Provided are a resin composition and a molded article which are less apt to generate isocyanate gas and which contain few foreign particles and hence have better surface appearance. The resin composition comprises a polyester resin (A) and one or more carbodiimide compounds, wherein the carbodiimide compounds include a carbodiimide compound (B) represented by general formula (1). When the surface of a molded article comprising the resin composition is examined with an optical microscope, the number of observed foreign particles each having an area of 100 μm2or larger is less than 10 per 100 cm2.
A polycarbodiimide compound, which is a reaction product of a polycarbodiimide (a) having an isocyanate group at both ends, obtained by polymerizing at least one selected from aliphatic diisocyanate and alicyclic diisocyanate, and a polymer (b) that is a polymer of at least one selected from butadiene and isoprene or a hydrogenated product thereof and has a functional group capable of reacting with an isocyanate group.
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08F 285/00 - Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
C08F 299/06 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes
C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
C08G 18/67 - Unsaturated compounds having active hydrogen
NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY (Japan)
NISSHINBO CHEMICAL INC. (Japan)
JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY (Japan)
Inventor
Kasuya, Ken-Ichi
Suzuki, Miwa
Ota, Minori
Gonda, Kohei
Tachibana, Yuya
Kotani, Saori
Taniguchi, Akira
Fukase, Atsuko
Ishii, Shunichi
Kashima, Hiroyuki
Abstract
The present invention addresses the problem of developing a technique for accelerating the marine biodegradation rate of a biodegradable resin. The present invention provides a marine biodegradation rate accelerator for a biodegradable resin, the accelerator comprising 16-hydroxyhexadecanoic acid.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
This separator for fuel cells, which is obtained by molding a resin composition that contains a graphite powder having a cumulative particle diameter distribution d10 of 10-20 μm and a volume porosity of 12-30 cm3/100 g as measured by ASTM D6086 at a measurement pressure of 30 MPa, and an epoxy resin component containing a main agent, a curing agent, and a curing accelerator, is excellent in terms of hydrogen gas impermeability, electrical conductivity, and mechanical characteristics even if obtained by compression molding in a short time.
This precursor sheet for a fuel cell separator contains graphite particles, a particulate or fibrous water-insoluble resin, and a water-soluble resin. The precursor sheet can be reverted to a slurry in an aqueous solvent, and thus it is possible to reuse defective articles and waste material generated during processing.
A manufacturing method of a precursor for a regenerated fuel cell separator includes: a step of preparing a slurry by mixing a precursor for a fuel cell separator containing graphite particles and a water-soluble resin with an aqueous solvent; and a step of drying the slurry. The manufacturing method uses a reusable material as precursor for the fuel cell separator, for example defective articles obtained during manufacturing and waste material generated during processing.
Provided are: a sleeper pad with which it is possible to sufficiently and stably obtain adhesive strength between the sleeper pad and a concrete sleeper; and an elastic sleeper comprising the same. This sleeper pad includes: a pad body 5 comprising an elastic body; and an anchor member 4 joined to one surface of the pad body 5. The anchor member 4 is a sheet formed by integrating a mesh outer material and a mesh lining material by joining the two materials with a joining thread for joining same.
E01B 3/46 - Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from different materials
E01B 3/28 - Transverse or longitudinal sleepersOther means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
E01B 9/68 - Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
8.
PRECURSOR SHEET FOR FUEL CELL SEPARATOR, AND FUEL CELL SEPARATOR
This precursor sheet for a fuel cell separator contains graphite particles, a particulate or fibrous water-insoluble resin, and a water-soluble resin. The content of the water-soluble resin is 0.8-18.0 parts by mass per 100 parts by mass of the graphite particles. The content of the particulate or fibrous water-insoluble resin is 19.0-63.0 parts by mass per 100 parts by mass of the graphite particles. The precursor sheet can be reverted into a slurry in an aqueous solvent, and thus it is possible to reuse defective articles and waste material generated during processing is made possible, and a separator that exhibits good strength, low volume resistivity, and high gas impermeability is obtained.
A fuel cell separator obtained by molding a composition containing graphite powder and an epoxy resin component containing a main agent, a curing agent, and a curing accelerator, in which the average particle diameter d50 of the graphite powder is 20 to 80 μm, and the average height of the graphite powder measured using a laser microscope is 30 to 70% of the average particle diameter d50, has good bending strength and bending fatigue characteristics even in an environment of 70° C.
NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY (Japan)
Inventor
Sasaki, Takahiro
Kotani, Saori
Taniguchi, Akira
Fukase, Atsuko
Kasuya, Ken-Ichi
Tachibana, Yuya
Ohta, Yukari
Abstract
A biodegradable resin composition is usable for producing a molded article having high biodegradability particularly in the ocean. The biodegradable resin composition contains a biodegradable resin and one or more components selected from agarose, sodium alginate, casein, and keratin. The content of the biodegradable resin is 50% by weight or more.
This carbodiimide composition is characterized by comprising a carbodiimide compound (A), a phosphite-based antioxidant (B), and a hindered phenol-based antioxidant (C), and is characterized in that the phosphite-based antioxidant (B) is contained in an amount of 1.5-5 parts by mass with respect to 100 parts by mass of the carbodiimide compound (A), and the hindered phenol-based antioxidant (C) is contained in an amount of 1.5-6 parts by mass with respect to 100 parts by mass of the carbodiimide compound (A). The carbodiimide composition can suppress foaming in a resin during molding, and provides a resin molded article having excellent hydrolysis resistance.
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
This biodegradable resin composition contains a biodegradable resin (A), a powdery substance (B) derived from animals or plants, and a component (C). The biodegradable resin (A) is at least one selected from the group consisting of thermoplastic starch, polybutylene adipate terephthalate, polylactic acid, polybutylene succinate, polybutylene succinate adipate, polycaprolactone, and polyhydroxyalkanoic acid. The component (C) is at least one component selected from the group consisting of a compound (X) and a plasticizer. The compound (X) is a compound containing at least one functional group selected from the group consisting of an epoxy group and a carbodiimide group.
This biodegradable resin composition comprises a biodegradable resin, the biodegradable resin composition including one or more components selected from the group consisting of soybean-derived substances and wheat bran, wherein the biodegradable resin is a polybutylene adipate terephthalate.
Provided is a member for exposure device, including glass-like carbon. Also, provided is a method for producing the member for exposure device, the method comprising: the step of forming a thermosetting resin material to prepare a resin formed body, and the step of carbonizing the resin formed body to obtain a glass-like carbon body. Also provided is a composite member for exposure device, including the member for exposure device.
G03F 1/64 - Pellicles or pellicle assemblies, e.g. having membrane on support framePreparation thereof characterised by the frames, e.g. structure or material thereof
C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
15.
Precursor sheet for fuel cell separator, and fuel cell separator
3 or greater when compressed at 30 MPa. This precursor sheet for a fuel cell separator provides a fuel cell separator that has excellent shapability and good mechanical strength, conductivity, and gas impermeability.
Provided is an air-blast abrasion material comprising a carbon powder having a new Mohs hardness of 2.5-7.0. The air-blast abrasion material does not readily remain on the surface of an object being blasted, and therefore, little residue of the abrasion material remains on the surface of a fuel cell separator in which at least part of the surface is subjected to roughening treatment using the air-blast abrasion material.
B24C 11/00 - Selection of abrasive materials for abrasive blasts
B24C 1/06 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
B24C 3/32 - Abrasive blasting machines or devicesPlants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
A polycarbodiimide compound that is a reaction product of a polycarbodiimide (a) having isocyanate groups at both ends, obtained by polymerizing at least one selected from aliphatic diisocyanates and alicyclic diisocyanates, and a polymer (b) that is a polymer of at least one selected from butadiene and isoprene or a hydrogenated product thereof and has a functional group capable of reacting with an isocyanate group.
