Abstract

The invention relates to the use of a polysiloxane having a plurality of siloxane groups and at least one cyclic carboxylic anhydride group or the hydrolysis product thereof covalently linked to the polysiloxane, as a dispersing agent for solid particles in a non-aqueous composition.

IPC Classes  ?

• C08G 77/14 - Polysiloxanes containing silicon bound to oxygen-containing groups
• C08G 77/38 - Polysiloxanes modified by chemical after-treatment
• C08K 3/22 - OxidesHydroxides of metals
• C08L 83/06 - Polysiloxanes containing silicon bound to oxygen-containing groups

Abstract

A composite medium for collecting mineral particles in an aqueous slurry has a polymer substrate deposited or penetrated with an inorganic material and further coated with a hydrophobic material. The hydrophobic material can be a hydrophobic silane or a hydrophobic polymer such as polysiloxane. Alternatively, the inorganic material deposited substrate is first reacted with a reactive silane and then coated with a hydrophobic polymer. The polymer substrate can be in the form of a spherical bead, a small cube, a filter or a conveyor.

IPC Classes  ?

• B01D 37/02 - Precoating the filtering elements or materialAddition of filter aids to the liquid being filtered
• B01J 20/32 - Impregnating or coating

Abstract

The present invention provides a polymer or oligomer comprising: (a) an oligomeric or polymeric core comprising carbon atoms and at least one of oxygen atoms and nitrogen atoms, and (b) at least three hydrocarbyl terminal and/or pending groups having 12 to 100 carbon atoms, wherein the hydrocarbyl groups are linked to the core via (c) a linking moiety comprising i) a urethane group and ii) a further group selected from urethane group, urea group, and biuret group. The present invention further relates to the use the polymer or oligomer for improving the cold flow properties of hydrocarbon based fluids, to a method of decreasing the amount of solid precipitate in a hydrocarbon based fluid, to a composition comprising the polymer or oligomer and a hydrocarbon based fluid, and to a process of preparing the polymer or oligomer.

IPC Classes  ?

• C08G 63/91 - Polymers modified by chemical after-treatment
• C08G 69/48 - Polymers modified by chemical after-treatment
• C08G 73/02 - Polyamines
• C08G 73/04 - Polyamines derived from alkyleneimines
• C10L 1/2383 - Polyamines or polyimines, or derivatives thereof
• C10M 159/12 - Reaction products

Abstract

The present invention relates to a urea and urethane group containing product comprising one or more species of formula (I) R1-O-(C=O)-NH-R2-NH-(C=O)-NH-R3-NH-[-(C=O)-NH-R4-NH-(C=O)-NH-R3- NH-]n-(C=O)-NH-R2-NH-(C=O)-O-R1 (I), wherein R1 independently represents a non-aromatic hydrocarbyl group having 14 to 30 carbon atoms; R2 independently represents alkyl-substituted aromatic hydrocarbyl groups having 7 to 12 carbon atoms; R3 independently represents hydrocarbyl groups having 2 to 36 carbon atoms, which can be interrupted by 1 to 17 ether oxygen atoms in case of aliphatic hydrocarbyl groups; R4 independently represents hydrocarbyl groups having 2 to 36 carbon atoms; n is an integer from 0 to 200; and wherein on average from 40 mol-% to 100 mol-% of all R3 and R4 groups contained in the one or more species of formula (I) are acyclic aliphatic hydrocarbyl groups which, in case of R3, can be interrupted by 1 to 17 ether oxygen atoms. The invention further relates to a method of manufacturing such product, liquid compositions containing such products and the use of the liquid compositions as rheology control additive, preferably as anti-settling agent. Furthermore, the present invention relates to a process for rheology adjustment, comprising the step of adding such liquid composition to a variety of compositions and formulations.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
• C08G 18/32 - Polyhydroxy compoundsPolyaminesHydroxy amines
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 18/80 - Masked polyisocyanates
• C09D 7/43 - Thickening agents

Abstract

The invention relates to a drilling fluid in the form of a water-in-oil (W/O) emulsion comprising at least components (A) to (D), wherein component (D) is at least one (meth)acrylic copolymer, which contains at least one of structural units (D1), (D2) and (D3) to introduce at least one hydroxyl and/or amino functionality into the copolymer and which further contains at least one structural unit (D4), a use of said(meth)acrylic copolymer as rheological agent in drilling fluids, which are water-in-oil (W/O) emulsions, as well as to a method of producing oil and/or natural gas or of preparing the production thereof comprising the step of using the inventive drilling fluid for generating and/or operating a drill hole.

IPC Classes  ?

