Patent ID: 9156937
Filing Date: 2015-10-13
Classification: C08G,C09D

Abstract:
1. A blocked polyisocyanate composition comprising at least one blocked polyisocyanate represented by a formula (I): wherein R represents a residue of a polyisocyanate made from one or two or more selected from an aliphatic polyisocyanate, an alicyclic polyisocyanate and an aromatic polyisocyanate, from which isocyanate groups thereof are excluded, wherein the R is bound to a substituent(s) including A and a substituent(s) including B; A represents one or two or more kinds of a keto form represented by a formula (II) shown below or an enol isomer(s) thereof; B represents one or two or more kinds of a structural unit represented by a formula (III); and a total of x and y is from 2.0 to 20, x is not 0, and y is not 0, wherein R 1 represents an alkyl group containing 1 to 8 carbon atoms, a phenyl group or a benzyl group; and R 3 and R 4 may be identical to or different from each other, and they each represents a hydrocarbon group containing 1 to 30 carbon atoms, which optionally contains at least one selected from an ether bond, an ester bond, a hydroxyl group, a carbonyl group, and a thiol group, wherein the R 3 and the R 4 may be bonded to each other to form a 5- or 6-membered cycloalkyl group, or the R 3 and the R 4 may form a 3-, 4-, 5-, or 6-membered ring together with a nitrogen atom sandwiched between the R 3 and the R 4 , the ring optionally containing a nitrogen or oxygen atom as an additional crosslinking member, wherein R 5 represents a residue of an active hydrogen-containing compound, from which an active hydrogen is excluded.