C08F 299/06 - Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes
C08G 18/62 - Polymers of compounds having carbon-to-carbon double bonds
C08G 18/67 - Unsaturated compounds having active hydrogen
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Chemicals; glue and adhesives for industrial purposes; plant
growth regulating preparations; fertilizers; reagent paper
[not for medical purposes]; plastics [raw materials]; waste
water treatment chemicals for industrial purposes; waste
water treatment chemicals for industrial use; chemical
agents used in treating marine bilge water; chemical agents
for the treatment of bilge water; chemicals for the
treatment of irrigation water; water treatment chemicals;
chemicals for use in the treatment of water; chemicals for
treating water; chemical preparations for the treatment of
water; water treatment chemicals for use in swimming pools
and spas; chemicals for use in the treatment of waste water;
wastewater treatment chemicals; chemicals for the treatment
of hot water systems. Plastic semi-worked products; extruded plastics in the form
of pellets for use in manufacture; thermoplastic compounds
in pellet form for use in manufacture; filtering materials
of semi-processed foams of plastic; low-density polyurethane
foam for insulation; plastic semi-worked products made from
urethane materials; plastic substances in the form of
sponges for use in manufacture [semi-finished products];
filtering materials of semi-processed foams of plastic;
semi-processed foamed plastics; plastic foam as plastic
semi-worked products; plastic foam semi-worked products;
foamed polymer plastic, semi-processed; plastic semi-worked
products in pellet and powder form; plastic semi-worked
products in cylindrical, pellet, rod, tube, wire, film,
plate and foil form.
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Chemicals; glue and adhesives for industrial purposes; plant
growth regulating preparations; fertilizers; reagent paper
[not for medical purposes]; plastics [raw materials];
preparations of microorganisms, other than for medical and
veterinary use; waste water treatment chemicals for
industrial purposes; waste water treatment chemicals for
industrial use; chemical agents used in treating marine
bilge water; chemicals for the treatment of irrigation
water; water treatment chemicals; chemicals for use in the
treatment of water; chemicals for treating water; chemical
preparations for the treatment of water; water treatment
chemicals for use in swimming pools and spas; chemicals for
use in the treatment of waste water; wastewater treatment
chemicals; chemicals for the treatment of hot water systems. Plastic semi-worked products; extruded plastics in the form
of pellets for use in manufacture; thermoplastic compounds
in pellet form for use in manufacture; filtering materials
of semi-processed foams of plastic; low-density polyurethane
foam for insulation; plastic semi-worked products made from
urethane materials; plastic substances in the form of
sponges for use in manufacture [semi-finished products];
filtering materials of semi-processed foams of plastic;
semi-processed foamed plastics; plastic foam as plastic
semi-worked products; plastic foam semi-worked products;
foamed polymer plastic, semi-processed; plastic semi-worked
products in pellet and powder form; plastic semi-worked
products in cylindrical, pellet, rod, tube, wire, film,
plate and foil form.
20.
CROSSLINKING AGENT FOR WATER-COMPATIBLE RESIN, LIQUID CONTAINING CROSSLINKING AGENT FOR WATER-COMPATIBLE RESIN, WATER-COMPATIBLE-RESIN COMPOSITION, CURED FILM, AND ARTICLE
Provided is a waterborne resin crosslinking agent and the like capable of obtaining a waterborne resin crosslinking agent-containing liquid excellent in storage stability and the like as well as a cured film (waterborne resin coating film) with sufficiently high gloss (relative-specular glossiness). The waterborne resin crosslinking agent including a polycarbodiimide compound (A) and a polycarbodiimide compound (B), wherein the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of more than 350, the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a compound having a molecular weight of 250 or less, represented by the following formula (1):
Provided is a waterborne resin crosslinking agent and the like capable of obtaining a waterborne resin crosslinking agent-containing liquid excellent in storage stability and the like as well as a cured film (waterborne resin coating film) with sufficiently high gloss (relative-specular glossiness). The waterborne resin crosslinking agent including a polycarbodiimide compound (A) and a polycarbodiimide compound (B), wherein the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of more than 350, the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a compound having a molecular weight of 250 or less, represented by the following formula (1):
R1(OCHR2CH2)mOH (1)
Provided is a waterborne resin crosslinking agent and the like capable of obtaining a waterborne resin crosslinking agent-containing liquid excellent in storage stability and the like as well as a cured film (waterborne resin coating film) with sufficiently high gloss (relative-specular glossiness). The waterborne resin crosslinking agent including a polycarbodiimide compound (A) and a polycarbodiimide compound (B), wherein the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of more than 350, the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a compound having a molecular weight of 250 or less, represented by the following formula (1):
R1(OCHR2CH2)mOH (1)
wherein R1 is an alkyl group, cycloalkyl group, or aryl group having 1 to 13 carbon atoms, R2 is a hydrogen atom, a methyl group, an ethyl group, or a propyl group, and m is a numeral of 1 to 4, and the polycarbodiimide compound (A) is in an amount of 5 to 95 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B).
C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
C09D 11/107 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
Provided is a waterborne resin crosslinking agent, as well as a waterborne resin crosslinking agent-containing liquid and a waterborne resin composition, including the waterborne resin crosslinking agent. The waterborne resin crosslinking agent of the present invention includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which the isocyanate groups at both terminals are each capped with a predetermined hydrophilic organic compound; the polycarbodiimide compound (B) has, as a structural unit, a diisocyanate compound having one cyclohexyl ring or one benzene ring, and has a structure in which the isocyanate groups at both terminals are each capped with a predetermined organic compound, and the polycarbodiimide compound (A) is in an amount of 5 to 90 parts by mass per 100 parts by mass in total of the polycarbodiimide compounds (A) and (B).
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
A waterborne resin crosslinking agent is provided, wherein the waterborne resin crosslinking agent of the present invention includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which the isocyanate groups at both terminals are each capped with a predetermined hydrophilic organic compound; the polycarbodiimide compound (B) has a chain diisocyanate compound as a structural unit, and has a structure in which the isocyanate groups at both terminals are each capped with a predetermined organic compound, and the polycarbodiimide compound (A) is in an amount of 5 to 90 parts by mass per 100 parts by mass in total of the polycarbodiimide compounds (A) and (B).
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Provided is a waterborne resin crosslinking agent and the like capable of inhibiting lowering of gloss (relative specular glossiness) of cured films (waterborne resin coating films) after heating. The waterborne resin crosslinking agent includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of 340 or more; the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a monool compound having 3 to 18 carbon atoms; when the monool compound has 3 to 17 carbon atoms, the polycarbodiimide compound (A) is in an amount of 5 to 95 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B); and when the monool compound has 18 carbon atoms, the polycarbodiimide compound (A) is in an amount of 30 to 70 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B).
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
This precursor sheet for a fuel cell separator comprises a conductive substrate sheet, a dense layer including first graphite particles, and a conduction layer including second graphite particles, wherein the dense layer and the conduction layer include a resin, the first graphite particles have a volume resistivity of 20 mΩ∙cm or greater and a bulk density of 1.7 g/cm3or greater when compressed at 30 MPa, and the second graphite particles have a volume resistivity of less than 20 mΩ∙cm and a bulk density of 1.5 g/cm3 or greater when compressed at 30 MPa. This precursor sheet for a fuel cell separator provides a fuel cell separator that has excellent shapability and good mechanical strength, conductivity, and gas impermeability.
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
D21H 19/38 - Coatings with pigments characterised by the pigments
D21H 19/82 - Paper comprising more than one coating superposed
D21H 27/00 - Special paper not otherwise provided for, e.g. made by multi-step processes
A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an organic alkali metal compound (B) having Lewis basicity.
C07C 269/02 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups from isocyanates with formation of carbamate groups
B01J 31/04 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
B01J 31/12 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
Provided are: a microorganism-fixing carrier for water treatment, the microorganism-fixing carrier having exceptional durability while maintaining organic wastewater treatment performance; and a method for producing the microorganism-fixing carrier for water treatment. In the microorganism-fixing carrier for water treatment according to the present invention, at least part of the peripheral side surface of a columnar body 1 made of soft polyurethane foam is coated with a coating member 2 that is harder than the soft polyurethane foam.
