Patents Represented by Attorney John L. Koltos
  • Patent number: 4089833
    Abstract: A process aid for fluorosilicone compositions and polymers to prevent such polymers in the uncured state from sticking or partitioning on processing equipment comprising adding to the fluorosilicone polymer composition from 2 to 25% by weight of a non-halogenated process aid which is a diorganopolysiloxane polymer having a viscosity varying from 100,000 to 10,000,000 centipoise at 25.degree. C. The organo groups in such a polymer are selected from alkyl radicals, vinyl radicals, phenyl radicals and mixtures thereof wherein the vinyl concentration varies from 5 to 25% by weight. In the alternative that may be utlizied at the same concentration a non-halogenated process aid which is a polysiloxane composed of R.sub.2 SiO units and R SiO.sub.3/2 units wherein the polyme has a viscosity in the range of 5 and 10,000 centipose at 25.degree. C and its silanol content varying from .1 to 5% by weight and R is a monovalent hydrocarbon radical.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: May 16, 1978
    Assignee: General Electric Company
    Inventor: Verne G. Simpson