Patent ID: 6891012

Claim:
A solid isocyanate-based composition which is at least partially blocked with at least one compound corresponding to the formula in which R 1 represents hydrogen, an alkyl group, an aryl group, halogen or an allyl group, R 2 represents a CO—O-alkyl, CO—O-aryl, CO—O-alkoxyalkyl, CO—O-arylalkyl, CO-alkyl, CO-aryl, CO-alkoxyalkyl, CO-arylalkyl, cyanide, Si(CH 3 ) 3 or Si(C 2 H 5 ) 3 group, R 3 represents the same group as R 2 or a different CO—O-alkyl, CO—O-aryl, CO—O-alkoxyalkyl, CO—O-arylalkyl, CO-alkyl, CO-aryl, CO-alkoxyalkyl, CO-arylalkyl, cyanide, Si(CH 3 ) 3 or Si(C 2 H 5 ) 3 group, or R 2 and R 3 together represent a cyclic ketone and/or ester having a glass transition temperature of at least 32° C.