Provided is a microorganism-immobilized carrier for water treatment, which has excellent durability while maintaining organic wastewater treatment performance. The microorganism-immobilized carrier for water treatment according to the present invention comprises an integral form of a flexible polyurethane foam and a rigid member which is harder than the flexible polyurethane foam, wherein the flexible polyurethane foam has a swelling density of 20-70 kg/m3 when swollen with water, an average pore number of 2-8 pores/5 mm when swollen with water, and a volume swelling ratio of more than 100% and 1,000% or less when swollen with water.
A fuel cell separator obtained by molding a composition containing graphite powder and an epoxy resin component containing a main agent, a curing agent, and a curing accelerator, in which the average particle diameter d50 of the graphite powder is 20 to 80 µm, and the average height of the graphite powder measured using a laser microscope is 30 to 70% of the average particle diameter d50, has good bending strength and bending fatigue characteristics even in an environment of 70°C.
A crosslinking agent composition for water-compatible resins which comprises a hydrophobic crosslinking agent, a water-soluble organic compound, one or more oily media selected from among hydrocarbon-based solvents and ketone-based solvents having a solubility parameter of 9.0 (cal/cm−3)1/2 or less, and an aqueous medium. The crosslinking agent composition can improve the storage stability of a water-compatible resin composition. The water-compatible resin composition which contains this crosslinking agent composition can give cured objects satisfactory in terms of water resistance and solvent resistance and is suitable also for use in wet-on-wet coating.
There is provided a compatibilizer for polyester resin which can produce better compatibility than conventional counterparts, and a polyester resin composition using the compatibilizer. The compatibilizer comprises a polycarbodiimide compound represented by the formula (1) describe below wherein the carbodiimide equivalent of the polycarbodiimide compound is 280 or higher; and in the formula (1), R1 and R2 are residues formed by eliminating a functional group from an organic compound having the one functional group reactive with an isocyanate group; R3 is a divalent residue formed by eliminating two isocyanate groups from a diisocyanate compound; R4 is a divalent residue formed by eliminating two hydroxyl groups from a diol compound; X1 and X2 are bonds formed by reaction of the functional group of the organic compound with one of the two isocyanate groups of the diisocyanate compound; and m and n=1 to 20, m+n≤25, and p=0 to 39, provided that the number of carbodiimide groups in one molecule is 2 to 40.
There is provided a compatibilizer for polyester resin which can produce better compatibility than conventional counterparts, and a polyester resin composition using the compatibilizer. The compatibilizer comprises a polycarbodiimide compound represented by the formula (1) describe below wherein the carbodiimide equivalent of the polycarbodiimide compound is 280 or higher; and in the formula (1), R1 and R2 are residues formed by eliminating a functional group from an organic compound having the one functional group reactive with an isocyanate group; R3 is a divalent residue formed by eliminating two isocyanate groups from a diisocyanate compound; R4 is a divalent residue formed by eliminating two hydroxyl groups from a diol compound; X1 and X2 are bonds formed by reaction of the functional group of the organic compound with one of the two isocyanate groups of the diisocyanate compound; and m and n=1 to 20, m+n≤25, and p=0 to 39, provided that the number of carbodiimide groups in one molecule is 2 to 40.
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
Provided are a polycarbodiimide compound that enables an aqueous resin composition capable of forming a coating (layer) having water resistance and adhesion that can withstand use for food packaging to be obtained, an aqueous resin composition containing the polycarbodiimide compound, and a food packaging having a layer formed of the aqueous resin composition. A polycarbodiimide compound (A) represented by formula (1) below,
2 each may be the same or different.
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
A modified polycarbodiimide compound which is obtained by modifying at least some of carbodiimide groups in a polycarbodiimide derived from a diisocyanate compound, said polycarbodiimide having a terminal blocked with a hydrophilic compound, with an aromatic heterocyclic compound such as 3,5-dimethylpyrazole having endocyclic secondary amine nitrogen has a potential for a cuing agent, and exhibits the activity of the carbodiimide groups by being unblocked at relatively low temperatures.
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY (Japan)
Inventor
Sasaki, Takahiro
Kotani, Saori
Taniguchi, Akira
Fukase, Atsuko
Kasuya, Ken-Ichi
Tachibana, Yuya
Ohta, Yukari
Abstract
Provided is a biodegradable resin composition that can be used particularly for the production of a molded article having high marine biodegradability. In particular, provided is a biodegradable resin composition which contains a biodegradable resin and one or more components selected from the group consisting of agarose, sodium alginate, casein, and keratin, and has a biodegradable resin content of 50 wt% or greater.
C08L 101/00 - Compositions of unspecified macromolecular compounds
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
This carbodiimide composition is characterized by comprising a carbodiimide compound (A), a phosphite-based antioxidant (B), and a hindered phenol-based antioxidant (C), and is characterized in that the phosphite-based antioxidant (B) is contained in an amount of 1.5-5 parts by mass with respect to 100 parts by mass of the carbodiimide compound (A), and the hindered phenol-based antioxidant (C) is contained in an amount of 1.5-6 parts by mass with respect to 100 parts by mass of the carbodiimide compound (A). The carbodiimide composition can suppress foaming in a resin during molding, and provides a resin molded article having excellent hydrolysis resistance.
C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
35.
MICROORGANISM-IMMOBILIZED CARRIER FOR WATER TREATMENT, FLEXIBLE POLYURETHANE FOAM COMPOSITION, AND METHOD FOR PRODUCING FLEXIBLE POLYURETHANE FOAM
The present invention provides: a microorganism-immobilized carrier for water treatment, the microorganism-immobilized carrier exhibiting good hydrophilicity, good water swellability and excellent wear resistance, while having improved microorganism adhesion; a flexible polyurethane foam composition which is used for the production of this microorganism-immobilized carrier for water treatment; and a method for producing a flexible polyurethane foam. A microorganism-immobilized carrier for water treatment according to the present invention is formed of a flexible polyurethane foam which contains a graphite powder and a polyurethane resin, wherein the content of the graphite powder is less than 100 parts by mass relative to 100 parts by mass of the polyurethane resin.
Provided is a polyester resin composition that exhibits excellent hydrolysis resistance and generates little isocyanate gas when heated during melt kneading and molding. The polyester resin composition contains a polyester resin (A) and a carbodiimide compound (B) having a specific structure. The content of the carbodiimide compound (B) is 0.1 to 5 parts by mass relative to a total of 100 parts by mass of the polyester resin (A) and the carbodiimide compound (B).
Provided is a member for an exposure device, the member containing a glassy carbon. Also provided is a manufacturing method for a member for an exposure device, the method including: a molding step for molding a thermosetting resin material and thereby producing a resin molded body; and a calcining step for calcining the resin molded body and thereby obtaining a glassy carbon body. Further provided is a composite member for an exposure device, said member including the abovementioned member for an exposure device.
G03F 1/64 - Pellicles or pellicle assemblies, e.g. having membrane on support framePreparation thereof characterised by the frames, e.g. structure or material thereof
The present invention provides a powdered polycarbodiimide compound which can improve the hydrolytic resistance of an ester resin, hardly causes an increase in viscosity when added to and mixed with the ester resin, and has high handling properties, and an ester resin composition comprising the same. The powdered polycarbodiimide compound according to the present invention is represented by the following formula (1), and has a melting point of 50° C. or more:
The present invention provides a powdered polycarbodiimide compound which can improve the hydrolytic resistance of an ester resin, hardly causes an increase in viscosity when added to and mixed with the ester resin, and has high handling properties, and an ester resin composition comprising the same. The powdered polycarbodiimide compound according to the present invention is represented by the following formula (1), and has a melting point of 50° C. or more:
The present invention provides a powdered polycarbodiimide compound which can improve the hydrolytic resistance of an ester resin, hardly causes an increase in viscosity when added to and mixed with the ester resin, and has high handling properties, and an ester resin composition comprising the same. The powdered polycarbodiimide compound according to the present invention is represented by the following formula (1), and has a melting point of 50° C. or more:
wherein R1 and R2 each represent a residue of an organic compound (excluding ethanol) having one functional group reactive with an isocyanate group, wherein the functional group is removed from the organic compound; R3 represents a divalent residue of a diisocyanate compound from which two isocyanate groups are removed; the diisocyanate compound has a hydrocarbon group which directly bonds to the two isocyanate groups; R4 represents a divalent residue of a diol compound from which two hydroxyl groups are removed; X1 and X2 each represent a bond formed by a reaction of the functional group with the isocyanate group; m and n each represent a number of 1 to 20; and p represents a number of 2 to 20.
