Present invention deals with a method for preparing water-absorbing polymers, so called superabsorbents. The invention is based on the finding that extruding hydrogel through a hole plate (13) obeying a complex design rule diminishes negative influence of thixotropy and increases the absorption speed of the superabsorbent made from the hydrogel.
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
The invention relates to the extraction of acrylic acid from aqueous flows. It is based on the object of specifying a method for extracting acrylic acid from aqueous flows, which manages with a low energy consumption and which permits longer operating times. This object is achieved in that to extract the acrylic acid, the aqueous flow containing the acrylic acid is brought into contact with a membrane, the side of which facing away from the aqueous flow is subjected to an organic solvent.
C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
C07C 51/44 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation
C07C 51/47 - SeparationPurificationStabilisationUse of additives by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by chemisorption
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; acrylate; acrylic substances (unprocessed -);
polymer solutions; hydrosoluble polymers; chemical polymers;
polymerization plastics; water absorbing polymers; aqueous
linear polymer gels; polymer resins, unprocessed;
biodegradable polymer compositions; polymerization plastics;
unprocessed synthetic polymers; chemicals for use in
polymerisations; polymerisates of organic compounds for the
plastics industry; polymer beads for use in manufacturing;
polymer beads for use in manufacturing; chemical compounds
for use in the manufacture of polymers; polymeric
intermediates; industrial chemicals, namely aqueous linear
polymer gels; polymers for use in manufacturing agricultural
chemicals; chemicals for use in the manufacture of smoke
suppressed polymers; sodium salts [chemical compounds];
liquid absorbing chemical products; chemicals for use in
fire extinguishing compositions; chemical products for
adsorbing; absorption agents; chemical adsorbents; fire
retardant chemicals; chemical preparations for soil
treatment; soil amendments for horticultural use; chemical
substances for preserving foodstuffs; industrial chemicals;
chemicals used in forestry; chemicals used in science;
chemicals for use in agriculture; chemical preparations for
use in the food industry; chemicals for use in the
manufacture of dyestuffs; polymeric chemicals for use in the
cosmetic industry; chemicals for use in industry and
science; chemicals for use in the manufacture of flame
retardant compositions; industrial chemicals for use in the
manufacture of colorants; copolymers; chemical compositions
for use in the construction industry. Plasters, materials for dressings; medical dressings;
sanitary preparations and articles; absorbent articles for
personal hygiene; nappies for babies and incontinents; adult
diapers; absorbent sanitary articles; pantyliners;
incontinence garments; disposable nappy liners; medical
dressings. Incontinence sheets; incontinence sheets for use with
babies; incontinence sheets for use with infants;
incontinence bed pads. Chemistry services; chemical analysis; chemical research;
industrial analysis and research services in the field of
chemistry; scientific consulting on the use of absorbent
ingredients in hygiene products and materials as well as
packaging materials; agricultural research services;
agricultural research in relation to spreading of
fertilisers and other agricultural chemicals; scientific and
industrial research; chemical laboratories; testing on
agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; acrylate; acrylic substances (unprocessed -);
polymer solutions; hydrosoluble polymers; chemical polymers;
polymerization plastics; water absorbing polymers; aqueous
linear polymer gels; polymer resins, unprocessed;
biodegradable polymer compositions; polymerization plastics;
unprocessed synthetic polymers; chemicals for use in
polymerisations; polymerisates of organic compounds for the
plastics industry; polymer beads for use in manufacturing;
polymer beads for use in manufacturing; chemical compounds
for use in the manufacture of polymers; polymeric
intermediates; industrial chemicals, namely, aqueous linear
polymer gels; polymers for use in manufacturing agricultural
chemicals; chemicals for use in the manufacture of smoke
suppressed polymers; sodium salts [chemical compounds];
liquid absorbing chemical products; chemicals for use in
fire extinguishing compositions; chemical products for
adsorbing; absorption agents; chemical adsorbents; fire
retardant chemicals; chemical preparations for soil
treatment; soil amendments for horticultural use; chemical
substances for preserving foodstuffs; industrial chemicals;
chemicals used in forestry; chemicals used in science;
chemicals for use in agriculture; chemical preparations for
use in the food industry; chemicals for use in the
manufacture of dyestuffs; polymeric chemicals for use in the
cosmetic industry; chemicals for use in industry and
science; chemicals for use in the manufacture of flame
retardant compositions; industrial chemicals for use in the
manufacture of colorants; copolymers; chemical compositions
for use in the construction industry. Plasters, materials for dressings; medical dressings;
sanitary preparations and articles; absorbent articles for
personal hygiene; nappies for babies and incontinents; adult
diapers; absorbent sanitary articles; pantyliners;
incontinence garments; disposable nappy liners; medical
dressings. Incontinence sheets; incontinence sheets for use with
babies; incontinence sheets for use with infants;
incontinence bed pads. Chemistry services; chemical analysis; chemical research;
industrial analysis and research services in the field of
chemistry; scientific consulting on the use of absorbent
ingredients in hygiene products and materials as well as
packaging materials; agricultural research services;
agricultural research in relation to spreading of
fertilisers and other agricultural chemicals; scientific and
industrial research; chemical laboratories; testing on
agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; acrylate; acrylic substances (unprocessed -);
polymer solutions; hydrosoluble polymers; chemical polymers;
polymerization plastics; water absorbing polymers; aqueous
linear polymer gels; polymer resins, unprocessed;
biodegradable polymer compositions; polymerization plastics;
unprocessed synthetic polymers; chemicals for use in
polymerisations; polymerisates of organic compounds for the
plastics industry; polymer beads for use in manufacturing;
polymer beads for use in manufacturing; chemical compounds
for use in the manufacture of polymers; polymeric
intermediates; industrial chemicals, namely aqueous linear
polymer gels; polymers for use in manufacturing agricultural
chemicals; chemicals for use in the manufacture of smoke
suppressed polymers; sodium salts [chemical compounds];
liquid absorbing chemical products; chemicals for use in
fire extinguishing compositions; chemical products for
adsorbing; absorption agents; chemical adsorbents; fire
retardant chemicals; chemical preparations for soil
treatment; soil amendments for horticultural use; chemical
substances for preserving foodstuffs; industrial chemicals;
chemicals used in forestry; chemicals used in science;
chemicals for use in agriculture; chemical preparations for
use in the food industry; chemicals for use in the
manufacture of dyestuffs; polymeric chemicals for use in the
cosmetic industry; chemicals for use in industry and
science; chemicals for use in the manufacture of flame
retardant compositions; industrial chemicals for use in the
manufacture of colorants; copolymers; chemical compositions
for use in the construction industry. Plasters, materials for dressings; medical dressings;
sanitary preparations and articles; absorbent articles for
personal hygiene; nappies for babies and incontinents; adult
diapers; absorbent sanitary articles; pantyliners;
incontinence garments; disposable nappy liners; medical
dressings. Incontinence sheets; incontinence sheets for use with
babies; incontinence sheets for use with infants;
incontinence bed pads. Chemistry services; chemical analysis; chemical research;
industrial analysis and research services in the field of
chemistry; scientific consulting on the use of absorbent
ingredients in hygiene products and materials as well as
packaging materials; agricultural research services;
agricultural research in relation to spreading of
fertilisers and other agricultural chemicals; scientific and
industrial research; chemical laboratories; testing on
agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; acrylate; acrylic substances (unprocessed -); polymer solutions; hydrosoluble polymers; chemical polymers; polymerization plastics; water absorbing polymers; aqueous linear polymer gels; polymer resins, unprocessed; biodegradable polymer compositions; polymerization plastics; unprocessed synthetic polymers; chemicals for use in polymerisations; polymerisates of organic compounds for the plastics industry; polymer beads for use in manufacturing; polymer beads for use in manufacturing; chemical compounds for use in the manufacture of polymers; polymeric intermediates; industrial chemicals, namely, aqueous linear polymer gels; polymers for use in manufacturing agricultural chemicals; chemicals for use in the manufacture of smoke suppressed polymers; sodium salts [chemical compounds]; liquid absorbing chemical products; chemicals for use in fire extinguishing compositions; chemical products for adsorbing; absorption agents; chemical adsorbents; fire retardant chemicals; chemical preparations for soil treatment; soil amendments for horticultural use; chemical substances for preserving foodstuffs; industrial chemicals; chemicals used in forestry; chemicals used in science; chemicals for use in agriculture; chemical preparations for use in the food industry; chemicals for use in the manufacture of dyestuffs; polymeric chemicals for use in the cosmetic industry; chemicals for use in industry and science; chemicals for use in the manufacture of flame retardant compositions; industrial chemicals for use in the manufacture of colorants; copolymers; chemical compositions for use in the construction industry. Plasters, materials for dressings; medical dressings; sanitary preparations and articles; absorbent articles for personal hygiene; nappies for babies and incontinents; adult diapers; absorbent sanitary articles; pantyliners; incontinence garments; disposable nappy liners; medical