C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/67 (2006.01) C03C 25/10 (2006.01) C08J 3/28 (2006.01) C09D 4/00 (2006.01) C09D 175/16 (2006.01) G02B 6/44 (2006.01) C03C 25/02 (1995.01)
Patent
CA 2153581
The present invention relates to radiation- curable oligomers which can be prepared from polyether- triols or -triamines a, polyetherdiols or -diamines b, OH-functional acrylate monomers c and diisocyanates d, the molar ratio of a to b being between 0.1 to [sic] 1.1, the molar ratio of c to a being between 2.0 and 10 and the ratio of equivalents of the NCO groups of d to the hydroxyl and/or amino groups in the sum of a to c being between 0.9 and 1.0, characterized in that the oligomers have been prepared by employing at least one compound having 3 to 4 amino groups and having a number-average molecular weight of more than 4000 to 10,000 and/or at least one compound having 2 amino groups and having a number-average molecular weight of more than 4000 to 10,000, and in that the oligomers have double bond contents of from 0.25 to 0.44 mol/kg.
Hintze-Bruning Horst
Lobert Martin
Basf Lacke + Farben Aktiengesellschaft
Fetherstonhaugh & Co.
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