Patent ID: 7671161
Filing Date: 2010-03-02
Classification: C08G

Abstract:
1. A process for making a fluorositicone having the formula: where M=R M′=(OH)R D=R D where both the subscript and stoichiometric coefficient a are zero or positive, the subscript and stoichiometric coefficient b is positive and the subscripts a and b satisfy the following relationship: b>0.4(a+b) and R 1 is selected from the group of 1 to 20 carbon atom monovalent alkyl, aryl, or alkaryl hydrocarbon radicals and terminally unsaturated alkenyl groups of from 2 to 10 carbon atoms; R 2 , R 3 are each independently any monovalent hydrocarbon radical: alkyl, aryl, or alkaryl of from 1 to 20 carbon atoms or R 1 and each R 4 and R 5 are any monovalent hydrocarbon radical: alkyl, aryl, alkenyl, or alkaryl of from 1 to 20 carbon atoms, and R 6 is a fluorine substituted 3 to 20 carbon atom monovalent hydrocarbon radical having no fluorine substitution on the alpha or beta carbon atoms of the radical and R 7 is any monovalent hydrocarbon radical: alkyl, aryl, or alkaryl of from 1 to 20 carbon atoms or R 6 by reacting 1) b moles of (R with 2) a moles of (R 3) a silanol having the formula R 4) an oxygenated promoter and 5) a basic catalyst.