Provided is a carbodiimide-based, waterborne resin crosslinking agent that can improve the storage stability of a waterborne resin composition including a waterborne resin together with the crosslinking agent and further also improve the water resistance and the solvent resistance of a cured product of the waterborne resin. A waterborne resin crosslinking agent-containing liquid and a waterborne resin composition are prepared using a waterborne resin crosslinking agent comprising a hydrophobic polycarbodiimide compound and a water-soluble organic compound as blending components, wherein the water-soluble organic compound is one or more selected from the group consisting of an alkylene glycol-based compound, a water-soluble polymer other than the alkylene glycol-based compound, and a surfactant other than the alkylene glycol-based compound or the water-soluble polymer.
C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
A waterborne resin crosslinking agent containing a predetermined polycarbodiimide compound (A) having an oxyalkylene group, a predetermined polycarbodiimide compound (B), and a surfactant (C), each polycarbodiimide compound has a structure in which an isocyanate group is capped with a predetermined end-capping compound at each of both terminals, a total content of the oxyalkylene group in (A) is 15% by mass or more, a total content of the oxyalkylene group in (A) and (B) based on a total amount of (A) and (B) is 10% by mass or less, and a content of (C) is 0.1 to 20 parts by mass based on a total content of (A) and (B) of 100 parts by mass.
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
A sputtering target formed of planar glassy carbon having main and side surfaces, wherein the main surface is a mirror-finished surface, a method of manufacturing the sputtering target, and a film formation method of forming a sputtered film on a film formation object with the use of the sputtering target.
C04B 35/524 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
Provided are: a carbodiimide-based aqueous resin crosslinking agent that has excellent storage stability in an aqueous medium, that also has excellent storage stability when used in combination with an aqueous resin, and that can also improve the hardness and solvent resistance of a coating film for a cured product of an aqueous resin; an aqueous resin crosslinking agent-containing liquid containing the same; and an aqueous resin composition. An aqueous resin crosslinking agent according to the present invention contains polycarbodiimide compounds (A) and (B); the polycarbodiimide compound (A) has a structure in which isocyanate groups at both ends are capped with prescribed hydrophilic organic compounds; the polycarbodiimide compound (B) has a structure in which a diisocyanate compound having one cyclohexyl ring or one benzene ring constitutes a structural unit and isocyanate groups at both ends are capped with prescribed organic compounds; and the polycarbodiimide compound (A) accounts for 5-90 parts by mass in 100 parts by mass of the total of the polycarbodiimide compounds (A) and (B).
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
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
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
Provided are: a carbodiimide-based aqueous resin crosslinking agent which exhibits excellent storage stability in an aqueous medium, exhibits excellent storage stability when an aqueous resin is also present, and can improve the flexibility and solvent resistance of a cured product of an aqueous resin; and an aqueous resin crosslinking agent-containing liquid and an aqueous resin composition containing same. This aqueous resin crosslinking agent contains polycarbodiimide compounds (A) and (B). The polycarbodiimide compound (A) is a structure in which isocyanate groups at both terminals are capped with a prescribed hydrophilic organic compound. The polycarbodiimide compound (B) contains a linear diisocyanate compound as a structural unit and is a structure in which isocyanate groups at both terminals are capped with a prescribed organic compound. The amount of the polycarbodiimide compound (A) is 5-90 parts by mass relative to a total of 100 parts by mass of the polycarbodiimide compounds (A) and (B).
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
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
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
The present invention provides: an aqueous resin crosslinking agent which enables the achievement of a cured film (an aqueous resin coating film) that is suppressed in decrease in the gloss (specular gloss) after heating; and the like. An aqueous resin crosslinking agent which contains a polycarbodiimide compound (A) and a polycarbodiimide compound (B), wherein: the compound (A) has a structure in which isocyanate groups at both ends are respectively blocked with hydrophilic organic compounds; at least one of the hydrophilic organic compounds has a molecular weight of 340 or more; the compound (B) has a structure in which isocyanate groups at both ends are respectively blocked with monool compounds having from 3 to 18 carbon atoms; in cases where the monool compounds have from 3 to 17 carbon atoms, from 5 to 95 parts by mass of the compound (A) is contained in a total of 100 parts by mass of the compound (A) and the compound (B); and in cases where the monool compounds have 18 carbon atoms, from 30 to 70 parts by mass of the compound (A) is contained in a total of 100 parts by mass of the compound (A) and the compound (B).
C08L 101/00 - Compositions of unspecified macromolecular compounds
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
C09J 201/00 - Adhesives based on unspecified macromolecular compounds
C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
C09D 11/10 - Printing inks based on artificial resins
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
Provided is a crosslinking agent for water-compatible resins which is capable of giving liquids containing said crosslinking agent and having excellent storage stability and cured films (water-compatible-resin coating films) having a sufficiently high gloss (mirror surface glossiness). The crosslinking agent for water-compatible resins comprises polycarbodiimide compound (A) and polycarbodiimide compound (B), wherein the polycarbodiimide compound (A) has a structure in which isocyanate groups at both ends have been respectively blocked with hydrophilic organic compounds, at least one of the hydrophilic organic compounds having a molecular weight exceeding 350, and the polycarbodiimide compound (B) has a structure in which isocyanate groups at both ends have been respectively blocked with compounds represented by formula (1) having a molecular weight of 250 or lower, the amount of the polycarbodiimide compound (A) being 5-95 parts by mass per 100 parts by mass of the sum of the polycarbodiimide compound (A) and the polycarbodiimide compound (B). Formula (1): R1(OCHR22mmOH (In formula (1), R1is an alkyl group having 1-13 carbon atoms, a cycloalkyl group, or an aryl group, R2 is a hydrogen atom or a methyl, ethyl, or propyl group, and m is a number of 1-4.)
C08L 101/00 - Compositions of unspecified macromolecular compounds
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
C09J 201/00 - Adhesives based on unspecified macromolecular compounds
C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
C09D 11/10 - Printing inks based on artificial resins
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
Provided are a polyester resin modifying agent, a method for producing the same, and a polyester resin composition including the modifying agent, the polyester resin modifying agent including a polycarbodiimide compound, being capable of improving hydrolysis resistance of a polyester resin, having a small content of a carbodiimidizing catalyst having been used in producing the polyester resin modifying agent, and having suppressed yellowness. Provided are a polyester resin modifying agent in which a polycarbodiimide compound obtained by reacting an aliphatic diisocyanate, an isocyanate-terminal capping agent, and a carbodiimidizing catalyst is included, a content of the carbodiimidizing catalyst falls within a predetermined range, and a yellowness index (YI) is less than 20; a method for producing the polyester resin modifying agent; and a polyester resin composition.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
47.
CROSSLINKING AGENT COMPOSITION FOR WATER-COMPATIBLE RESIN, AND WATER-COMPATIBLE RESIN COMPOSITION
A crosslinking agent composition for water-compatible resins which comprises a hydrophobic crosslinking agent, a water-soluble organic compound, one or more oily media selected from among hydrocarbon-based solvents and ketone-based solvents having a solubility parameter of 9.0 (cal/cm-3)1/2 or less, and an aqueous medium. The crosslinking agent composition can improve the storage stability of a water-compatible resin composition. The water-compatible resin composition which contains this crosslinking agent composition can give cured objects satisfactory in terms of water resistance and solvent resistance and is suitable also for use in wet-on-wet coating.
