C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/1305, 400/20
C08L 83/10 (2006.01) C08G 63/695 (2006.01) C08G 63/91 (2006.01) C08G 77/42 (2006.01) C08L 67/00 (2006.01)
Patent
CA 1165934
ABSTRACT OF THE DISCLOSURE Organopolysiloxane modified organic polymers are prepared by reacting, at elevated temperatures, a mixture containing an organic poly- mer free of silicon atoms and having C-bonded hydroxyl groups, with an organopolysiloxane containing groups selected from the class consisting of Si-bonded hydroxyl groups, alkyl groups which are bonded to silicon via oxygen and mixtures thereof, in the presence of water which is in excess of that formed during the reaction. This results in the provision of sub- stantially higher molecular weight organic polymers having C-bonded hydroxyl groups. The so-produced organopolysiloxane modified organic polymer has a viscosity which is less likely to change in the presence of water.
371910
Deubzer Bernward
Esterbauer Josef
Frey Volker
Solbrig Christian
Borden Ladner Gervais Llp
Esterbauer Josef
Frey Volker
Solbrig Christian
Wacker-Chemie Gmbh
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