Additives for improving low modulus of room temperature vulcanizable compositions
CA 2056487 A1 · Owner: General Electric Company · Inventors: Lucas, Gary M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Docket No.: 60S1-1341, Abstract of the Invention Scavenger-free, shelf-stable, room temperature vulcanizable organopolysiloxane compositions having improved low modulus properties are provided, comprising a polyalkoxy-terminated organopolysiloxane a, diorganotin bis beta-diketonate condensation catalyst and a low modulus-, enhancing additive which is a low viscosity monoalkoxy-terminated polydiorganosiloxane. In preferred embodiments the RTV composition further, comprises filler a beta-ketone, a polyalkoxy silane cross-linking agent and anadhesion promoter which is preferably a dual adhesion promoting system comprising a cyano-functional polyalkoxy silane and an isocyanato-functional …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 28, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.