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
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
Provided are: a support for immobilizing microorganisms for water treatment, the support being hydrophilic and water swellable, and also having excellent chemical resistance and abrasion resistance; a resin-foamed body used for the support; and a starting material composition thereof. A support for immobilizing microorganisms for water treatment according to the present invention is formed of a resin-foamed body that contains a carbodiimide group, the resin-foamed body being made with a resin-foamed body starting material composition that includes a carbodiimide group-containing compound. The volume expansion ratio, which is expressed by the ratio of the water-swelled volume to the absolute dry state volume, is 110-1000%.
C08J 9/02 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
Provided are a polyol composition that contains a flame retardant containing a prescribed phosphinate metal salt and/or phosphate metal salt and that, in a raw liquid of a fire resistant hard polyurethane foam and the polyol composition, suppresses in-liquid coagulation of powder and enables a hard polyurethane foam having outstanding fire resistance to be obtained; a fire resistant hard polyurethane foam using said polyol composition; and a method for manufacturing same. The polyol composition of the present invention contains: a flame retardant including one or more compounds selected from the group consisting of a polyol compound including an aromatic polyester polyol, a prescribed phosphinate metal salt, and a phosphate metal salt; and a dispersant including Neuburg siliceous earth particles.
Provided are: a polyol composition which contains a flame retardant containing a prescribed phosphinic acid metal salt and/or a phosphate metal salt, said polyol composition making it possible to obtain a hard polyurethane foam which exhibits excellent flame retardancy and also being capable of suppressing particle precipitation and flocculation in a liquid in the case of said polyol composition and a starting material solution for a flame-retardant hard polyurethane foam; a flame-retardant hard polyurethane foam which uses the same; and a method for producing said foam. This polyol composition contains a polyol compound and a flame retardant. The polyol compound contains an aromatic polyester polyol and a Mannich polyol. The flame retardant contains one or more types of compound selected from the group consisting of a prescribed phosphinic acid metal salt and a phosphate metal salt.
Provided are an aqueous resin crosslinking agent that is used in the formation of a coating film with superior solvent resistance, and a polycarbodiimide compound that can be used in said aqueous resin crosslinking agent. Specifically provided is the polycarbodiimide compound shown in formula (1). Formula (1): R1-X1-(R3mm-R3-[X3-R4-X3-(R3nn-R3pp-X2-R2In formula (1), R1and R2are each independently a specific residue, R3is a specific residue, R4is a specific residue, the plurality of R4s are the same as or different from one another, at least one of R1, R2, and R4is a residue resulting from excluding an isocyanate group-reactive functional group from a (meth)acrylic polymer having said functional group, X1, X2, and X3 are each independently a specific bond, m and n each represent a number from 1 to 20, and p represents a number from 0 to 20.
C08G 73/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups
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
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
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 18/73 - Polyisocyanates or polyisothiocyanates acyclic
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08G 18/72 - Polyisocyanates or polyisothiocyanates
C08L 79/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
C09D 133/04 - Homopolymers or copolymers of esters
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
C09D 167/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
The present invention provides: a polycarbodiimide compound which enables the achievement of an aqueous resin composition that is capable of forming a coating film (layer) having water resistance and adhesion, which are good enough to withstand use in food packaging applications; an aqueous resin composition which contains this polycarbodiimide compound; and a food packaging container which is provided with a layer that is formed from this aqueous resin composition. A polycarbodiimide compound (A) which is represented by general formula (1). (In the formula, each R1represents a residue that is obtained by removing a functional group that is reactive with an isocyanate from a hydrophilic compound which has the functional group that is reactive with an isocyanate; each R2represents a divalent residue that is obtained by removing isocyanate groups from an aliphatic diisocyanate compound; R3represents a divalent residue that is obtained by removing hydroxyl groups from a glycol compound that has 2 or 3 carbon atoms; X represents a group that is formed by a reaction between the hydrophilic compound and the aliphatic diisocyanate compound; n1 represents a number from 1 to 10; n2 represents a number from 1 to 10; p represents a number from 2 to 4; and the plurality of R1moieties and R2 moieties are respectively the same as or different from each other.)
C09D 175/12 - Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
C09J 175/12 - Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
C09J 201/00 - Adhesives based on unspecified macromolecular compounds
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
B65D 85/50 - Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
Provided are a compatibilizer for a polyester resin capable of improving compatibility over the prior art and a polyester resin composition using the same. This compatibilizer comprises a polycarbodiimide compound represented by formula (1), the polycarbodiimide compound having a carbodiimide equivalent of 280 or more. (In formula (1), R1and R2are residues of an organic compound having one functional group having reactivity with an isocyanate group, with the functional group removed. R3is a divalent residue of a diisocyanate compound with two isocyanate groups removed. R4is a divalent residue of a diol compound with two hydroxyl groups removed. X1and X2 are bonds formed by reaction with the functional group of the organic compound and each of the two isocyanate groups of the diisocyanate compound, and m, n=1-20, m+n≤25, and p=0-39, where the number of carbodiimide groups per molecule is 2 to 40.)
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08L 75/00 - Compositions of polyureas or polyurethanesCompositions of derivatives of such polymers
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
55.
MODIFIED POLYCARBODIIMIDE COMPOUND HAVING HYDROPHILIC GROUP
A modified polycarbodiimide compound which is obtained by modifying at least some of carbodiimide groups in a polycarbodiimide derived from a diisocyanate compound, said polycarbodiimide having a terminal blocked with a hydrophilic compound, with an aromatic heterocyclic compound such as 3, 5-dimethylpyrazole having endocyclic secondary amine nitrogen has a potential for a curing agent, and exhibits the activity of the carbodiimide groups by being unblocked at relatively low temperatures.
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08L 101/02 - Compositions of unspecified macromolecular compounds characterised by the presence of specified groups
WW of a wall surface of the foaming container that contacts the mixed solution being 21-60°C and the soft polyurethane foam having a swollen density of 25-70 kg/m3 when swollen with water, an average porosity of 9-30 pores/25 mm when swollen with water, and a volume swelling ratio of 110-1000%, represented by the ratio of the volume thereof when swollen with water to the volume thereof when dry.
ABB of the B liquid immediately before the mixing. The flexible polyurethane foam has: a swollen density of 25-70 kg/m3 when swollen with water; an average pore count of 9-30 pores per 25 mm when swollen with water; and a volumetric swelling rate, expressed as the ratio of the volume when swollen with water to the volume when absolutely dry, of 110-1000%.
Provided is a method for producing a microorganism-immobilized carrier for water treatment use, in which it becomes possible to cut a soft polyurethane foam having water swellability and specific pores with high efficiency. A method for producing a microorganism-immobilized carrier for water treatment use which is formed from a soft polyurethane foam, wherein the soft polyurethane foam has an average number of pores of 9 to 30 pores/25 mm when swollen with water and also has a volume swelling ratio, which is expressed as a ratio of the volume upon the swelling with water to the volume in an absolutely dried state, of 110 to 1000%, the method comprising the steps of: expanding a mixed solution comprising a urethane prepolymer, a polyisocyanate compound (a) and water to produce the soft polyurethane foam having a water content of 20% by mass or more; and cutting the soft polyurethane foam while keeping the water content in the soft polyurethane foam at 20% by mass or more.
A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an inorganic alkali metal compound (B) and at least one of a phase transfer catalyst (C), a compound (D-1) represented by general formula (2-1), and a compound (D-2) represented by general formula (2-2).
The present invention provides a method for producing an aqueous carbodiimide having excellent crosslinking reactivity with a crosslinking group, such as an alcoholic hydroxy group of an aqueous resin. The method for producing an aqueous carbodiimide-containing liquid includes a step (1) of mixing an isocyanate group-containing carbodiimide (A), a terminal blocking agent, and at least one organic metal compound selected from an organic titanium compound, an organic zirconium compound, and an organic aluminum compound and allowing them to react with each other, to obtain a terminal-blocked carbodiimide (B) in which the isocyanate group is blocked with the terminal blocking agent; and a step (2) of dissolving or dispersing the terminal-blocked carbodiimide (B) in an aqueous solvent, to obtain an aqueous carbodiimide-containing liquid, wherein the terminal blocking agent contains a hydrophilic compound (X) having a functional group having reactivity with the isocyanate group and a hydrophilic group other than the functional group.
