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US 5,175,332 AGranted
Cycloalkoxysilanes
AssigneeDow Corning Corporation
InventorsWayne J. Chatterton, Sean P. Davern, Carl A. Fairbank, Terrence K. Hilty
Life of this patent
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Abstract
A cycloalkoxysilane, having utility as an electron donor in the Ziegler-Natta polymerization of olefinic monomers, of the structure (R'O).sub.x (R').sub.y Si(OR).sub.4-x-y wherein R is independently selected from the group consisting of alkyl radicals having 1 to 5 carbon atoms and acyl radicals having 2 to 5 carbon atoms, R' is independently selected from the group consisting of a cyclopentyl radical, a cyclohexyl radical a cycloheptyl radical, and substituted radicals thereof, x is 1, 2, 3 or 4 and y is 0, 1 or 2.
Claims10
A cycloalkoxysilane having the structure
- (R'O).sub.x (R').sub.y Si(OR).sub.4-x-y
- wherein R is independently selected from the group consisting of alkyl radicals having 1 to 5 carbon atoms and acyl radicals having 2 to 5 carbon atoms. R' is independently selected from the group consisting of a cyclopentyl radical, a cyclohexyl radical a cycloheptyl radical, and substituted radicals thereof, x is 1, 2, 3 or 4 and y is 0, 1 or 2.
Dependencies are inferred from the claim text.