Stock material or miscellaneous articles – Composite – Of silicon containing
Patent
1994-06-20
1996-04-30
Glass, Margaret W.
Stock material or miscellaneous articles
Composite
Of silicon containing
528 31, 528 15, 528 27, 528 25, 528 26, 524731, 524770, 524718, 524862, 524 89, 524268, 524588, 524 81, 524359, B32B 904, C08K 554, C08K 501, C08F28312
Patent
active
055123767
ABSTRACT:
A reactive component, which is curable to form a nonpolar polymer containing silicon and carbon atoms, and having a glass transition temperature of at least 20.degree. C., is mixed with an antiplasticizer. The resulting mixture, a curable composition, is cured to form a composition having an increased modulus. The reactive component preferably comprises a polyene having at least two hydrosilation reactive carbon-carbon double bonds (e.g., dicyclopentadiene), and a silicon compound having at least two hydrosilation reactive .ident.SiH groups. Preferably the silicon compound comprising at least one member selected from the group consisting of cyclic polysiloxanes, tetrahedral siloxysilanes, and linear polysiloxanes. Preferably the resulting cured composition is crosslinked, due to at least one member selected from the group consisting of the polyene and the silicon compound having more than two hydrosilation reactive sites. Preferably the curable composition further comprises a hydrosilation catalyst.
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Brady Richard L.
Thompson Samuel A.
Glass Margaret W.
Hercules Incorporated
Kuller Mark D.
O'Brien Robert P. O'Flynn
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