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Provided is a polyester resin composition with which it is possible to obtain a polyester resin that has superior hydrolytic resistance, wherein the generation of isocyanate gas due to heating during melt kneading and molding has been suppressed. The polyester resin composition contains a polyester resin (A), a prescribed carbodiimide compound (B) and an organic compound (C) having at least either an epoxy group or a hydroxy group, wherein the carbodiimide compound (B) content is 0.1-10 parts by mass relative to a total of 100 parts by mass of the polyester resin (A), the carbodiimide compound (B) and the organic compound (C), and the mass ratio of the organic compound (C) to the carbodiimide compound (B) is 0.1-10.0.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
Provided is a polyester resin composition that exhibits superior hydrolytic resistance and generates little isocyanate gas when heated during melt kneading and molding. The polyester resin composition contains a polyester resin (A) and a carbodiimide compound (B) having a specific structure, wherein the carbodiimide compound (B) content is 0.1-5 parts by mass relative to a total of 100 parts by mass of the polyester resin (A) and the carbodiimide compound (B).
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
Provided is a polyester resin composition that exhibits superior hydrolytic resistance and generates little isocyanate gas when heated during melt kneading and molding. The polyester resin composition contains a polyester resin (A) and a carbodiimide compound (B) having a specific structure, wherein the carbodiimide compound (B) content is 0.1-10 parts by mass relative to a total of 100 parts by mass of the polyester resin (A) and the carbodiimide compound (B).
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
The present invention provides: a powdered polycarbodiimide compound that is capable of improving the hydrolysis resistance of an ester resin, does not tend to cause thickening when added to and mixed with an ester resin, and has exceptional handleability; and an ester resin composition in which the powdered polycarbodiimide compound is used. This powdered polycarbodiimide compound is represented by formula (1) and has a melting point of 50°C or higher. (R1and R2are residues obtained by removing the functional group from an organic compound (excluding ethanol) that has one functional group having reactivity with an isocyanate group. R3is a divalent residue obtained by removing two isocyanate groups from a diisocyanate compound. The diisocyanate compound has a hydrocarbon group directly bonded to the two isocyanate groups. R4is a divalent residue obtained by removing two hydroxyl groups from a diol compound. X1and X2 are bonds formed by reaction of the functional group and the isocyanate groups. m and n represent numbers of 1-20, and p represents a number of 2-20.)
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
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
Provided are: a carbodiimide-based aqueous resin crosslinking agent which, when a crosslinking agent and an aqueous resin are used in combination, has excellent storage stability and can also make a cured product of the aqueous resin have various improved physical properties such as solvent resistance or water resistance; an aqueous resin crosslinking agent-containing liquid containing the same; and an aqueous resin composition. This aqueous resin crosslinking agent contains a predetermined polycarbodiimide compound (A) having an oxyalkylene group, a predetermined polycarbodiimide compound (B), and a surfactant (C), wherein: each polycarbodiimide compound has, at both ends thereof, a structure in which an isocyanate group is blocked with a predetermined end-sealing compound; the total content of the oxyalkylene group in (A) is 15 mass% or more; the total content of the oxyalkylene group in (A) and (B) with respect to the total amount of (A) and (B) is 10 mass% or less; and the content of (C) is 0.1-20 parts by mass with respect to 100 parts by mass of the total content of (A) and (B).
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
C08L 101/02 - Compositions of unspecified macromolecular compounds characterised by the presence of specified groups
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
67.
CROSSLINKING AGENT FOR AQUEOUS RESIN, LIQUID CONTAINING CROSSLINKING AGENT FOR AQUEOUS RESIN, AND AQUEOUS-RESIN COMPOSITION
Provided is a carbodiimide-based crosslinking agent for aqueous resins which improves the storage stability of an aqueous-resin composition containing both a crosslinking agent and an aqueous resin and which enables the aqueous resin to give cured objects having improved water resistance and improved solvent resistance. The crosslinking agent for aqueous resins comprises a hydrophobic polycarbodiimide compound and one or more water-soluble organic compounds, wherein the water-soluble organic compounds are one or more substances selected from among alkylene glycol compounds, water-soluble polymers other than the alkylene glycol compounds, and surfactants which are none of the alkylene glycol compounds and the water-soluble polymers. The crosslinking agent for aqueous resins is used to prepare both a liquid containing the crosslinking agent for aqueous resins and an aqueous-resin composition.
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
68.
THERMAL INSULATION STRUCTURE FOR LOW-TEMPERATURE FLUID TANK AND METHOD FOR CONSTRUCTING SAME
In this invention, a thermal insulation structure for a low-temperature fluid tank is formed by a construction method comprising a step of installing an elastic spacer 2 on the outside of the tank so as to divide a tank outer wall 1 into a plurality of compartments X, and a step of filling at least the compartments X with a spray urethane foam 4a.
A polycarbodiimide compound represented by the following general formula (1):
2 may be the same as or different from each other; and n represents an integer of 2 to 50.
C08G 18/71 - Monoisocyanates or monoisothiocyanates
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
Provided is a one-pack type adhesive which contains (A) an epoxy resin, (B) a curing agent, (C) a curing accelerator, (D) an inorganic filler and (E) a polycarbodiimide compound, and wherein: the curing agent (B) contains at least one amine-based curing agent; the curing accelerator (C) contains at least one capsule type curing accelerator; the inorganic filler (D) contains at least one flake-like inorganic filler; and the content of the inorganic filler (D) is 10-200 parts by mass relative to 100 parts by mass of the epoxy resin (A).
The present invention provides: a polyester resin modifying agent which contains a polycarbodiimide compound and is capable of improving the hydrolysis resistance of a polyester resin, and which is produced using only a small amount of a carbodiimidization catalyst and is suppressed in the degree of yellowing; a method for producing this polyester resin modifying agent; and a polyester resin composition which contains this modifying agent. A polyester resin modifying agent which contains a polycarbodiimide compound that is obtained by reacting an aliphatic diisocyanate, an isocyanate terminal blocking agent and a carbodiimidization catalyst, and which is configured such that: the content of the carbodiimidization catalyst is within a predetermined range; and the degree of yellowing (YI) thereof is less than 20. A method for producing this polyester resin modifying agent; and a polyester resin composition.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
72.
POLYCARBODIIMIDE COMPOUND, AND POLYESTER RESIN COMPOSITION AND POLYESTER RESIN MODIFIER IN WHICH SAME IS USED
m2-mn2-mmmm3-m3-m; m is 1 or 2; Z is a residue obtained by removing two isocyanate groups from an aliphatic diisocyanate compound; and n is any integer of 2-7.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
73.
Carboxyl-group-containing aqueous resin composition and method for manufacturing polycarbodiimide compound
Disclosed is a carboxy group-containing aqueous resin composition containing a carboxy group-containing aqueous resin and a polycarbodiimide compound (X) represented by the following general formula (1):
2's may be the same or different.
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
A method for producing a carbodiimide compound, the method comprising a carbodiimide generation step in which an aliphatic tertiary isocyanate compound (A) is reacted in the presence of an organic alkali metal compound (B) having Lewis basicity.
B01J 31/04 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
B01J 31/06 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
B01J 31/12 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
This method for producing a carbodiimide compound comprises a carbodiimide generation step in which an aliphatic tertiary isocyanate compound (A) is reacted in the presence of an inorganic alkali metal compound (B) and at least one among a phase-transfer catalyst (C), a compound (D-1) represented by general formula (2-1), and a compound (D-2) represented by general formula (2-2).
