Aqueous antioxidant emulsions

Details Aqueous antioxidant emulsions Aqueous antioxidant emulsions

C - Chemistry, Metallurgy

09

K

31/71

C09K 15/06 (2006.01) C09K 15/08 (2006.01)

Patent

CA 1339918

Storage-stable, non-sedimenting emulsions comprising a) 10 to 80 % by weight, based on the emulsion, of one or more antioxidants, b) 0.25 to 10 % by weight, based on the emulsion, of a surfactant in the form of a fatty acid salt of formula R-COOY, wherein R is straight chain or branched C3-C18alkyl or straight chain or branched C3-C18alkenyl, or is phenyl(C3-C18)alkyl, and Y is an alkali metal, which salt is prepared in situ from the fatty acid, c) 0.25 to 10 % by weight, based on the emulsion, of a co-surfactant in the form of an alcohol of the general formula R'-OH, wherein R' is straight chain or branched C4-C19alkyl or straight chain or branched C4-C19alkenyl, or is phenyl(C4-C19)alkyl and d) water to make up 100 %, which emulsions are used for stabilizing emulsion-polymerised polymers and copolymers such as ABS.

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