Patent ID: 7635742

Claim:
Modified stable polyisocyanates of formula (I) below having a crosslinking functional group: in which: iso is a polyisocyanate residue containing at least two isocyanate functions after conversion of at least one isocyanate function, and further comprising at least one other isocyanate function masked with a masking agent or a mixture of thermolabile masking agents: and iso optionally comprising at least one additional unmodified isocyanate function; X represents an atom or a group of atoms resulting from the reaction of a compound bearing a —XH group, optionally after decarboxylation, with an isocyanate function; A represents a bond or a linear, branched or cyclic hydrocarbon-based chain containing from 1 to 30 carbon atoms; R 1 represents H or a C 1 -C 6 alkyl group; Q is absent or represents an oxygen or sulfur atom or a hydrocarbon-based chain as defined for A; Z represents a bond or a hydrocarbon-based chain as defined for A; Y represents a bond or a hydrocarbon-based chain as defined for A; W is absent or represents a bond, an oxygen or sulfur atom or a hydrocarbon-based chain as defined for A; and Q being absent when Y or A represents a bond and W or A being absent when Y or Z represents a bond; with the proviso that Z and Y do not simultaneously represent a bond.