ApplicationNo. 05/698816 filed on 06/23/1976
US Classes:524/425, Calcium carbonate, e.g., limestone, marble, etc.524/427, Solid polymer derived from unsaturated hydrocarbon monomer524/431, Transition metal atom (i.e., Fe,Co,Ni)524/432, Group IIB metal atom (i.e., Zn or Cd)524/448, Diatomite or diatomaceous earth, e.g., kieselguhr, infusorial earth, etc.524/493, Inorganic silicon-containing material having specified dimensions525/100, With saturated Si-C or Si-H reactant or polymer thereof; or with solid copolymer derived from at least one Si-C or Si-H reactant wherein at least one of the reactants forming the solid copolymer is saturated; or with SPFI wherein at least one of the necessary ingredients contains a Si-C or Si-H bond or with a reaction product thereof; or with a SICP containing a Si-H or Si-C bond525/103, Solid polymer from ethylenic reactants only is derived from heterocyclic reactant525/106, Solid polymer from ethylenic reactants only is derived from unsaturated hydrocarbon528/25, With organic silicon-free reactant528/33Silicon reactant contains two or more silicon atoms
ExaminersPrimary: Anderson, Harold D.
Attorney, Agent or Firm
International ClassesC08L 83/04 (20060101)
C08L 83/00 (20060101)
AbstractPolyolefin filled-organopolysiloxane compositions which are stable dispersions comprised of a continuous phase of essentially ungrafted organopolysiloxane and a discontinuous phase of finely divided solid particles of a homopolymer or copolymer prepared from an organic monomer or monomers, said monomer or monomers having aliphatic unsaturation, polymerized in the presence of said organopolysiloxane and their method of preparation are provided. Heat vulcanizable and room temperature vulcanizable organopolysiloxane compositions employing these novel dispersions and cured products thereof are also provided.