The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 1996
Filed:
Jun. 20, 1994
Richard L Brady, Wilmington, DE (US);
Samuel A Thompson, Wilmington, DE (US);
Hercules Incorporated, Wilmington, DE (US);
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.