dressings. Incontinence sheets; incontinence sheets for use with babies; incontinence sheets for use with infants; incontinence bed pads. Chemistry services; chemical analysis; chemical research; industrial analysis and research services in the field of chemistry; scientific consulting on the use of absorbent ingredients in hygiene products and materials as well as packaging materials; agricultural research services; agricultural research in relation to spreading of fertilisers and other agricultural chemicals; scientific and industrial research; chemical laboratories; testing on agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; acrylate; acrylic substances (unprocessed -); polymer solutions; hydrosoluble polymers; chemical polymers; polymerization plastics; water absorbing polymers; aqueous linear polymer gels; polymer resins, unprocessed; biodegradable polymer compositions; polymerization plastics; unprocessed synthetic polymers; chemicals for use in polymerisations; polymerisates of organic compounds for the plastics industry; polymer beads for use in manufacturing; polymer beads for use in manufacturing; chemical compounds for use in the manufacture of polymers; polymeric intermediates; industrial chemicals, namely aqueous linear polymer gels; polymers for use in manufacturing agricultural chemicals; chemicals for use in the manufacture of smoke suppressed polymers; sodium salts [chemical compounds]; liquid absorbing chemical products; chemicals for use in fire extinguishing compositions; chemical products for adsorbing; absorption agents; chemical adsorbents; fire retardant chemicals; chemical preparations for soil treatment; soil amendments for horticultural use; chemical substances for preserving foodstuffs; industrial chemicals; chemicals used in forestry; chemicals used in science; chemicals for use in agriculture; chemical preparations for use in the food industry; chemicals for use in the manufacture of dyestuffs; polymeric chemicals for use in the cosmetic industry; chemicals for use in industry and science; chemicals for use in the manufacture of flame retardant compositions; industrial chemicals for use in the manufacture of colorants; copolymers; chemical compositions for use in the construction industry. Plasters, materials for dressings; medical dressings; sanitary preparations and articles; absorbent articles for personal hygiene; nappies for babies and incontinents; adult diapers; absorbent sanitary articles; pantyliners; incontinence garments; disposable nappy liners; medical dressings. Incontinence sheets; incontinence sheets for use with babies; incontinence sheets for use with infants; incontinence bed pads. Chemistry services; chemical analysis; chemical research; industrial analysis and research services in the field of chemistry; scientific consulting on the use of absorbent ingredients in hygiene products and materials as well as packaging materials; agricultural research services; agricultural research in relation to spreading of fertilisers and other agricultural chemicals; scientific and industrial research; chemical laboratories; testing on agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; acrylate; acrylic substances (unprocessed -); polymer solutions; hydrosoluble polymers; chemical polymers; polymerization plastics; water absorbing polymers; aqueous linear polymer gels; polymer resins, unprocessed; biodegradable polymer compositions; polymerization plastics; unprocessed synthetic polymers; chemicals for use in polymerisations; polymerisates of organic compounds for the plastics industry; polymer beads for use in manufacturing; polymer beads for use in manufacturing; chemical compounds for use in the manufacture of polymers; polymeric intermediates; industrial chemicals, namely aqueous linear polymer gels; polymers for use in manufacturing agricultural chemicals; chemicals for use in the manufacture of smoke suppressed polymers; sodium salts [chemical compounds]; liquid absorbing chemical products; chemicals for use in fire extinguishing compositions; chemical products for adsorbing; absorption agents; chemical adsorbents; fire retardant chemicals; chemical preparations for soil treatment; soil amendments for horticultural use; chemical substances for preserving foodstuffs; industrial chemicals; chemicals used in forestry; chemicals used in science; chemicals for use in agriculture; chemical preparations for use in the food industry; chemicals for use in the manufacture of dyestuffs; polymeric chemicals for use in the cosmetic industry; chemicals for use in industry and science; chemicals for use in the manufacture of flame retardant compositions; industrial chemicals for use in the manufacture of colorants; copolymers; chemical compositions for use in the construction industry. Plasters, materials for dressings; medical dressings; sanitary preparations and articles; absorbent articles for personal hygiene; nappies for babies and incontinents; adult diapers; absorbent sanitary articles; pantyliners; incontinence garments; disposable nappy liners; medical dressings. Incontinence sheets; incontinence sheets for use with babies; incontinence sheets for use with infants; incontinence bed pads. Chemistry services; chemical analysis; chemical research; industrial analysis and research services in the field of chemistry; scientific consulting on the use of absorbent ingredients in hygiene products and materials as well as packaging materials; agricultural research services; agricultural research in relation to spreading of fertilisers and other agricultural chemicals; scientific and industrial research; chemical laboratories; testing on agriculture.
The present invention relates to a biologically degradable superabsorber based on polyglutamic acid (salt) and the preparation thereof. It was the objective to provide a biologically degradable superabsorber with improved performance. This problem has been solved by a method for preparing a water-absorbing polyglutamic acid (salt), comprising the of: i) providing an aqueous mixture of a non-crosslinked polyglutamic acid (salt) and at least one crosslinker, ii) crosslinking the non-crosslinked polyglutamic acid (salt) to obtain a crosslinked polyglutamic acid (salt)-gel, iii) drying the crosslinked polyglutamic acid (salt)-gel to obtain a dried crosslinked water-absorbing polyglutamic acid (salt), iv) heat treating the dried crosslinked water-absorbing polyglutamic acid (salt) in the presence of at least one facilitator to obtain the water-absorbing polyglutamic acid (salt).
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
C08G 69/48 - Polymers modified by chemical after-treatment
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; Acrylate; Acrylic substances (Unprocessed -); Polymer solutions; Hydrosoluble polymers; Chemical polymers; Polymerization plastics; Water absorbing polymers; Aqueous linear polymer gels; Polymer resins, unprocessed; Biodegradable polymer compositions; Polymerization plastics; Unprocessed synthetic polymers; Chemicals for use in polymerisations; Polymerisates of organic compounds for the plastics industry; Polymer beads for use in manufacturing; Polymer beads for use in manufacturing; Chemical compounds for use in the manufacture of polymers; Polymeric intermediates; Industrial chemicals, namely Aqueous linear polymer gels; Polymers for use in manufacturing agricultural chemicals; Chemicals for use in the manufacture of smoke suppressed polymers; Sodium salts [chemical compounds]; Liquid absorbing chemical products; Chemicals for use in fire extinguishing compositions; Chemical products for adsorbing; Absorption agents; Chemical adsorbents; Fire retardant chemicals; Chemical preparations for soil treatment; Soil amendments for horticultural use; Chemical substances for preserving foodstuffs; Industrial chemicals; Chemicals used in forestry; Chemicals used in science; Chemicals for use in agriculture; Chemical preparations for use in the food industry; Chemicals for use in the manufacture of dyestuffs; Polymeric chemicals for use in the cosmetic industry; Chemicals for use in industry and science; Chemicals for use in the manufacture of flame retardant compositions; Industrial chemicals for use in the manufacture of colorants; Copolymers; Chemical compositions for use in the construction industry. Plasters, materials for dressings; Medical dressings; Sanitary preparations and articles; Absorbent articles for personal hygiene; Nappies for babies and incontinents; Adult diapers; Absorbent sanitary articles; Pantyliners; Incontinence garments; Disposable nappy liners; Medical dressings. Incontinence sheets; Incontinence sheets for use with babies; Incontinence sheets for use with infants; Incontinence bed pads; Menstrual aids. Chemistry services; Chemical analysis; Chemical research; Industrial analysis and research services in the field of chemistry; Hygiene and beauty treatment, Especially Consulting on the use of absorbent ingredients in hygiene products and materials as well as packaging materials; Agricultural services; Spreading of fertilisers and other agricultural chemicals; Scientific and industrial research; Chemical laboratories; Testing on agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; Acrylate; Acrylic substances (Unprocessed -); Polymer solutions; Hydrosoluble polymers; Chemical polymers; Polymerization plastics; Water absorbing polymers; Aqueous linear polymer gels; Polymer resins, unprocessed; Biodegradable polymer compositions; Polymerization plastics; Unprocessed synthetic polymers; Chemicals for use in polymerisations; Polymerisates of organic compounds for the plastics industry; Polymer beads for use in manufacturing; Polymer beads for use in manufacturing; Chemical compounds for use in the manufacture of polymers; Polymeric intermediates; Industrial chemicals, namely, Aqueous linear polymer gels; Polymers for use in manufacturing agricultural chemicals; Chemicals for use in the manufacture of smoke suppressed polymers; Sodium salts [chemical compounds]; Liquid absorbing chemical products; Chemicals for use in fire extinguishing compositions; Chemical products for adsorbing; Absorption agents; Chemical adsorbents; Fire retardant chemicals; Chemical preparations for soil treatment; Soil amendments for horticultural use; Chemical substances for preserving foodstuffs; Industrial chemicals; Chemicals used in forestry; Chemicals used in science; Chemicals for use in agriculture; Chemical preparations for use in the food industry; Chemicals for use in the manufacture of dyestuffs; Polymeric chemicals for use in the cosmetic industry; Chemicals for use in industry and science; Chemicals for use in the manufacture of flame retardant compositions; Industrial chemicals for use in the manufacture of colorants; Copolymers; Chemical compositions for use in the construction industry. Plasters, materials for dressings; Medical dressings; Sanitary preparations and articles; Absorbent articles for personal hygiene; Nappies for babies and incontinents; Adult diapers; Absorbent sanitary articles; Pantyliners; Incontinence garments; Disposable nappy liners; Medical dressings. Incontinence sheets; Incontinence sheets for use with babies; Incontinence sheets for use with infants; Incontinence bed pads; Menstrual aids. Chemistry services; Chemical analysis; Chemical research; Industrial analysis and research services in the field of chemistry; Hygiene and beauty treatment, Especially Consulting on the use of absorbent ingredients in hygiene products and materials as well as packaging materials; Agricultural services; Spreading of fertilisers and other agricultural chemicals; Scientific and industrial research; Chemical laboratories; Testing on agriculture.