Polyurethanes containing acryloyl or methacryloyl groups,...

Details Polyurethanes containing acryloyl or methacryloyl groups,... Polyurethanes containing acryloyl or methacryloyl groups,...

C - Chemistry, Metallurgy

08

G

C08G 18/06 (2006.01) C08G 18/67 (2006.01) C08G 18/73 (2006.01) C08G 18/81 (2006.01) C09D 175/16 (2006.01) C09J 175/16 (2006.01)

Patent

CA 2049607

The present invention is directed to polyurethanes containing (meth)acryloyl groups and to a method of manufacture thereof. The polyurethanes are produced by reacting a) a polyisocyanate component of which at least 50 NCO-equivalent-% consists of at least one acyclic aliphatic diisocyanate containing 6 to 12 carbon atoms in the aliphatic radical, b) an alcohol component containing (meth)acryloyl groups consisting essentially of a monohydric alcohol containing (meth)acryloyl groups and having a molecular weight of from 116 to 1000, c) at least one .beta.,.gamma.-ethylenically unsaturated ether alcohol containing 5 to 14 carbon atoms, and d) at least one polyhydric alcohol, at an NCO: OH equivalent ratio, based on all the starting components a) to d), of from 0.5:1 to 1:1.

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