Organosilicon composition comprising stabilizer

Details Organosilicon composition comprising stabilizer Organosilicon composition comprising stabilizer

1990-04-12

1991-06-18

Morgan, Kriellion

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524102, G08K 53435

Patent

active

050250485

ABSTRACT:
A composition comprising (A) (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 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 than two reactive sites; or (ii) a crosslinked or crosslinkable linear poly(organohydrosiloxane) polymer having a least 30% of its .tbd.SiH groups reacted to hydrocarbon residues derived from polycyclic polyenes having at least two carbon-carbon double bonds in their rings; and (B) as an antioxidant, a compound comprised of at least one hindered phenol and at least one hindered amine; and the process of making the same, are disclosed.

REFERENCES:
patent: 4198334 (1980-04-01), Rasberger
patent: 4877820 (1989-10-01), Cowan
patent: 4900779 (1990-02-01), Leibfried
patent: 4902731 (1990-02-01), Leibfried

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