C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/67 (2006.01) C08G 18/28 (2006.01) C08G 18/32 (2006.01) C08G 18/48 (2006.01) C08G 18/73 (2006.01) C09D 175/16 (2006.01)
Patent
CA 2050115
The present invention relates to aliphatic polyurethanes which contain acryloyl groups and are based on the reaction product (at an NCO/OH equivalent ratio of 0.5:1 to 1:1) of a) 1.0 mole of a diisocyanate component containing at least 50 equivalent percent, based on NCO equivalents, of hexamethylene diisocyanate with b) 0.5 to 0.85 moles of at least one monohydric alcohol having a molecular weight of 116 to 144 and containing acryloyl groups, c) 0.15 to 0.5 moles of a monohydric alcohol having a molecular weight of 154 to 2000 and containing ester groups or a mixture of alcohols having an average molecular weight of 154 to 2000 and an average hydroxyl functionality of 0.8 to 1.5 and containing ester groups and d) 0.3 to 0.5 moles of at least one polyhydric alcohol having a molecular weight of 62 to 2000. The present invention also relates to a process for the preparation of these polyurethanes.
Fischer Wolfgang
Meixner Jurgen
Pedain Josef
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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