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Acrylic acids; Acrylate; Acrylic substances (Unprocessed -); Polymer solutions; Hydrosoluble polymers; Chemical polymers; Polymerization plastics; Water absorbing polymers; Aqueous linear polymer gels; Polymer resins, unprocessed; Biodegradable polymer compositions; Polymerization plastics; Unprocessed synthetic polymers; Chemicals for use in polymerisations; Polymerisates of organic compounds for the plastics industry; Polymer beads for use in manufacturing; Polymer beads for use in manufacturing; Chemical compounds for use in the manufacture of polymers; Polymeric intermediates; Industrial chemicals, namely Aqueous linear polymer gels; Polymers for use in manufacturing agricultural chemicals; Chemicals for use in the manufacture of smoke suppressed polymers; Sodium salts [chemical compounds]; Liquid absorbing chemical products; Chemicals for use in fire extinguishing compositions; Chemical products for adsorbing; Absorption agents; Chemical adsorbents; Fire retardant chemicals; Chemical preparations for soil treatment; Soil amendments for horticultural use; Chemical substances for preserving foodstuffs; Industrial chemicals; Chemicals used in forestry; Chemicals used in science; Chemicals for use in agriculture; Chemical preparations for use in the food industry; Chemicals for use in the manufacture of dyestuffs; Polymeric chemicals for use in the cosmetic industry; Chemicals for use in industry and science; Chemicals for use in the manufacture of flame retardant compositions; Industrial chemicals for use in the manufacture of colorants; Copolymers; Chemical compositions for use in the construction industry. Plasters, materials for dressings; Medical dressings; Sanitary preparations and articles; Absorbent articles for personal hygiene; Nappies for babies and incontinents; Adult diapers; Absorbent sanitary articles; Pantyliners; Incontinence garments; Disposable nappy liners; Medical dressings. Incontinence sheets; Incontinence sheets for use with babies; Incontinence sheets for use with infants; Incontinence bed pads; Menstrual aids. Chemistry services; Chemical analysis; Chemical research; Industrial analysis and research services in the field of chemistry; Hygiene and beauty treatment, Especially Consulting on the use of absorbent ingredients in hygiene products and materials as well as packaging materials; Agricultural services; Spreading of fertilisers and other agricultural chemicals; Scientific and industrial research; Chemical laboratories; Testing on agriculture.
13.
SEPARATION OF ACRYLIC ACID WITH THE AID OF MEMBRANE CONTACTORS
The invention relates to the extraction of acrylic acid from aqueous streams. The aim of the invention is to provide a process for extracting acrylic acid from aqueous streams with a low energy expenditure and allowing longer operating times. This aim is achieved in that, in order to extract the acrylic acid, the aqueous stream containing the acrylic acid is brought into contact with a membrane whose side facing away from the aqueous stream is subjected to an organic solvent.
C07C 51/47 - SeparationPurificationStabilisationUse of additives by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by chemisorption
C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
C07C 45/35 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
Present invention deals with a method for preparing water-absorbing polymers, so called superabsorbents. The invention is based on the finding that extruding hydrogel through a hole plate (13) obeying a complex design rule diminishes negative influence of thixotropy and increases the absorption speed of the superabsorbent made from the hydrogel.
The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.
A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
A61L 15/46 - Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
The present invention relates to a polymeric foam, and a process for making the polymeric foam comprising the steps of a) providing a monomeric solution consisting of a polymerizable, ethylenically unsaturated monomer containing one or more acid groups, water and one or more crosslinkers having more than one polymerizable group per molecule; b) introducing a blowing agent to the monomer solution; c) treating the monomer solution with an ultrasonic treatment; d) introducing one or more initiation agents to the monomer solution; and e) polymerizing the monomer solution.
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
A43B 17/00 - Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
C08J 9/20 - Making expandable particles by suspension polymerisation in the presence of the blowing agent
C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
17.
Superabsorbent composition with tannins for odor control
The present invention relates to a water-absorbing composition comprising water-absorbing polymer structures, on the surface of which is at least one tannin fraction which has a number-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, which has a weight-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, or which is a hydrolysable gallotannin.
The present invention also relates to a process for the preparation of a water-absorbing composition, the water-absorbing composition obtainable by this process, a composite, a process for the production of a composite, the composite obtainable by this process, chemical products, such as, for example, hygiene articles, the use of a water-absorbing composition or of a composite and the use of a tannin fraction.
The present invention provides an apparatus comprising a feed arranged below the middle of the apparatus, a quenching agent inlet arranged above the feed, an outlet arranged below the feed and a draw arranged above the quenching agent inlet, the apparatus having a region provided with one or more packing elements, wherein at least one means which ensures the formation of a liquid layer having a height of at least 1 cm is present between the quenching agent inlet and a packing element present between the quenching agent inlet and feed. The present invention also provides a process for preparing acrylic acid, which includes a step of oxidizing acrolein, wherein the reaction mixture obtained in this oxidation is contacted with water as quenching agent in an inventive apparatus, and a composition obtainable as bottom product in the process according to the invention, comprising acrylic acid and water.
C07C 51/48 - SeparationPurificationStabilisationUse of additives by liquid-liquid treatment
C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
B01J 19/30 - Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
B01D 3/16 - Fractionating columns in which vapour bubbles through liquid
B01D 3/00 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
B01D 3/22 - Fractionating columns in which vapour bubbles through liquid with horizontal sieve plates or gridsConstruction of sieve plates or grids
B01J 10/00 - Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particlesApparatus specially adapted therefor
Described is a process for producing water-absorbing polymers wherein a base polymer A is contacted and mixed with an aqueous additive solution B in a mixing device, wherein the base polymer A is formed from monomers bearing at least 30% neutralized acid groups and the aqueous additive solution B is dosed into the mixing device without nozzle via a pipe.
The present invention relates to a process for producing a water-absorbing polymer, comprising the process steps of (i) mixing (α1) 0.1 to 99.999% by weight of polymerizable, ethylenically unsaturated monomers containing acid groups, or salts thereof, (α2) 0 to 70% by weight of polymerized, ethylenically unsaturated monomers copolymerizable with (α1), (α3) 0.001 to 10% by weight of one or more crosslinkers, where the sum of the weights (α1) to (α3) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble, aqueous untreated hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sieving the water-absorbing polymer to size, wherein the aqueous monomer solution, is admixed with 0.01 to 5% by weight of at least one surfactant and optionally 0.01 to 5% by weight of a blowing agent having a particle size of 10 μm to 900 μm, based on the water-absorbing polymer.
Described is the production of water-absorbing polymeric particles by polymerizing a monomer solution or suspension comprising a) at least one ethylenically unsaturated acid-functional monomer which is optionally at least partly present as salt, b) at least one crosslinker and c) at least one initiator, wherein the process further comprises drying the resulting polymer and also optionally grinding the dried polymer and sieving the ground polymer and also optionally surface-postcrosslinking the dried and possibly ground and sieved polymer, and wherein the polymerization is carried out in the presence of aminopolycarboxylic acids and/or salts thereof, in particular in the presence of ethylenediaminedisuccinic acid and/or a salt thereof.
C08L 101/14 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
A61L 15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bondsDerivatives thereof
The present invention relates to an anti-stick processing aid for use in a process for producing water-absorbing polymers, comprising the steps of:
wherein the anti-stick processing aid is used before and/or in steps (iii).
B05D 1/00 - Processes for applying liquids or other fluent materials
C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B05D 1/28 - Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
wherein the weight quantities are each based on the overall weight of the water-absorbing composition.
