Blocked polyisocyanates

Details Blocked polyisocyanates Blocked polyisocyanates

C - Chemistry, Metallurgy

08

G

C08G 18/80 (2006.01) C08G 18/62 (2006.01) C08G 18/79 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2530127

The present invention provides blocked polyisocyanates according to formula (I), a process for their production and uses of the blocked polyisocyanates for the preparation of lacquers, paints, adhesives and elastomers: (see formula I) wherein independently of one another R1-R4 are the same or different and denote hydrogen, C1-C6-alkyl or cycloalkyl, R5 denotes C1-C10-alkyl or C3-C10-cycloalkyl, y denotes a number from 2 to 8, A denotes a radical of an isocyanate having functionality y, and B represents (see formula II), (see formula III), (see formula IV), (see formula V) wherein independently of one another R6-R8 are the same or different and denote C1-C6-alkyl or C3-C6-cycloalkyl and R9 denotes hydrogen, C1-C6-alkyl or C3-C6-cycloalkyl.

L'invention concerne de nouveaux polyisocyanates bloqués et des systèmes à cuisson à une composante contenant ces polyisocyanates. L'invention concerne également leur production et leur utilisation pour produire des peintures, des couleurs, des adhésifs et des élastomères.

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