Primer composition

Abstract

There is disclosed a primer composition comprising [A] a reaction product of: (1) a hydroxyl group-containing organic compound composed of; (a) an epoxy group-containing alcohol represented by the general formula [I]: ##STR1## wherein, R.sup.1 is a hydrocarbon group having 1 to 15 carbon atoms, or an organic group in which the same or different hydrocarbon groups are bonded to each other by an ether bond or an ester bond; and each of m and n is a value of 1 or more; and (b) a hydroxyl group-containing (meth)acrylate represented by the formula [II]: (CH.sub.2 .dbd.CR.sup.2 COO).sub.a R.sup.3 [II] wherein R.sup.2 is a hydrogen atom or a methyl group; R.sup.3 is a substituted or unsubstituted hydrocarbon group, or a group in which the same or different hydrocarbon groups are bonded to each other by ether bond or the ester bond, the R.sup.3 being a-valent and having at least one hydroxyl group; and a is an integer of 1 to 3; an amount of active hydrogen atoms included in the aforesaid (a) being 25 to 75% with respect to the total amount of active hydrogen atoms included in the aforesaid (1), and (2) a polyisocyanate including 70 to 100% of the theoretical amount of isocyanato groups which will react with the total amount of the active hydrogen atoms included in the aforesaid (1); [B] an amino group-containing alkoxysilane or its partially hydrolyzed condensate having 0.5 to 1.5 amino active hydrogen atoms per epoxy group included in the aforesaid (1)(a); and [C] a diluent.

Dependencies are inferred from the claim text.