Title:
OIL RESISTANT COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO2000027910
Kind Code:
A8
Abstract:
The present invention provides silicone compositions, cured elastomers thereof demonstrate improved resistance to oil. The compositions include a reactive silicone component, wherein the silicone component cures by way of an addition cure mechanism or a condensation cure mechanism; and a basic filler component to confer oil resistance to the cured elastomer. Where the reactive silicone component cures by way of an addition cure mechanism, an addition cure catalyst is also included. To that end, in one embodiment of the invention, the composition includes a vinyl-terminated silicone fluid, a hydrogen-functionalized silicone fluid; a basic filler to confer oil resistance to the cured elastomer and an addition cure catalyst. In another embodiment of the invention, the composition includes a hydroxy-terminated diorganopolysiloxane, a precipitated calcium carbonate, at least about 5 % by weight of a composition comprising magnesium oxide particles having a mean particle size of about 0.5 mu M to about 1.5 mu M and a mean surface area of about 50 M<2>/g to about 175 M<2>/g and a crosslinker.
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Inventors:
DECATO ALFRED A (US)
BENNINGTON LESTER D (US)
BENNINGTON LESTER D (US)
Application Number:
PCT/US1999/025622
Publication Date:
August 31, 2000
Filing Date:
November 02, 1999
Export Citation:
Assignee:
LOCTITE CORP (US)
DECATO ALFRED A (US)
BENNINGTON LESTER D (US)
DECATO ALFRED A (US)
BENNINGTON LESTER D (US)
International Classes:
C08K3/22; C08K3/26; (IPC1-7): C08K3/22; B05D3/02
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