C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/155, 117/183
C08G 65/00 (2006.01) B32B 15/08 (2006.01) B32B 17/10 (2006.01) C08F 220/04 (2006.01) C08F 220/32 (2006.01) C08G 18/28 (2006.01) C08G 18/62 (2006.01)
Patent
CA 1177198
Abstract A process for the preparation of copolymers containing hydroxyl groups by radical reaction of A) 10 to 30 % by weight of at least one glycidyl ester containing 12 to 14 carbon atoms, of an aliphatic saturated monocarboxylic acid with a tertiary or quaternary .alpha.-carbon atom; and B) 90 to 70 % by weight of at least two unsaturated copolymerisable monomers, at least one of which contains at least one carboxyl group, wherein component A) is introduced first to a reaction zone and is then reacted at a temperature of at least 140°C with component B) and a radical initiator, the component B) containing a monomer having carboxyl groups, wherein for the preparation of low-viscosity copolymers component A) is reacted at 140 to 200°C by substance polymerisation until a degree of re- action of a least 95 % is achieved, the component B) containing at least 3.3 % by weight of the monomer having carboxyl groups, and an article coated with a product of said process.
362662
Fischer Hannes
Plum Helmut
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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