Elastomeric, ethylenically unsaturated polyurethanes and...

Details Elastomeric, ethylenically unsaturated polyurethanes and... Elastomeric, ethylenically unsaturated polyurethanes and...

C - Chemistry, Metallurgy

08

G

403/14, 402/144,

C08G 18/28 (2006.01) C08F 299/06 (2006.01) C08G 18/67 (2006.01) C08L 75/08 (2006.01) G03F 7/032 (2006.01)

Patent

CA 1180846

ABSTRACT OF THE DISCLOSURE A polyurethane corresponding to the formula: Image (I) wherein Q is a divalent, mononuclear or dinuclear aromatic radial which is unsubstituted or is substituted by lower alkyl groups and which can contain, as a linking member, a lower alkylene group, X is one of the groups -O-Ph-Z-Ph-O- and -OOC- (CH2)y-COO-, Ph being an optionally substituted phenylene group, z being an alkylene group having 1 - 4 carbon atoms and y being a number from 2 to 12, R is a hydrogen atom or a methyl group, Y is an alkylene radical having 2 - 6 carbon atoms, m is an integer from 4 to 50 n is an integer from 1 to 6 and 0 is an integer from 4 to 20 having the properties of thermolasts and being hardenable to give elastic products. It is suitable for use as a hardenable constituent of photopolymerizable materials.

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