The present invention also relates to a process for producing a water-absorbing composition, the water-absorbing composition obtainable by this process, a composite, a process for producing a composite, the composite obtainable by this process, chemical products such as foams, moldings, fibers, foils, films, cables, sealing materials, liquid-imbibing hygiene articles, carriers for plant and fungal growth regulators, packaging materials, soil additives or building products and also the use of a water-absorbing composition.
B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
B01J 20/30 - Processes for preparing, regenerating or reactivating
A61L 15/42 - Use of materials characterised by their function or physical properties
A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.
A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
A61L 15/46 - Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
0 and are subsequently dried on their way through the belt dryer and wherein the belt material has been cooled before coming into contact with the gel particles. The invention also relates to water-absorbent polymer particles obtainable by such a process.
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
B29K 35/00 - Use of polymers of unsaturated polycarboxylic acids as moulding material
F26B 17/02 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materialsMachines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts propelling the materials over stationary surfaces
A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
A61L 15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bondsDerivatives thereof
The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150° C. in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.
ii) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion.
The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.
C08L 101/14 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
29.
Process for the continuous preparation of water-absorbent polymers
The invention relates generally to a process for the preparation of water-absorbent polymer particles, including the process steps of preparing particulate water-absorbent polymer and mixing the particulate water-absorbent polymer with an aqueous crosslinker solution and heat-treating the mixture of particulate water-absorbent polymer in a horizontally operated mixing device, wherein the horizontally operated mixing device is hydraulically driven. The invention also relates to water-absorbent polymer particles obtainable by such a process.
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
This invention relates to a method for producing a water-absorbing polymer, including the following steps: (i) mixing (α1) 0.1 to 99.999 wt % polymerizable, ethylenically unsaturated, acid-group-containing monomers; (α2) 0 to 70 wt % polymerized ethylenically unsaturated, monomers copolymerizable with (α1); (α3) 0.00 1 to 10 wt %, cross-linking agent(s); (α4) 0 to 30 wt % water-soluble polymers; and (α5) 0 to 20 wt % additive(s), wherein the total quantity by weight of (α1) to (α5) amounts to 100 wt %, (ii) radical polymerization while cross-linking, in order to form a hydrogel polymer, (iii) drying the hydrogel polymer, (iv) grinding and sifting the water-absorbing polymer, (v) surface post-cross-linking the hydrogel polymer, and (vi) drying and processing the polymer, wherein, before the admixture of the initiator and the start of radical polymerization, 0.01 to 5 wt % of a surfactant, relative to acrylic acid, 0.01 to 5 wt % foaming agent, are added.
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
A61L 15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bondsDerivatives thereof
A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
B01J 20/30 - Processes for preparing, regenerating or reactivating
The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.
A process for producing a water-absorbing polymer composition, comprising the process steps of (i) mixing (α1) 0.1 to 99.999% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof (α2) 0 to 70% by weight of polymerized, ethylenically unsaturated monomers copolymerizable with (α1), (α3) 0.001 to 10% by weight of one or more crosslinkers, (α4) 0 to 30% by weight of water-soluble polymers, and (α5) 0 to 20% by weight of one or more assistants, where the sum of their weights (α1) to (α5) is 100% by weight, (ii) free-radical polymerization with crosslinking to form a water-insoluble aqueous untreated hydrogel polymer, and surface postcrosslinking the ground hydrogel polymer wherein blowing agents having a particle size of 100 μm to 900 μm are added to the aqueous monomer solution prior to the addition of the initiator and the start of the free-radical polymerization.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
34.
Elastic absorbent sanitary article for absorbing bodily fluids
An absorbent hygiene product for acquiring fluids, having a flexurally yielding topsheet and a flexurally yielding backsheet, has, disposed between these sheets, an absorbent laminate, which in turn has two flexurally yielding outer plies, arranged adheringly between which are at least two diagonally intersecting, pre-tensioned plies of elastic filaments, a quantity of a superabsorbent polymer being incorporated in each of the discrete sections thus formed, and the topsheet-side outer ply of the laminate consists of a hydrophobic material, and the backsheet-side outer ply of the laminate consists of a hydrophilic material.
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
A61F 13/532 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
B32B 5/04 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a layer being specifically extensible by reason of its structure or arrangement
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 7/02 - Physical, chemical or physicochemical properties
B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
35.
Process for producing improved absorbent polymers by means of cryogenic grinding
A process for producing a water-absorbing polymer comprises: (i) mixing (α1) 0.1-99.99% by weight of ethylenically unsaturated monomers containing acid groups or salts thereof, or ethylenically unsaturated monomers including a protonated or quaternized nitrogen, or mixtures thereof, (α2) 0-70% by weight of ethylenically unsaturated monomers copolymerizable with (α1), (α3) 0.001-10% by weight of one or more crosslinkers, (α4) 0-30% by weight of water-soluble polymers, and (α5) 0-20% by weight of one or more assistants, where the sum of the weights (α1) to (α5) is 100%; (ii) free-radical polymerization with crosslinking to form an untreated hydrogel polymer; (iii) coarse comminution of the untreated hydrogel polymer to give pieces having a diameter from 0.1 mm to 5.0 cm; (iv) cooling and grinding the untreated hydrogel polymer; (v) drying the untreated hydrogel polymer after grinding at a temperature from 85° C. to 260° C.; (vi) postcrosslinking the hydrogel polymer and (vii) drying the water-absorbing polymer.
A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
The present process separates acrylic acid from a composition containing acrylic acid and at least one accompanying product. The process first involves contacting the composition with an aqueous liquid stream to give a liquid solution of acrylic acid, accompanying product, and water. The water then forms an azeotrope with an entrainer, which is added to the solution. Distillation then separates the solution into an overhead product containing the azeotrope and a bottom product containing acrylic acid and accompanying product. The overhead product is separated into water and entrainer and the bottom product is separated in a distillation column into acrylic acid and accompanying product. The process provides a way to remove high- and low-boiling products with a small number of distillation columns.
C07C 51/46 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
The invention relates to producing a superabsorbent polymer comprising (I) producing a (meth)acrylic acid comprising the steps of (a) synthesizing a crude (meth)acrylic acid phase; (b) distillatively working-up the crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase comprising (meth)acrylic acid dimers and/or (meth)acrylic acid oligomers; (c) splitting at least a part of the (meth)acrylic acid dimers or of the (meth)acrylic acid oligomers or both from the dimer phase to obtain a (meth)acrylic acid-comprising a low boiling phase and a high boiling phase comprising less (meth)acrylic acid than the low boiling phase; (d) separating at least a part of the (meth)acrylic acid from the low boiling phase by forming crystals to obtain a pure (meth)acrylic acid, and a residue; (II) polymerizing a monomer phase comprising the pure (meth)acrylic acid to obtain a polymer phase; and (III) working-up the polymer phase to obtain the polymer.
Laminates are described herein. A laminate is characterized in that the laminate contains a water-absorbing polymer known as a super-absorbent polymer (SAP) between one or more elastic interplies, wherein the interplies consist of sheetlike lengths of material which are firmly bonded together on the outside surface of individual threads, strands or bands and this laminate is extendable essentially transversely to the production direction and shirred in a relaxed state, and the elastic interplies contain many individual sections or cassettes of superabsorbent and create room for the expansion of the laminate on fluid imbibition perpendicularly to and within the manufacturing plane.
B32B 3/24 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an apertured layer, e.g. of expanded metal
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 5/04 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a layer being specifically extensible by reason of its structure or arrangement
B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
A61F 13/53 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium
A61F 13/534 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
A61F 13/537 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
A61F 13/532 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
A61F 13/539 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium characterised by the connection of absorbent layers with each other or with the outer layers
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
B32B 38/00 - Ancillary operations in connection with laminating processes
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
39.
Superabsorbent polymers and methods of making the same
In one aspect, a process for the preparation of a superabsorbent polymer is described herein. In some embodiments, the process comprises (I) preparing acrylic acid, wherein the process comprises (a1) provision of a fluid F1 having a composition comprising from about 5 to about 20 wt. % of hydroxypropionic acid, salts thereof, or mixtures thereof; from about 0.1 to about 5 wt. % of inorganic salts; from about 0.1 to about 30 wt. % of organic compounds which differ from hydroxypropionic acid; from 0 to about 50 wt. % of solids; and from about 20 to about 90 wt. % of water; (a2) dehydration of said hydroxypropionic acid to give a fluid F2 containing acrylic acid; and (a3) purification of said fluid F2 to give a purified acrylic acid phase comprising acrylic acid having a purity of at least 70 wt. %; and (II) polymerizing the acrylic acid of (I) to form a superabsorbent polymer.