• C08F 220/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof
• C09K 8/36 - Water-in-oil emulsions

Abstract

An organoclay composition which is a mineral clay or mineral clay mixture that has been treated with at least organic quaternary ammonium compound and a synergist comprising (i) an amine salt of a trimer acid, and (ii) an amine salt of a monocarboxylic fatty acid. The monocarboxylic fatty acid may be (a) at least one saturated carboxylic acid; and/or (b) at least one unsaturated carboxylic acid.

IPC Classes  ?

• C09K 8/035 - Organic additives
• C09K 8/32 - Non-aqueous well-drilling compositions, e.g. oil-based
• C09K 8/64 - Oil-based compositions

Abstract

Provided is use of a mixed mineral organoclay rheology additive. The additive comprises a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by combining an aqueous hormite clay slurry with an aqueous smectite clay slurry to form a combined clay slurry, treating the combined clay slurry with a quaternary alkyl-ammonium salt, and separating the resulting treated clay mixture from the aqueous medium. The hormite clay contains less than 3.0 % by weight of A1203, less than 1.0 % by weight of Fe203, and less than 3.5 % by weight of total A1203 and Fe203. The weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry. Also provided is use of the additive as a thickening agent in liquid compositions.

IPC Classes  ?

• C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 3/34 - Silicon-containing compounds
• C08K 5/19 - Quaternary ammonium compounds
• C08K 9/04 - Ingredients treated with organic substances
• C09C 1/42 - Clays

Abstract

Provided is use of mixed mineral organoclay rheology additive(s), including a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the slurries to form slurry (c), treating slurry (c) with quaternary alkyl-ammonium salt(s), separating the treated mixture from the aqueous medium, in which slurries (a) and (b) are formed by dispersing a fraction of hormite clay(s) or smectite clay(s), respectively, in an aqueous medium, the weight of the hormite clay content exceeds that of the smectite clay in slurry (c); and subjecting the dispersions to high speed fluid shear before and/or after step iii.; wherein the fraction of one or more hormite clays employed in forming slurry (a) has a defined integral breadth B, in a liquid composition comprising unsaturated polyester(s). Also provided is a process for producing a mixed mineral organoclay rheology additive.

IPC Classes  ?

• C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
• C08K 3/34 - Silicon-containing compounds
• C08L 67/06 - Unsaturated polyesters

Abstract

Provided is use of a mixed mineral organoclay rheology additive, which comprises a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by combining an aqueous hormite clay slurry with an aqueous smectite clay slurry to form a combined clay slurry, treating the combined clay slurry with a quaternary alkyl-ammonium salt, and separating the resulting treated mineral clay mixture from the aqueous medium. The weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry. The hormite clay exhibits a methylene blue exchange capacity below 20 mmol methylene blue per 100 g of the hormite clay in dry state. Also provided is a process for producing a mixed mineral organoclay rheology additive and the use of the additive as a thickening agent in liquid compositions.

IPC Classes  ?

• C01B 33/04 - Hydrides of silicon
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 3/34 - Silicon-containing compounds
• C08K 5/19 - Quaternary ammonium compounds
• C08K 9/04 - Ingredients treated with organic substances

Abstract

The present application relates to a process of manufacturing specialized thickeners and the use of thus produced thickeners in high-viscosity non-aqueous formulations. The application particularly relates to the use of the thus produced thickeners in modifying the rheology of non-aqueous formulations. In this respect, provided is a reliable process of producing an organoclay based rheology additive with a higher performance compared to structurally related organoclay additives known from the state of the art, which show a universal versatility in various e.g. non-aqueous formulations. The mixed mineral organoclay rheology additives as produced according to the present invention are particularly suitable for thickening a broad variety of liquid compositions, and are apt to provide a superior viscosity to binder containing formulations.

IPC Classes  ?

• C01B 33/44 - Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
• C08K 3/34 - Silicon-containing compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 67/06 - Unsaturated polyesters

Abstract

The invention relates to an emulsion containing or consisting of (A) 40.00 to 97.98 wt.% of at least one hydrocarbon, (B) 2.00 to 59.98 wt.% water or an aqueous solution of a salt, which does not fall under the following definition according to (C), and (C) 0.02 to 8.00 wt.% of a salt from an amino amide of a fatty acid, containing at least one primary, secondary or tertiary amino group, and an acid component of general formula (I), in which R1 is a linear or branched, saturated or mono- or polyunsaturated hydrocarbon group with 1 to 40 C-atoms, R2 is an alkylene or arylalkylene group with 2 to 20 C-atoms, and X is a group containing at least one acid group, where m = 0 or 1, n = 1 to 30, wherein the weight proportions of the components (A), (B) and (C) relate to the sum of the masses of these components and this is 100 wt.%. The invention also relates to a method for producing the emulsion, an oil-based drilling fluid and a method for creating and stabilising a drill hole.

