Non-aqueous lacquer with high protection against stone...

Details Non-aqueous lacquer with high protection against stone... Non-aqueous lacquer with high protection against stone...

C - Chemistry, Metallurgy

08

G

117/195, 400/502

C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/80 (2006.01)

Patent

CA 1253993

- 18 - ABSTRACT Non-aqueous lacquer with high resistance to stone chipping, containing, as binder, a mixture of film forming, hydroxyl-containing copolymers with blocked polyisocyanates which have been obtained by the reaction of polyhydroxyl compounds containing 2 to 4 hydroxyl groups per molecule and having a molecular weight of from 400 to 2,000 with aliphatic and/or cyclo aliphatic diisocyanates, the ratio of isocyanate groups to hydroxyl groups being in the range of from 2.2 to 1.7, followed by reaction of the remeining free isocyanate groups with acetoacetic acid alkyl esters containing, as alkyl groups, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl or sec.-butyl groups, a process for its preparation, and its use.

465362

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