Polyester group containing polysiloxanes for lacquers and...

C - Chemistry – Metallurgy – 08 – G

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C08G 77/42 (2006.01) C08G 18/46 (2006.01) C08G 18/61 (2006.01) C08G 77/382 (2006.01) C08G 77/445 (2006.01) C09D 7/00 (2006.01) C09D 10/00 (2006.01) C09D 183/10 (2006.01)

Patent

CA 1283493

ABSTRACT OF THE DISCLOSURE Lacquers and molding compositions containing an anti-adhesive character producing and lubricity increasing amount of a polyester-containing polysiloxane corresponding to the formula Image (I) wherein A, B and D each represent -CH3 or -Z-R-Q; Z represents an alkylene group with 1 to 11 carbon atoms -(CH2)2SCH2- or -(CH2)3NHCO-; R represents an aliphatic, cycloaliphatic or aromatic group containing at least 3 carboxylate ester groups and having an average molecular weight ?? of 300 to 3,000; Q represents a reactive group capable of chemically reacting with a resin component of the lacquer or molding composition; x represents a number from 4 to 150; y represents a number from 1 to 6, in which an average molecule contains at least one group -Z-R-Q and the ratio of the number of -Z-R-Q groups to the number x is from 1 : 3 to 1 : 30. A process for imparting anti-adhesive character and increasing lubricity of lacquers and molding Compositions by incorporating such polyester-containing polysiloxanes into the compositions as additives is also disclosed.

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