Patent ID: 6455606
Filing Date: 2002-09-24
Classification: C08G,C08J

Abstract:
A polyurethane foam which is obtained by reacting an addition-polymerizable active hydrogen component comprising a compound (A1) with or without not more than 80 mass % of a compound (A0) based on a total mass of the compunds (A1) and ( A0), or comprising a compound (A1) and a compound (A2) with or without not more than 80 mass % of a compound (A0) based on the total mass of the compounds (A1) and (A0), withan organic polyisocyanate in the presence or absence of at least one auxiliary selected from the group consisting of vlowing agents and additives to polyurethane under a condition in which addition polymerization chains and polyurethane chains are crosslinked, and which has a structure in which addition-polymerization chains are cross-linked to polyurethane chains; the compound (A1) having an active hydrogen-containing group and an addition-polymerizable functional group represented by a general formula (1); the compound (A2) having at least 2.5 active hydrogen-containing groups, and a value of active hydrogen-containing group of the compound of at least 40, and not having an addition-polymerizable functional group; the compound (A0) containing an addition-polymerizable functional group and not having an active hydrogen-containing group; wherein (1) is wherein R denotes hydrogen, an alkyl group having 1 to 15 carbon atoms, or an aryl group having 6 to 21 carbon atoms; wherein (A1) is a compound selected from compounds (A1/1) to (A1/4), wherein (A1/1) are partial esters of an unsaturated carboxylic acid with a polyol selected from polyols (i) to (vi), wherein (i) are dihydric alcohols; (ii) are alcohols with a value of 3 to 8 selected from glycerol, trimethylolpropane, pentaerythritol, diglycerol, &agr;- methylglucoside, sorbitol, xylitol, mannito, glucose, fructose, and sucrouse; (iii) are polyhdric phenols; (iv) are polyether polyols derived from alkylene oxides with a polyhydric alcohol or a polyhydric phenol; (v) are polyether polyols derived from alkylene oxides with an amine; (vi) are polyester polyols derived from a polyhydric alcohol and a polycarboxylic acid; (A1/2) are partially amidated compounds derived from an unsaturated carboxylic acid and a polyamine, or alkanolamides derived from an unsaturated caroxylic acid and an alkanolamine; (A1/3) are partial thioesterof an unsaturated carboxylic acid with a polythiol; (A1/4) are vinyl monomers having a hydroxyl group selected from l-hydroxylstyrene, (meth)allyl alcohol, cinnamyl alcohol, crotonyl alcohol, and alkylene oxide adducts of these compounds.