IPC Classes  ?

• C09K 8/36 - Water-in-oil emulsions
• C09K 23/00 - Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
• C09K 23/22 - Amides or hydrazides
• E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Abstract

The present invention relates to biuret compounds of the general formula (see above formula) in which R1 is C2-C18 alkylene, cycloalkylene, arylene or aralkylene, Y is -O- and/or -NH-, R2 is C4-C22 alkyl, C3-C18 alkenyl, cycloalkyl, aralkyl, C m H2m+1 (O-C n H2n) x- (O-CH (C6H5) -CH2) u-, C m H2m+1 (OOC-C v H2v) x-, X- C6H4- (O-C n H2n) x- (O-CH (C6H5) -CH2) u-, where m = 1-22, n = 2-4, x = 0-15, u = 0-15, v = 4-5, X is C1-C12 alkyl, -(C6H5) 1-4 and R3, R4 and R5 are C2-C18 alkylene, cycloalkylene, arylene or aralkylene, it being possible for R3, R4 and R5 to be identical or different, Z is -COO-, NHCO-, NHCOO-, NHCONH- and/or mixtures thereof and a is 1-20. The invention also relates to a process for preparing biuret compounds and to their use as rheology control agents. The invention further relates to urethane- and/or urea-containing uretdiones which are useful intermediates for preparing the biuret compounds.

IPC Classes  ?

• C07C 275/62 - Y being a nitrogen atom, e.g. biuret
• C09D 5/04 - Thixotropic paints

Abstract

The invention relates to surface-modified nanoparticles composed of metal or semimetal oxides or hydroxides and having been reacted on their surface with a modifier, with formation of covalent bonds. The modifier is a polysiloxane. The invention also relates to a process for preparing the nanoparticles, to their use as fillers in coating materials, plastics, foams and nail varnishes, and to dispersions which comprise the nanoparticles.

IPC Classes  ?

• B01J 2/00 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic
• B82B 1/00 - Nanostructures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
• B82B 3/00 - Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C09C 3/12 - Treatment with organosilicon compounds
• C09K 3/00 - Materials not provided for elsewhere

Abstract

The invention relates to addition compounds which are obtainable by reacting a) one or more polyisocyanates containing uretdione groups with b) one or more compounds of the formula (I) Y-(XH)n (I) where XH is a group that is reactive towards isocyanates and Y is a monomeric or polymeric group that is not reactive towards isocyanates and which comprises one or more aliphatic, cycloaliphatic, araliphatic and/or aromatic groups, Y possessing a number-average molar mass of less than 20 000 g/mol, and n is 1, 2 or 3, and for at least 50 mol% of the compounds of the formula (I) it is the case that n = 1, with the proviso that substantially all free isocyanate groups of component a) are reacted with the compounds of the formula (I) to give an intermediate which contains uretdione groups, and subsequently the uretdione groups are reacted with c) one or more compounds of the general formula (II) Z-NHR (II) in which R is hydrogen or a straight-chain or branched alkyl group having 1 to 4 carbon atoms and Z is an aliphatic, cycloaliphatic and/or aromatic basic radical and, if desired, after this reaction, reacting any reactive amino groups still present in the reaction - 56 - product with compounds that are reactive towards amino groups; and also salts or quaternization products of the addition compounds. The invention further relates to a process for preparing the addition compounds and to their use, particularly as dispersion stabilizers and dispersants.

IPC Classes  ?

• C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• C08G 18/72 - Polyisocyanates or polyisothiocyanates
• C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
• C09B 67/08 - Coated particulate pigments or dyes

Abstract

The invention relates to addition compounds suitable for use as wetting agents and dispersants and obtainable by reacting monofunctional or polyfunctional aromatic epoxides with polyoxyalkylenemonoamines having a number-average molecular weight of > 400 g/mol, one primary or secondary amino group and at least 4 ether oxygens per molecule, from 90 to 100% of the epoxide groups of the starting material having undergone reaction, the weight fraction of aromatic groups in the addition compounds being not more than 50% and the addition compounds containing per molecule at least one amino group on which salts can be formed, or being present as a salt. The invention also relates to a process for preparing the addition compounds, to their use as wetting agents and/or dispersants and to pigments or fillers coated with the addition compounds and to pigment pastes which comprise pigments, binders and the addition compounds of the invention.

IPC Classes  ?

• C08G 59/14 - Polycondensates modified by chemical after-treatment
• C08G 59/18 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
• C08G 59/50 - Amines
• C08G 73/02 - Polyamines
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C09C 3/08 - Treatment with low-molecular-weight organic compounds
• C09C 3/10 - Treatment with macromolecular organic compounds
• C09D 17/00 - Pigment pastes, e.g. for mixing in paints
• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins