Patent ID: 8461332
Filing Date: 2013-06-11
Classification: B32B,C07D,C08G,C08J,C08K,C08L,C09D,Y10T

Abstract:
1. A thermosetting resin composition characterized by comprising a curing agent (A) having an acidic substituent and an unsaturated maleimido group, and a compound (B) which is cured with the curing agent, wherein a cured product of the composition has a glass transition temperature of 200° C. or higher, wherein the curing agent (A) is produced through a method characterized by comprising reacting, in an organic solvent, a maleimide compound (a) having at least two N-substituted maleimido groups in a molecule thereof with an amine compound (b) having an acidic substituent represented by the following formula I: (wherein R 1 , which is an acidic substituent, represents a hydroxyl group, a carboxyl group, or a sulfonic acid group; R 2 represents a hydrogen atom, a C1-C5 aliphatic hydrocarbon group, or a halogen atom; x is an integer from 1 to 5; y is an integer from 0 to 4; and the sum of x and y is 5), wherein the compound (B) which is cured with the curing agent is an amine compound having at least two primary amino groups in a molecule thereof which is a 6-substituted guanamine compound represented by the following formula (V): (wherein R 6 represents a phenyl group, a methyl group, an allyl group, a butyl group, a methoxy group, or a benzyloxy group), and wherein the composition further contains a carboxyl-group-containing acidic compound (C) having an acid dissociation constant (pKa) of 4.05 or more in an infinitely diluted aqueous solution at 25° C.