摘要:
The present invention provides an amine based epoxy resin curing agent containing an epoxy resin and an amine compound capable of imparting a high gas barrier performance and a long pot life, in addition to excellent performances which an epoxy resin conventionally possesses, and an epoxy resin composition with a high gas barrier performance and a long pot life, which contains the subject curing agent. Also, the present invention provides an adhesive for laminate with excellent adhesiveness to various polymers, papers, metals, etc., which contains, as a main component, an epoxy resin composition containing an amine based resin curing agent with a high gas barrier performance and a long pot life. The amine based epoxy resin curing agent of the present invention is composed of a reaction product of the following (A), (B) and (D) or a reaction product of the following (A), (B), (C) and (D): (A) m-xylylenediamine or p-xylylenediamine, (B) a polyfunctional compound having at least one acyl group, which is capable of forming an amide group site through a reaction with a polyamine and forming an oligomer, (C) a monovalent carboxylic acid having from 1 to 8 carbon atoms and/or its derivative, and (D) a functional compound having at least one carbonate site represented by the formula (2), which is capable of forming a carbamate site represented by the formula (1) through a reaction with a polyamine:
摘要:
A resin composition according to the present invention comprises: (A) a (meth)acrylic copolymer containing 5 to 85% by mass of a (meth)acrylate unit (a) represented by general formula (1) and 15 to 95% by mass of a methyl (meth)acrylate unit (b); and (B) a polycarbonate-type resin.
摘要:
Provided is e.g., an epoxy resin curing agent, an epoxy resin composition and a gas-barrier adhesive containing the epoxy resin composition which can express high gas-barrier properties and excellent adhesiveness to various types of plastics, in particular, to polyester, and a gas-barrier laminate having high gas-barrier properties and excellent adhesiveness to various types of plastics, in particular, to polyester. The epoxy resin curing agent of the present invention contains at least the following component (I) and component (II) in a mass ratio [component (I)/component (II)] of 50/50 to 92/8. Furthermore, the epoxy resin curing agent of the present invention contains at least an epoxy resin and the epoxy resin curing agent of the present invention. Component (I): a reaction product obtained by reacting at least (A) metaxylylenediamine or paraxylylenediamine and at least one selected from (B1) acrylic acid and acrylic acid derivatives; Component (II): a reaction product obtained by reacting at least (A) metaxylylenediamine or paraxylylenediamine and at least one selected from (B2) unsaturated carboxylic acids represented by the following formula (1) and derivatives thereof: wherein R 1 and R 2 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms or an aryl group; with the proviso that at least one of R 1 and R 2 is an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms or an aryl group.
摘要:
A resin according to the present invention is prepared by reacting a reaction product, which is obtained by Michael addition reaction between the following component (A) and the following component (B) and a subsequent amide group formation reaction, with the following component (C): (A) an aliphatic diamine having 2 to 8 carbon atoms or a diamine having a C 6-8 aromatic ring; (B) an unsaturated carboxylic acid represented by formula (2) and/or a derivative thereof, provided that the following component (C) is excluded: [in formula (2), R 1 and R 2 independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms or an aryl group]; and (C) a (meth)acrylic acid-type compound having at least one glycidyl or isocyanate group.
摘要:
The present invention provides a polybenzoxazole resin containing a repeating unit represented by the following general formula (1): wherein R 1 is a tetravalent aromatic group; N atoms and O atoms which are bonded to R 1 are present in the form of pairs each consisting of an N atom and an O atom such that the N atom and the O atom in each pair are respectively bonded to adjacent two carbon atoms constituting the same aromatic ring in R 1 ; R 2 is an alkanediyl group having 1 to 6 carbon atoms; and n is an integer of 2 to 10000, which is excellent in electrical insulating properties, heat resistance, mechanical properties, physical properties, dimensional stability and the like, as well as a polybenzoxazole precursor capable of producing the polybenzoxazole resin which is excellent in solubility in solvents and storage stability.
摘要:
A laminated film including at least a substrate, a primer layer, an adhesive layer and a sealant layer which are laminated in this order. The adhesive layer is formed by curing an adhesive containing an epoxy composition composed of an epoxy resin and an epoxy resin-curing agent as a main component. The cure product contains the skeletal structure represented by the following formula 1: in an amount of 40% by weight or higher. The primer layer contains at least one primer resin selected from the group consisting of polyester-based resins, polyurethane-based resins, vinyl chloride-vinyl acetate copolymer-based resins, rosin-based resins, polyamide-based resins and chlorinated olefin-based resins.