C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/04 (2006.01) C08G 77/44 (2006.01) C08L 83/07 (2006.01) C08L 83/14 (2006.01)
Patent
CA 2064386
B&B2FF.APP Barnum & Brady Case 2 ORGANOSILICON COMPOSITIONS CONTAINING SILOXANE ELASTOMERS Abstract of the Disclosure This invention is directed to a composition comprising (A) a continuous phase of (i) a crosslinked organosilicon polymer or crosslinkable organosilicon prepolymer comprising alternating (a) cyclic polysiloxane or tetrahedral siloxysilane residues and (b) polycyclic hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings linked through carbon to silicon bonds, wherein at least one of the cyclic polysiloxanes or tetrahedral siloxysilanes (a) or the polycyclic polyenes (b) used to form the polymer or prepolymer has more thantwo reactive sites; or (ii) a crosslinked or crosslinkable linear poly(organo- hydrosiloxane) polymer having at least 30% of its ?SiH groups reacted to hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings; and (B) a discontinuous phase of a low molecular weight siloxane elastomer having at leasttwo hydrosilation reactable carbon-carbon double bonds.
Barnum Paquita E.
Brady Richard L.
Fetherstonhaugh & Co.
National Starch And Chemical Investment Holding Corporation
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