Binders containing ortho ester groups

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 18/34 (2006.01) B32B 27/40 (2006.01) C08G 18/00 (2006.01) C08G 18/08 (2006.01) C08G 18/28 (2006.01) C08G 18/32 (2006.01) C08G 18/42 (2006.01) C08G 18/64 (2006.01) C08G 18/70 (2006.01) C08G 65/18 (2006.01) C09D 7/12 (2006.01) C09D 133/04 (2006.01) C09D 175/00 (2006.01) C09D 175/04 (2006.01) C09J 11/00 (2006.01) C09J 175/04 (2006.01) C09K 3/10 (2006.01)

Patent

CA 2493338

A process for preparing polymers containing polyortho ester groups and optionally NCO groups by reacting A) and B) where A) is a polyortho ester containing at least one isocyanate-reactive group prepared by reacting at least one or more acyclic ortho esters with low molecular weight polyols having a functionality of 4 - 8 and a number-average molecular weight of 80 - 500 g/mol and B) is least one polyisocyanate. The polymers obtained from the process can be used to produce coatings, adhesive bonds and/or seals. The coating compositions can include one or more of the above-described polymers, optionally polyisocyanates, catalysts, and optionally auxiliaries and additives and can be used to coat substrates.

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