B01J 31/06 - Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
B01J 31/26 - Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups
Provided is a track pad manufacturing method in which the number of steps is reduced and the work efficiency is improved, and by which a track pad having excellent form stability can be obtained. In this track pad manufacturing method, a first molded body is formed by charging a first material into a mold having a spacer and/or a movable part, and then a second molded body is formed by charging a second material into a space where the spacer was present or a space created by moving the movable part.
To provide a polycarbodiimide copolymer and a modified polycarbodiimide copolymer each suitable for a curing agent that can allow a cured product of a carboxy group-containing resin composition to be improved in flexibility without any loss of water resistance, as well as a curing agent of a carboxy group-containing resin composition, and a carboxy group-containing resin composition. The present invention enables a cured product to be enhanced in water resistance due to introduction of a predetermined soft segment into a polycarbodiimide molecule, in use for a curing agent, and also enables a carboxy group-containing resin composition to be enhanced in storage stability due to modification with an aliphatic amine or an aromatic heterocyclic amine.
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
4433. [Each A independently represents a residue obtained by removing a hydroxyl group from a polyalkylene glycol monohydrocarbyl ether represented by formula (1a). (1a): R11(OCHR122nnOH. (In formula (1a), R11represents a C1-4 alkyl group or phenyl group, R12 represents a hydrogen atom or a C1-4 alkyl group, and n is an integer of 4-45.)]
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
79.
METHOD FOR PRODUCING AQUEOUS CARBODIIMIDE-CONTAINING LIQUID
The present invention provides a method for producing an aqueous carbodiimide which has excellent crosslinking reactivity with a crosslinkable group such as an alcoholic hydroxyl group of an aqueous resin. A method for producing an aqueous carbodiimide-containing liquid, which comprises: a step (1) wherein an isocyanate group-containing carbodiimide (A), a terminal blocking agent and one or more organic metal compounds that are selected from among organic titanium compounds, organic zirconium compounds and organic aluminum compounds are mixed and reacted with each other, thereby obtaining a terminally blocked carbodiimide (B) wherein the isocyanate group is blocked by the terminal blocking agent; and a step (2) wherein the terminally blocked carbodiimide (B) is dissolved or dispersed in an aqueous solvent, thereby obtaining an aqueous carbodiimide-containing liquid. The terminal blocking agent contains a hydrophilic compound (X) which has a functional group that is reactive with an isocyanate group and a hydrophilic group that is other than the functional group.
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
Provided are: a resin composition which uses a resin having an alcoholic hydroxyl group and/or a carboxy group as a crosslinking group, and exhibits excellent crosslinking reactivity from a polycarbodiimide compound or a polyoxazoline compound even at a reaction temperature which is low enough that no discoloration or thermal decomposition of said resin occurs; a resin material containing the same; and a resin crosslinked body, which is a reaction product of the resin composition. The provided resin composition contains (A) one or more types of resin including an alcoholic hydroxyl group or a carboxy group, (B) one or more types of crosslinking agent selected from a polycarbodiimide compound and a polyoxazoline compound, and (C) a prescribed organic metal compound. Also provided are the resin material which uses the same, and the resin crosslinked body.
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 73/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups
The present invention is a resin composition for dense fuel cell separators, which contains a graphite powder and an epoxy resin component that contains a base material, a curing agent and a curing accelerator, and wherein: the graphite powder has a spring back of 20-70% and an average particle diameter d50 of 30-100 μm; and the curing accelerator is an imidazole compound that has an aryl group in the 2-position. This resin composition for dense fuel cell separators enables the achievement of a dense separator for fuel cells, which satisfies a predetermined performance even in cases where the separator is compression molded in a short time that is less than 10 seconds.
A heat insulation structure for a tubular pipe is provided with which a connection member can be mounted in a state in which the engagement with a heat insulation member is unlikely to detach, even when there is no space corresponding to the length of the connection member on one side location of the heat insulation member in the axial direction of the tubular pipe. On the outer circumferential part of the tubular pipe, a semicircular heat insulation member is provided in a state in which an adjacent pair of heat insulation member end parts are connected to a pair of elongated connection members along the axial direction of the tubular pipe, the cross-sectional shape of the connection member on one side being formed in a configuration comprising a body part that engages with cutoff sections of the pair of heat insulation member end parts, and a pair of engagement projections that engage with engagement recessed sections at the top of the body part, and the cross-sectional shape of the connection member on the other side being formed in a configuration having flat surfaces along the inner surfaces and the outer surfaces of the recessed sections of the pair of heat insulation member end parts.
Provided is a heat insulating structure for a cylindrical pipe, wherein the heat insulating structure can suppress formation of a large gap between a pair of heat insulating members arranged adjacent to each other in the axial direction of the cylindrical pipe. On the outer periphery of the cylindrical pipe through which a low temperature fluid flows, a heat insulating wall is provided. The heat insulating wall is composed of a plurality of cylindrical layers having different diameters, and each of the cylindrical layers is formed of circular-arc heat insulating members (P) divided in the circumferential direction of the cylindrical pipe and the axial direction of the cylindrical pipe. With respect to the pair of heat insulating member (P) aligned adjacent to each other in the axial direction of the cylindrical pipe in at least a heat insulating wall on the inner side in the radial direction of the cylindrical pipe among the plurality of layers of the heat insulating wall, a connecting member (W) having a pair of locking portions (Wa) is provided so that the pair of locking portions (Wa) are separately inserted inward in the radial direction of the cylindrical pipe into the outer surface portions of the pair of heat insulating members (P).
This curing agent for a powder paint includes a modified polycarbodiimide compound that is obtained by modifying a polycarbodiimide compound derived from a diisocyanate compound, the modification carried out using an aromatic heterocyclic compound having an endocyclic secondary amine nitrogen.
C09D 201/02 - Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
A polycarbodiimide compound represented by general formula (1). (In general formula (1), R1and R3may be the same or different and each represent a residue of an organic compound having one isocyanate-reactive functional group, the residue having been formed by removing the isocyanate-reactive functional group from the organic compound; the R2moieties include the group represented by formula (i), which is a divalent residue formed by removing the isocyanate groups from 2,4'-diphenylmethane diisocyanate, and the group represented by formula (ii), which is a divalent residue formed by removing the isocyanate groups from 4,4'-diphenylmethane diisocyanate, the group represented by formula (i) and the group represented by formula (ii) accounting for 30-70 mol% and 30-70 mol%, respectively, of all the R2moieties contained in the polycarbodiimide compound; X1and X2 may be the same or different and each represent a group formed by reacting the organic compound with an isocyanate; and n is an integer of 2-50.)
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/71 - Monoisocyanates or monoisothiocyanates
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
86.
THERMOSETTING RESIN COMPOSITION AND RESIN CURED PRODUCT
Provided are: a thermosetting resin composition which is a mixed resin composition containing a benzoxazine compound and an epoxy compound, and which enables the achievement of a cured product of the resin composition having improved heat resistance and moisture resistance; and a resin cured product which is obtained by curing this thermosetting resin composition. A thermosetting resin composition which contains a benzoxazine compound (A), an epoxy compound (B) and a polycarbodiimide compound (C); this thermosetting resin composition which additionally contains an imidazole compound (D); and a resin cured product which is obtained by curing one of these thermosetting resin compositions.
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
Provided is a one-pack type adhesive which contains (A) an epoxy resin, (B) a curing agent, (C) a curing accelerator, (D) an inorganic filler and (E) a polycarbodiimide compound, and wherein: the curing agent (B) contains at least one amine-based curing agent; the curing accelerator (C) contains at least one capsule type curing accelerator; the inorganic filler (D) contains at least one flake-like inorganic filler; and the content of the inorganic filler (D) is 10-200 parts by mass relative to 100 parts by mass of the epoxy resin (A).