The present invention relates to a process for producing a superabsorbent a polymer comprises (I) producing a pure (meth)acrylic acid comprising the steps of (a) synthesizing a crude (meth)acrylic acid phase; (b) distillatively working-up the crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase comprising (meth)acrylic acid dimers or (meth)acrylic acid oligomers or both; (c) splitting at least a part of the (meth)acrylic acid dimers or of the (meth)acrylic acid oligomers or both from the dimer phase to obtain a (meth)acrylic acid-comprising low boiling phase and a high boiling phase comprising less (meth)acrylic acid than the low boiling phase; (d) separating at least a part of the (meth)acrylic acid from the low boiling phase to obtain a pure (meth)acrylic acid, and a residue; (II) polymerizing a monomer phase comprising the pure (meth)acrylic acid to obtain a polymer phase; and (III) working-up the polymer phase to obtain the polymer.
The present invention relates to superabsorbent polymer comprising the comprising the free radical polymerization product of an aqueous monomer mixture containing at least one α,β-ethylenically unsaturated monomer; at least one monomer having at least two α,β-ethylenically unsaturated groups; a crosslinking agent having at least two polymerizable double bonds; iron ions in an amount of from about 0.1 to about 3 wppm based on the total weight of the aqueous monomer mixture; and at least one chelating agent in an amount to provide a molar ratio of chelating agent to iron ion of from about 0.8 to about 4.0.
C08F 4/72 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from metals not provided for in group
C08F 36/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
C08F 210/00 - Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
42.
Method for producing acrolein comprising the regeneration of a raw glycerin phase
The invention relates to a method for producing acrolein by dehydrating an aqueous glycerin phase in an acrolein reaction region, obtaining an aqueous acrolein reaction phase; at least partially separating the aqueous acrolein reaction phase into an acrolein-rich acrolein phase and an acrolein-poor residual phase comprising glycerin, water and various other residuals; and recirculating at least part of the residual phase into the acrolein reaction region. Additionally, removing at least one of the residuals, other than glycerin or water, from either of the glycerin phase or a mixture phase obtained by mixing the glycerol phase with the low-acrolein residue phase and feeding the resulting purified glycerin or mixture phase into the acrolein reaction region. The invention furthermore relates to a method for producing acrylic acid, water-absorbing polymer formations, compounds and hygiene articles, and to devices for carrying out those methods.
The present invention relates to a process for preparing unsaturated aldehydes or unsaturated carboxylic acids by heterogeneous catalytic gas phase oxidation of unsaturated or saturated hydrocarbons, comprising the process steps of: i) providing a gas mixture comprising a saturated hydrocarbon and catalytically dehydrogenating the saturated hydrocarbon in the gas phase to obtain a gas mixture comprising an unsaturated hydrocarbon in a dehydrogenation reactor having a dehydrogenation catalyst material; or ii) providing a gas mixture comprising oxygen and an unsaturated hydrocarbon; iii) catalytically oxidizing the unsaturated hydrocarbon obtained in process step i) or provided in process step ii) in the gas phase to obtain a gas mixture comprising an unsaturated aldehyde in a first oxidation reactor having a first oxidation catalyst material; wherein at least one of the reactors selected from the dehydrogenation reactor, the first oxidation reactor and the second oxidation reactor comprises at least one foam body.
C07C 45/35 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
B01J 19/24 - Stationary reactors without moving elements inside
B01J 8/06 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds in tube reactorsChemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the solid particles being arranged in tubes
The present invention relates to superabsorbent polymer comprising acrylic acid made by the process comprising the steps of heating an aqueous glycerine solution to form glycerine; transporting the glycerine to the dehydration reactor; dehydrating the glycerine to an acrolein-comprising dehydration product; gas phase oxidating of the acrolein-comprising dehydration product to obtain an acrylic acid-comprising monomer gas; bringing into contact of the monomer gas with a quench agent to obtain an acrylic acid-comprising quench phase; working-up the quench phase to obtain an acrylic acid-comprising monomer phase; and polymerizing the acrylic acid-comprising monomer phase; wherein a plurality of gas bubbles is generated and wherein the dehydration occurs at least partially in the liquid phase. The superabsorbent polymer has certain properties for biodegradability and sustainability. Further, at least about 25% of the acrylic acid is based on glycerine. The superabsorbent polymer has a sustainability factor of at least about 80%.
The invention relates to a process for the preparation of acrylic acid and a process for the preparation of polyacrylic acid comprising the process steps: (a1) preparation of 3-hydroxypropionic acid from a biological material to give a fluid, in particular aqueous, phase containing 3-hydroxypropionic acid; (a2) dehydration of the 3-hydroxypropionic acid to give a fluid, in particular aqueous, solution containing acrylic acid; (a3) purification of the solution containing acrylic acid by a suspension crystallization or a layer crystallization to give a purified phase; and corresponding devices for carrying out these processes, and acrylic acid and polyacrylates. The invention is distinguished in that acrylic acid and polyacrylates can thereby be prepared efficiently, inexpensively, and sustainably with simple means and with a high purity on the basis of regenerable raw materials.
The present invention relates to a method for purifying an unpurified phase, containing a target product, preferably (meth)acrylic acid, water, and at least one impurity differing from the target product and from water comprising: a) crystallizing the target product and water; b) separating the crystals from the mother liquor created in step a); c) melting at least part of the separated crystals to form a melt; and d) recycling at least part of said melt to step b). The invention further relates to a method for the production of a purified phase, containing a target product and water, a method for the production of a polymer based on (meth)acrylic acid, polymers that may be obtained by means of said method, chemical products, such as fibers or molded bodies, and the use of polymers.
The present invention relates to a water-absorbing polymer structure comprising about 10 to about 100,000 ppm, based on the solids content of the water-absorbing polymer structure, of a non-polymerized sulphonate, a non-polymerized salt of a sulphonate or a mixture of a non-polymerized sulphonate and a non-polymerized salt of a sulphonate, and less than 1,000 ppm, based on the solids content of the water-absorbing polymer structure, of non-polymerized sulphites, non-polymerized bisulfites, non-polymerized sulphinates or non-polymerized salts of these compounds.
The present invention relates to a water-absorbing composition comprising water-absorbing polymer structures, on the surface of which is at least one tannin fraction which has a number-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, which has a weight-average molecular weight, determined in accordance with the test method described herein, of at least 1,000 g/mol, or which is a hydrolysable gallotannin.
The present invention also relates to a process for the preparation of a water-absorbing composition, the water-absorbing composition obtainable by this process, a composite, a process for the production of a composite, the composite obtainable by this process, chemical products, such as, for example, hygiene articles, the use of a water-absorbing composition or of a composite and the use of a tannin fraction.
The present invention relates to a process for the production of a superabsorber, comprising as steps providing a water-absorbing polymer structure, bringing the water-absorbing polymer structure into contact with a modifying agent, preferably a modifying agent, and the further treatment of the water-absorbing polymer structure which has been brought into contact with the modifying agent. The further treatment is carried out at least partly in a rotating container. The invention furthermore relates to a device for the production of a superabsorber, superabsorbers, a composite, a process for the production of a composite, the composites obtainable by this process, chemical products, such as foams, shaped articles or fibers, and the use of a superabsorber.
The present invention relates to a continuous process for the production of a superabsorbent polymer comprising providing an acidic liquid aqueous monomer mixture containing dissolved oxygen; continuously feeding the aqueous monomer mixture to a reactor; introducing a source of carbonate or hydrogen carbonate into the aqueous monomer mixture prior to entry into the reactor thereby forming a gas phase comprising carbon dioxide and at least a part of the dissolved oxygen, the gas phase being dispersed in the liquid phase; subjecting the gas/liquid mixture to at least partial phase separation immediately prior to or after entry into the reactor and at least partially removing the separated gaseous phase; subjecting the liquid phase in the reactor to free-radical polymerization to obtain the superabsorbent polymer, and continuously removing the superabsorbent polymer from the reactor.
The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer gel from the reactor; and drying the superabsorbent polymer gel. Where at least one off-gas stream removed from any stage of the process is subjected to scrubbing with a basic aqueous solution prior to venting to obtain an aqueous scrubber solution that is at least partially recycled to any of the above steps of the process.
The present invention relates to a process for the production of a superabsorbent polymer comprising preparing an aqueous mixture of monomers selected to provide after polymerization a superabsorbent polymer; feeding said monomer mixture to a reactor; subjecting the aqueous monomer mixture in the reactor to free-radical polymerization to obtain a superabsorbent polymer gel; removing the superabsorbent polymer from the reactor; and working-up the superabsorbent polymer removed from the reactor to obtain a final product, whereby a basic aqueous medium comprising carbonate and/or hydrogen carbonate is fed to the superabsorbent polymer gel.
The present invention relates to a process for the production of water-absorbing polymer structures, comprising the process steps of providing of an aqueous monomer solution comprising a polymerizable, monoethylenically unsaturated monomer (α1) carrying acid groups or a salt thereof; free-radical polymerization of the aqueous monomer solution to give a polymer gel, drying of the optionally comminuted polymer gel to give water-absorbing polymer structures, and surface post-crosslinking of the optionally ground and sieved water-absorbing polymer structures, wherein a thermoplastic polymer is added to the aqueous monomer solution before process step ii) or during process step ii), preferably before process step ii), or II) the polymer gel after process step ii) and before process step iv) or during process step iv), preferably before process step iv), or III) the water-absorbing polymer structure after process step iv).
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Chemicals used in industry, science, photography, agriculture, horticulture and forestry, in particular chemical base and intermediate products for use in agriculture and forestry and in horticulture and for manufacturing preparations for destroying vermin, rodenticides, molluscicides, fungicides, herbicides, insecticides, pesticides, nematicides and antiparasitic preparations, and for manufacturing pharmaceutical and veterinary products, including sanitary preparations; soil-conditioning chemicals; agrochemicals; artificial resins, all unprocessed (in the form of powders, liquids or pastes); unprocessed plastics, polymerisation resins, including absorbent and super-absorbent polymerisation resins, in particular for setting aqueous liquids of all types and for use in agriculture and forestry and in horticulture; polymers, incuding absorbent, super-absorbent and soluble polymers, plastic polymers for use in agriculture and forestry, as well as in gardening, fertilisers; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs and harvested crops; tanning substances; adhesives used in industry. Pharmaceutical, veterinary and sanitary preparations; preparations for destroying vermin, rodenticides, molluscicides; fungicides, herbicides, insecticides, pesticides, nematicides, antiparasitic preparations; plasters, materials for dressings; material for stopping teeth, dental wax; disinfectants; cleaning preparations with disinfectant properties; detergents for medical purposes. Scientific and industrial research and technological services, in particular in the field of agricultural chemistry; Chemistry services. Services in the field of agriculture, horticulture and forestry; spreading of fertilisers and other chemicals used in agriculture, horticulture and forestry; vermin exterminating for agriculture, horticulture and forestry; weed killing, analyses for agriculture and forestry and for horticulture.
55.
Acrylic acid and water-absorbing polymer structures based on renewable raw materials and process for their production by dehydration
The present invention relates to a process for production of acrylic acid, comprising the steps of a) dehydration of glycerine to an acrolein-comprising dehydration product; b) gas phase oxidation of the dehydration product to obtain an acrylic acid-comprising monomer gas; c) bringing into contact of the monomer gas with a quench agent to obtain an acrylic acid-comprising quench phase; and d) work-up of the quench phase to obtain an acrylic acid-comprising monomer phase; whereby, during the dehydration a liquid phase a1 and a gas phase a2 is present, whereby in the liquid phase a1 a plurality of gas bubbles is generated, as well as a process for production of polymers by polymerization of acrylic acid, preferably for production of water-absorbing polymers, the water-absorbing polymers obtainable by this process, a composite, a process for production of a composite, the composite obtainable by this process, and further chemical products.
B01J 8/04 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
56.
Water-absorbing polymer structure having improved permeability and absorption under pressure
The present invention relates to a process for the preparation of water-absorbing polymer structures, comprising the following process steps: I) providing an untreated, water-absorbing polymer structure; and II) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion. The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.
C08L 33/02 - Homopolymers or copolymers of acidsMetal or ammonium salts thereof
C08F 20/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
C08C 19/14 - Incorporating halogen atoms into the molecule by reaction with halogens
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
The present invention relates to a process for production of water-absorbing polymer structures comprising the process steps of providing an untreated, water-absorbing polymer structure (Pu) with a retention of at least about 35 g/g; and bringing this water-absorbing untreated polymer structure (Pu) into contact with a permeability-increasing agent. The invention further relates to the water-absorbing polymer structures obtainable by this process, water-absorbing polymer structures, a composite, a process for production of a composite, a composite obtainable by this process, chemical products comprising water-absorbing polymer structures or a composite as well as the use of water-absorbing polymer structures or of the composite in chemical products.
a large number of fine particles at least partly immobilized on the structure surface.
The invention furthermore relates to a process for the preparation of a superabsorber composition, the superabsorber composition obtainable by this process, a composite comprising the superabsorber composition according to the invention, a process for the production of a composite, the composite obtainable by this process, the use of the superabsorber composition according to the invention in chemical products and chemical products comprising the superabsorber composition according to the invention or the composite according to the invention.
C08L 101/14 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
The present invention relates to a process for the production of polymers, such as water-absorbing polymer structures, by radical polymerization of acrylic acid, whereby the acrylic acid has been obtained by a synthesis process which comprises as a process step the splitting of an organic material by means of an enzyme or at least one component of an enzyme. The invention also relates to the water-absorbing polymers obtainable by this process, water-absorbing polymers which are based to at least about 25 wt % upon partially neutralized acrylic acid, a composite, a process for the production of a composite, the composite obtainable by this production, the use of acrylic acid in the production of polymers, preferably in the production of water-absorbing polymer structures, a device for the production of acrylic acid, and a process for the production of acrylic acid.
A process for production of (meth)acrylic acid is disclosed. The process includes synthesizing and distillatively working-up a crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase including (meth)acrylic acid dimers and/or (meth)acrylic acid oligomers. At least a part of the (meth)acrylic acid dimers and/or of the (meth)acrylic acid oligomers from the dimer phase is split to obtain a (meth)acrylic acid including a low-boiling phase and a high-boiling phase including less (meth)acrylic acid than the low-boiling phase. At least a part of the (meth)acrylic acid from the low-boiling phase is separated by forming of one or more crystals to obtain a pure (meth)acrylic acid and a residue. Also disclosed is a device for production of (meth)acrylic acid, a process for production of a polymer as well as chemical products based on or including (meth)acrylic acid or a polymer as well as the use of (meth)acrylic acid or polymers in chemical products.
A water-absorbing polymer structure is disclosed, whose surface has been brought into contact with a combination of a metal salt and an oxide of a metal. The invention also relates to a process for treating the surface of water-absorbing polymer structures whereby the surface of water-absorbing polymer structures is brought into contact with a combination of a metal salt and an oxide of a metal at a temperature of from about 50 to about 300° C. The present invention further relates to the water-absorbing polymer structures obtainable by this process, a composite comprising a water-absorbing polymer structure and a substrate, chemical products such as foams and fibers comprising water-absorbing polymer structures or a composite, and the use of a combination of an oxide of a metal and of a metal salt for treatment of the surface of super-absorbing polymer structures.
01 - Chemical and biological materials for industrial, scientific and agricultural use
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
Goods & Services
Chemicals used in industry, in particular auxiliary agents
for the textile industry, for the chemical fibre industry,
for the leather and fur industries, for industrial cleaning,
for processing and for the chemico-technology industry;
chemicals used in science and photography, as well as in
agriculture, horticulture and forestry; artificial resins,
all unprocessed (in the form of powders, liquids or pastes);
unprocessed plastics, polymers, including absorbent,
super-absorbent and soluble polymers, in particular absorber
polymers for use in the hygiene industry for making hygienic
articles and materials, absorber polymers for use in the
packaging industry for setting aqueous liquids of all kinds;
fertilisers (natural or artificial); fire extinguishing
compositions; tempering and chemical soldering preparations;
tanning substances. Sharpening preparations; perfumery; essential oils;
cosmetics, in particular skin cleansing preparations and
skin protection ointments (except shaving soaps, shaving
creams, shaving lotions, hair lotions, dentifrices).
63.
Process for producing an absorbent polymer by means of spread-drying
The process according to the invention for production of an absorbent polymer comprising the following process steps: i) polymerization of an aqueous monomer solution to obtain a polymer gel; ii) comminution of the polymer gel to obtain a gel granulate; and iii) drying of the gel granulate, and is characterized in that the gel granulate after step ii) has a spread behavior. The production process of an absorbent polymer distinguishes itself by a particularly efficient drying step iii), which enables a particularly gentle and uniform drying of the gel granulate. The obtained absorbent polymers and products and items produced therefrom have a particularly uniform product quality and constant physical-chemical properties.
01 - Chemical and biological materials for industrial, scientific and agricultural use
35 - Advertising and business services
Goods & Services
(1) Polymers for use in the agricultural, food packaging, cable manufacturing and fire protection industries.
(2) Fluid absorbent polymers for use in the construction industry. (1) Distributorship services in the field of polymers for use in the agricultural, food packaging, cable manufacturing, and fire protection industries.
(2) Distributorship services in the field of fluid absorbent polymers for use in the construction industry.
