ORGANOSILOXANE COMPOSITIONS

摘要

A copolymer of polyalkylphenyl siloxane and alkylfluoroalkyl siloxane obtainable by reacting a dispersion of ingredient (i) an alkylfluoroalkyl siloxane and ingredient (ii) one or more polyalkylphenyl siloxane(s) in the presence of ingredient (iii) a basic catalyst at a temperature of between 40° C. to 300° C.

主权项

1. A copolymer of polyalkylphenyl siloxane and alkylfluoroalkyl siloxane obtainable by reacting a dispersion of
ingredient (i) an alkylfluoroalkyl siloxane comprising units of the following structure:in which each R group may be the same or different and is selected from an alkyl having from 1 to 6 carbon atoms, n is an integer, x is zero or an integer from 1 to 6 and R1 is a perfluoroalkyl group which is either linear or branched and may contain from 1 to 12 carbon atoms and
ingredient (ii) one or more polyalkylphenyl siloxane(s) comprising units of the following structure:in which each R2 group is the same or different and is selected from an alkyl group having from 1 to 6 carbon atoms and t is an integer;
in the presence of ingredient (iii) a basic catalyst at a temperature of between 40° C. to 300° C.