A carbodiimide-based aqueous resin crosslinking agent excellent in the storage stability in the coexistence of an aqueous resin, comprising a polycarbodiimide (A) having substituents derived from hydrophilic organic compounds at both terminals thereof, at least one of the substituents being a substituent derived from a hydrophilic organic compound having a molecular weight of 340 or more, and a polycarbodiimide (B) having substituents derived from organic compounds having a molecular weight of 300 or less at both terminals thereof, wherein the mass ratio [(B)/(A)] of the polycarbodiimide (B) to the polycarbodiimide (A) is from 20/80 to 95/5.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Crosslinking agents; crosslinking agents for plastics;
chemical additives for use in manufacture; chemical
additives for use in the manufacture of plastics; chemical
additives for synthetic resins; resin modifiers; resin
compatibilizing agents; viscosity modifiers; hardeners for
epoxy resins; hardeners for resins; dispersing agents;
diagnostic reagents for chemical use, except for medical and
veterinary use; industrial chemicals; adhesives for
industrial purposes; plant growth regulating preparations;
fertilizers; ceramic glazings; oil cement [putty]; fatty
acids for industrial purposes; alkaline-earth metals;
graphite for industrial purposes; photographic fixers;
chemical test paper; artificial sweeteners; flour for
industrial purposes; unprocessed plastics; wood pulp for
manufacturing purposes.
90.
POLYCARBODIIMIDE COMPOUND, PRODUCTION METHOD THEREFOR, AND RESIN COMPOSITION
Provided are: a carbodiimide compound excellent in terms of storage stability and crosslinking-agent performance; a method for producing the carbodiimide compound; and a resin composition which has excellent film-forming properties at low temperatures and gives, at low temperatures, coating films having excellent solvent resistance. The carbodiimide compound is a polycarbodiimide compound which is derived from an aliphatic diisocyanate compound having at least one primary isocyanate group and in which all of the terminals each have a structure blocked with an organic compound having a functional group reactive with an isocyanate group. The polycarbodiimide compound has a carbodiimide group concentration A (%) and a weight-average molecular weight Mw which satisfy relationship (1). The resin composition comprises the carbodiimide compound and a water-compatible resin having a given acid value, in a given ratio. (A/Mw)×1000≥0.55 (1)
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
C09D 133/04 - Homopolymers or copolymers of esters
C09D 135/02 - Homopolymers or copolymers of esters
Provided is a fuel cell separator obtained by molding a composition that contains an epoxy resin and a graphite powder, wherein: the epoxy resin contains a main resin, a curing agent, and a curing accelerator; the main resin contains a biphenyl novolak-type epoxy resin having an ICI viscosity of 0.03-0.12 Pa·s at 150° C.; and the curing agent is a novolak-type phenol resin having a weight-average molecular weight of 420-1,500 and a dispersion degree of 2.0 or less.
A carboxyl-group-containing aqueous resin composition containing a carboxyl-group-containing aqueous resin and a polycarbodiimide compound (X) represented by general formula (1). (In the formula: R1 represents a residue obtained by removing a functional group capable of reacting with isocyanate from a hydrophilic compound having the functional group capable of reacting with isocyanate, R2 represents a divalent residue obtained by removing an isocyanate group from a diisocyanate compound, and R3 represents a divalent residue obtained by removing a hydroxyl group from a glycol compound; X represents a group formed by reaction of the hydrophilic compound with the diisocyanate compound; n1 represents a number from 1 to 10, n2 represents a number from 1 to 10, and m represents a number from 1 to 5; and a plurality of R1 and R2 may each be the same or different.)
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
Provided are: a polycarbodiimide copolymer and a modified polycarbodiimide copolymer, which are suitable as a curing agent capable of improving flexibility without impairing water resistance in a cured product of a carboxyl group-containing resin composition; a curing agent for a carboxyl group-containing resin composition; and a carboxyl group-containing resin composition. The present invention, when used as a curing agent, can improve the water resistance of a cured product by introducing a predetermined soft segment into the polycarbodiimide molecule, and can improve the storage stability of the carboxyl group-containing resin composition by modifying the resin composition with an aliphatic amine or an aromatic heterocyclic amine.
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
The present invention provides an epoxy resin composition, which is improved in terms of storage stability without deteriorating the characteristics of a cured resin, and is also superior in handling property, by using a curing accelerator having higher latency. The epoxy resin composition of the present invention comprises an epoxy resin, a curing agent, and a curing accelerator, wherein the curing accelerator is a reaction product between a carbodiimide compound and an imidazole compound, and is contained in an amount of 0.1 to 5 parts by mass with respect to 100 parts by mass of the epoxy resin.
C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
The present invention is a resin composition for dense fuel cell separators, which contains a graphite powder and an epoxy resin component that contains a base material, a curing agent and a curing accelerator, and wherein: the graphite powder has a spring back of 20-70% and an average particle diameter d50 of 30-100 μm; and the curing accelerator is an imidazole compound that has an aryl group in the 2-position. This resin composition for dense fuel cell separators enables the achievement of a dense separator for fuel cells, which satisfies a predetermined performance even in cases where the separator is compression molded in a short time that is less than 10 seconds.
The modified polycarbodiimide compound of the present invention is obtained by modifying a polycarbodiimide compound derived from a diisocyanate compound with at least one aliphatic amine selected from the group consisting of diethylamine, methylisopropylamine, tert-butylethylamine, di-sec-butylamine, dicyclohexylamine, 2-methylpiperidine and 2,6-dimethylpiperidine. The curing agent of the present invention comprises the modified polycarbodiimide compound of the present invention. The thermosetting resin composition of the present invention comprises a carboxyl group-containing resin having a carboxyl group in a molecule or an epoxy resin having two or more epoxy groups in one molecule, and the curing agent of the present invention. Thus, a modified polycarbodiimide compound that can allow a resin composition to be cured at a relatively low temperature and that can suppress curing of a resin composition in a drying step before a thermal curing step of a resin composition, a curing agent comprising the modified polycarbodiimide compound, and a thermosetting resin composition comprising the curing agent can be provided.
The modified polycarbodiimide compound of the present invention is obtained by modifying a polycarbodiimide compound derived from a diisocyanate compound with an aromatic heterocyclic compound having endocyclic secondary amine nitrogen. The curing agent of the present invention comprises the modified polycarbodiimide compound of the present invention. Thus, a modified polycarbodiimide compound that allows amine dissociation to start at a low temperature as compared with a modified polycarbodiimide compound obtained by modifying a polycarbodiimide compound derived from a diisocyanate compound with diisopropylamine, and a curing agent comprising the modified polycarbodiimide compound can be provided.
Provided is a method of manufacturing gloves, the method comprising: (1) a step for immersing a glove form in a liquid solidifying agent containing calcium ions so that the solidifying agent adheres to the glove form; (2) a step for adjusting pH to at least 9 using an ammonium compound or an amine compound, and allowing an emulsion composition for gloves to stand while being agitated; (3) a dipping step in which the glove form to which the solidifying agent was adhered in step (1) is immersed in the emulsion composition for gloves; (4) a gelling step in which the glove form to which the emulsion composition for gloves has been adhered is allowed to stand at a temperature and for a length of time satisfying specific conditions; (5) a leaching step for removing impurities from a cured film precursor formed on the glove form; (6) a beading step for forming a bead on a cuff part of the glove after the leaching step; (7) a precuring step for heating and drying the cured film precursor that has passed through the beading step; and (8) a curing step for heating the cured film precursor at a specific temperature and for a specific length of time to obtain a cured film.
This porous separator for fuel cells, which is obtained by molding a composition that contains 100 parts by mass of a graphite powder having a spring back of 40-100% and 10.0-16.0 parts by mass of an epoxy resin component containing a base material, a curing agent and a curing accelerator, is capable of achieving a good balance between high gas impermeability and good water permeability without being subjected to a special hydrophilizing treatment.
Provided are: a resin additive with which it is possible to effectively suppress the generation of isocyanate gas during the production of a master batch or a resin composition when using a carbodiimide compound as an additive for improving the hydrolysis resistance of a resin; a master batch in which the resin additive is used, and a method for producing the same; and a resin composition in which the resin additive is used, and a method for producing the same. A resin additive including a carbodiimide compound (A) and a surfactant (B), a master batch and a resin composition including the resin additive and a resin (D), and methods for producing these.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