01 - Chemical and biological materials for industrial, scientific and agricultural use
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; agro-chemicals, artificial resins, all unprocessed (in the form of powders, liquids or pastes); unprocessed artificial resins, unprocessed plastics, polymers, including absorbent, super-absorbent and soluble polymers, in particular for use in the manufacture of energy and communications cables, for use in the construction industry, in particular in tunnel building and for use in fire-fighting as an additive to fire-fighting water; polymerisation resins for use in the food and packaging industries for binding aqueous liquids of all kinds; plastic polymers for use in agriculture, horticulture and forestry, soil-conditioning chemicals; manures; fire extinguishing agents and fire proofing preparations; tempering and soldering preparations; chemical substances for preserving foodstuffs and harvested crops; tanning substances; adhesives used in industry. Scientific and technological services and research, in particular scientific and technological consultancy in the field of absorbent polymers for use in fire protection, in the hygiene industry, the food and packaging industries, in agricultural chemistry, and in the field of vermin exterminating for agricultural, horticultural and forestry purposes, and in the construction industry, in particular for tunnel building; scientific and industrial research, in particular in the field of absorbent polymers for use in fire protection, in the hygiene industry, the food and packaging industries, in agricultural chemistry, and in the field of vermin exterminating for agricultural, horticultural and forestry purposes, and in the construction industry, in particular for tunnel building, industrial analysis and research, laboratory services, conducting chemical analysis. Agriculture, horticulture and forestry services; landscaping and lawn maintenance, spreading of fertilisers and other agricultural chemicals; vermin exterminating for agricultural purposes, weedkilling; farming equipment rental.
66.
Powdery water-absorbing polymers with fine particles bound by thermoplastic adhesives
a dust portion of at most about 6 are disclosed.
Also disclosed are a transport process, a composite, chemical products, and a use of a thermoplastic adhesive.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
C08L 33/02 - Homopolymers or copolymers of acidsMetal or ammonium salts thereof
distributorship services in the field of fluid absorbent polymers for use in the agricultural, food packaging, cable manufacturing, and fire protection industries
68.
Process for agglomeration of superabsorbent polymer fine particles
(B) cross-linking the uncrosslinked polymer by heating the superabsorbent polymer fine particles and the fluid to a temperature from about 20 to about 300° C., so that the cross-linkable, uncrosslinked polymer at least partially crosslinks.
A process for producing an absorbent polymer structure (Pa) by treating the outer portion of an untreated absorbent polymer structure (Pu1). The process includes the step of bringing the outer portion of the untreated absorbent polymer structure (Pu1) into contact with an aqueous solution including at least one chemical cross-linker and at least one inorganic compound in dispersed colloidal form. The process also includes the step of heating the absorbent polymer structure, of which the outer portion has been brought into contact with the aqueous solution, at a temperature within a range from about 40 to about 300° C., so that the outer portion of the absorbent polymer structure is more strongly cross-linked in comparison to the inner portion and the inorganic compound is at least partly immobilized in the outer portion of the absorbent polymer structure.
The invention relates to a washing apparatus, including a First Region (1) to which a wash material (4) is supplied, a Second Region (2), in which the wash material (4) is washed, and a Third Region (3), in which the wash material (4) is melted and a flow resistance (6), which is provided between the Second Region (2) and the Third Region (3), a purification apparatus, a synthesis device, a method for purifying a wash material, and the use of a washing apparatus or a purification apparatus for purifying and then using the target product obtained by the purification.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Fireproofing preparations and fire extinguishing mixtures and compounds; chemical compounds used to render surfaces slippery in order to prevent the movement of vehicles and persons for the purposes of riot control, security and police activity
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Fireproofing preparations and fire extinguishing mixtures and compounds; chemical compounds used to render surfaces slippery in order to prevent the movement of vehicles and persons for the purposes of riot control, security and police activity
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
Goods & Services
Chemicals used in industry, science and photography as well
as in agriculture, horticulture and forestry; chemical
substances for temporary or permanent sealing of earth
formations against inflow or drain of liquids and/or gases
during the exploration, exploitation and production of coal,
gas, oil, water and other mineral resources as well as for
sealing of buildings of all kinds in construction and civil
engineering; chemical substances for stationary and mobile
storage vessels for liquids, especially storage vessels for
drinking water; chemical substances for purification and
installations for sewage and refuse disposal sites;
unprocessed artificial resins and unprocessed plastics,
especially in the form of powder, liquids or pastes;
fertilizing preparations; fire extinguishing compositions
and fire proofing preparations; metal hardening and metal
soldering preparations; chemical substances for preserving
foodstuffs and crops; tanning substances; adhesives used in
industry. Rubber, gutta-percha, gum, asbestos, mica and goods made of
these materials as far as included in this class; plastics
in extruded form for use in manufacture, especially
artificial resins and synthetic resins, acrylic resins;
packing, stopping and insulating materials for temporary or
permanent sealing of earth formations against inflow and
drain of liquids and/or gases during the exploration,
exploitation and production of coal, gas, oil, water and
other mineral resources as well as for sealing of buildings
of all kinds in construction and civil engineering; packing,
stopping and insulating materials, especially as chemical
substances and products for stationary and mobile storage
vessels for liquids, especially storage vessels for drinking
water; packing, stopping and insulating materials,
especially as chemical substances and products for
purification installations for sewage and refuse disposal
sites; chemical compositions for repairing leaks; insulating
paints; substances for insulating all kinds of buildings
against moisture; flexible tubes, not of metal. Building materials, not of metal; asphalt, pitch and
bitumen.
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
19 - Non-metallic building materials
Goods & Services
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; artificial resins and plastics, all unprocessed, in particular in the form of powders, liquids or pastes; fertilizers; fire-extinguishing compositions and fireproofing preparations; tempering and soldering preparations; chemical substances for preserving foodstuffs and harvested crops; tanning substances. Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and included in class 17; plastics in extruded form for use in manufacture, in particular artificial resins and synthetic resins, acrylic resins; packing, stopping and insulating materials; in particular being chemicals and chemical agents for the temporary or permanent sealing of ground formations against the inflow or outflow of liquids and/or gases during the exploration, exploitation and production of coal, gas, oil, water and other mineral resources, and for sealing buildings of all types in structural and civil engineering, stationary and mobile storage containers for liquids, in particular drinking water storage tanks, sewage purification installations and waste dumps, chemical compositions for repairing leaks, insulating paints, materials for damp proofing for buildings of all types; flexible pipes, not of metal. Building materials (non-metallic); asphalt, pitch and bitumen.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Fire proofing preparations and fire extinguishing mixtures and compounds, chemical compounds for traction control namely chemical compounds used to render surfaces slippery in order to prevent the movement of vehicles and persons for the purposes of riot control, security and police activity.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Fire proofing preparations and fire extinguishing mixtures and compounds, chemical compounds for traction control namely chemical compounds used to render surfaces slippery in order to prevent the movement of vehicles and persons for the purposes of riot control, security and police activity.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Fire proofing preparations and fire extinguishing mixtures and compounds, chemical compounds fortraction control namely chemical compounds used to render surfaces slippery in order to prevent themovement of vehicles and persons for the purposes of riot control, security and police activity.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Fire proofing preparations and fire extinguishing mixtures and compounds, chemical compounds for traction control namely chemical compounds used to render surfaces slippery in order to prevent the movement of vehicles and persons for the purposes for riot control, security and police activity.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
(1) Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry, especially basic chemicals and chemical intermediates for use in agriculture, horticulture and forestry and for the manufacture of preparations for destroying vermin, rodenticides, molluscicides, fungicides, herbicides, insecticides, pesticides, nematicides, antiparasitic agents and for the manufacture of pharmaceutical, veterinary and sanitary preparations, soil-conditioning chemicals, agricultural chemicals; unprocessed artificial resins and unprocessed plastics, namely polymerisation resins, including absorbent and superabsorbent polymerisation resins, to bind all sorts of aqueous liquids and for use in agriculture, horticulture and forestry as well as for use in the manufacture of hygiene and sanitary products, for use in the manufacture of packaging and for use in the manufacture of power and communication cables; polymers, including absorbent, superabsorbent and soluble polymers for use in the manufacture of power and communication cables as well as for the hygiene industry, synthetic polymers for use in agriculture, forestry and horticulture; manures; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs and crops; tanning substances; adhesives for general industrial use.
(2) Pharmaceutical preparations for use in dermatology, namely, acne, dermatosis, dermatitis, ichthyosis, keratosis, neurodermatitis, pruritus, psoriasis, perianal skin disorders, seborrhea, skin pigmentation diseases, skin cancer and sexually transmitted diseases; pharmaceutical preparations, namely skin care preparations; veterinary and sanitary preparations for the treatment, cleaning and protection of the skin of human beings as well as the fur of animals; antiseptics; preparations for destroying vermin, rodenticides, molluscicides, fungisides, herbicides, insecticides, pesticides, nematicides, antiparasitic agents; plasters, namely medical plasters, sticking plasters for medical use; materials for dressings; material for stopping teeth, dental wax; disinfectants namely disinfectants for medical instruments, for contact lenses and for chemical toilets as well as all purpose disinfectants and pet disinfectants; cleaning preparations acting as disinfectant, detergents for medical purposes. (1) Scientific and industrial research, in particular in the field of farm chemicals, pesticides and vermin destroying preparations for agriculture, horticulture and forestry; laboratory services, namely chemical laboratory services, medical laboratory services as well as dental laboratory services.
(2) Services in the fields of agriculture, horticulture and forestry; namely veterinary services, agricultural services namely agricultural advice, plant nurseries and farm seeding by air; aerial and surface spreading of fertilizers and other agricultural chemicals; weed control analysis for agriculture, horticulture and forestry.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Produits chimiques destinés à l'industrie, aux sciences, à
la photographie, ainsi qu'à l'agriculture, l'horticulture et
la sylviculture; résines artificielles à l'état brut,
matières plastiques à l'état brut; polymères, y compris
polymères absorbants, superabsorbants et solubles, en
particulier pour la fabrication de câbles d'énergie et
d'information; engrais; compositions de protection contre
l'incendie et compositions extinctrices; produits chimiques
destinés à conserver les aliments.
01 - Chemical and biological materials for industrial, scientific and agricultural use
05 - Pharmaceutical, veterinary and sanitary products
42 - Scientific, technological and industrial services, research and design
Goods & Services
Chemicals used in industry, science, photography, agriculture, horticulture and forestry, in particular chemical base and intermediate products for use in agriculture and forestry and in horticulture and for manufacturing preparations for destroying vermin, rodenticides, molluscicides, fungicides, herbicides, insecticides, pesticides, nematicides and antiparasitic preparations, and for manufacturing pharmaceutical and veterinary products, including sanitary preparations; soil-conditioning chemicals, agrochemicals; artificial resins, all unprocessed (in the form of powders, liquids or pastes); unprocessed plastics, polymerisation resins, including absorbent and super-absorbent polymerisation resins, in particular for setting aqueous liquids of all types and for use in agriculture and forestry and in horticulture; polymers, including absorbent, super-absorbent and soluble polymers, in particular for use in the manufacture of power and communications cables and in the hygiene industry, plastic polymers for use in agriculture and forestry and in horticulture, fertilisers; fire extinguishing compositions; tempering and soldering preparations; chemical substances for preserving foodstuffs and harvested crops; tanning substances; adhesives used in industry. Pharmaceutical, veterinary and sanitary preparations; preparations for destroying vermin, rodenticides, preparations for destroying molluscs; fungicides, herbicides, insecticides, pesticides, nematicides, antiparasitic preparations; plasters, materials for dressings; material for stopping teeth, dental wax; disinfectants; cleaning preparations with disinfectant properties; detergents for medical purposes. Services in the field of agriculture and forestry and in horticulture; spreading of fertilisers and other agricultural chemicals; scientific and industrial research, in particular in the field of agricultural chemistry; vermin exterminating for agricultural, horticultural and forestry purposes; weed killing analyses for agriculture and forestry and for horticulture; laboratory services.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry;unprocessed artificial resins, unprocessed plastics, polymers, namely absorbent, super-absorbent and solublepolymers, in particular for use in the manufacture in energy and communication cables; fertilizers;fireproofing and fire extinguishing preparations; chemicals for preserving foodstuff.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
photographic polymer chemicals; polymer fertilizers and soil conditioners for agricultural or horticultural use; absorbent, super-absorbent and soluble polymer chemicals and plastic molding compounds for use in the manufacture of power and communication cables; fire extinguishing compositions
01 - Chemical and biological materials for industrial, scientific and agricultural use
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
Goods & Services
Chemicals used in industry, in particular auxiliary agents for the textile industry, for the chemical fibre industry, for the leather and fur industries, for industrial cleaning, for processing and for the chemico-technology industry; chemicals used in science and photography, as well as in agriculture, horticulture and forestry; artificial resins, all unprocessed (in the form of powders, liquids or pastes); unprocessed plastics, polymers, including absorbent, super-absorbent and soluble polymers, in particular absorber polymers for use in the hygiene industry for making hygienic articles and materials, absorber polymers for use in the packaging industry for setting aqueous liquids of all kinds; fertilisers (natural or artificial); fire extinguishing compositions; tempering and chemical soldering preparations; tanning substances. Sharpening preparations; perfumery; essential oils; cosmetics, in particular skin cleansing preparations and skin protection ointments (except shaving soaps, shaving creams, shaving lotions, hair lotions, dentifrices).
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial resins, unprocessed plastics, polymers, including absorbent, super-absorbent and soluble polymers, in particular for use in the manufacture of energy and communications cables; fertilizers; fireproofing and fire extinguishing preparations; chemical substances for preserving foodstuffs.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
absorbent polymers for the hygiene/sanitary industry in the production of hygiene articles, such as diapers, feminine hygiene products and incontinence products, and for the packaging industry to bind all sorts of aqueous liquids occuring in the packaging sector
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Chemical preparations and substances, absorbent and absorbent preparations and substances, bindingpreparations and substances, all for use in industry, namely, absorbent polymers for use in the hygiene andsanitary industries in the production of hygiene articles, diapers, feminine hygiene articles, and incontinencearticles, absorbent polymers for use in the packing and packaging industries for binding of aqueous liquids.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
ABSORBENT POLYMERS DESIGNED TO IMPROVE THE CAPABILITY OF SOILS TO HOLD WATER AND PLANT NUTRIENTS FOR AGRICULTURE; COMMERCIAL HORTICULTURE; LANDSCAPING; REFORESTATION AND LAND RECLAMATION; SOD AND TURF; PLANT TRANSPORTATION AND STORAGE USES
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
04 - Industrial oils and greases; lubricants; fuels
Goods & Services
Produits chimiques pour des buts galvano-techniques,
produits pour le trempage, contenant des enzymes, produits
pour le décreusage de la soie, agents pour imprégner,
assouplir et aviver les textiles, agents de débouillissage,
matières auxiliaires pour le mercerisage, agents d'encollage
et de désencollage, préparations d'amidon pour des buts
techniques, spécialement pour textiles, agents de foulage,
agents de matage pour l'industrie textile, ingrédients de
viscose, ingrédients pour bains de filature, agents
émulsionnants, préparations pour la décomposition des
graisses, matières à imprégner le papier, produits chimiques
pour l'industrie comme produits auxiliaires pour la
fabrication du papier et des cordes en papier, pour
l'industrie des crayons, pour la fabrication de fibres
synthétiques, pour la teinture et l'imprimerie, pour
produire et pour prévenir la mousse, pour la fabrication et
l'apprêtage de fourrures, pour l'épuration sèche et pour
l'apprêtage sec, émollients pour le cuir artificiel, le
caoutchouc artificiel et les laques, produits de déchaulage
pour l'industrie du cuir, dissolvants pour graisses, agents
de flottaison, produits extincteurs, succédanés de glycérine
pour des buts techniques, substances épilatoires (de
pelanage), apprêts, matières à tanner, liants pour fibres,
produits sulfonés et produits de condensation à base
d'huiles, de graisses, d'huiles minérales, d'alcools gras,
d'hydrocarbures aromatiques et aliphatiques ou de leurs
dérivés comme produits chimiques pour des buts industriels. Liants pour couleurs, matières à mordancer le cuir, mordants
pour l'industrie textile. Dissolvants pour graisses, matières à polir, à astiquer et à
conserver le cuir, cirages, matières de nettoyage et crème
pour le cuir, matières à nettoyer les planchers, cire à
parquet. Matières à conserver le cuir, agents de graissage et de
nourriture pour le cuir, dégras, huile rouge d'Andrinople,
émulsions d'huile.
01 - Chemical and biological materials for industrial, scientific and agricultural use
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
Goods & Services
Produits chimiques pour l'industrie, spécialement matières
auxiliaires pour l'industrie textile, pour l'industrie des
fibres synthétiques, pour l'industrie du cuir et des
fourrures, pour l'industrie de nettoyage, pour le traitement
et pour l'industrie chimico-technique, produits chimiques
pour buts scientifiques et photographiques, résines
synthétiques à l'état brut (sous forme de poudre, de pâte ou
de liquide); engrais fertilisants (naturels et artificiels);
produits extincteurs; trempes et produits chimiques pour la
soudure, matières à tanner, substances adhésives pour
l'industrie. Produits de parfumerie, huiles essentielles, cosmétiques,
spécialement produits pour nettoyer la peau et crème pour la
protection et les soins de la peau, crème à raser, mousse à
raser (excepté savon à barbe), lotions pour la barbe,
lotions pour les cheveux, dentifrices; abrasifs.
