Fluororubber composition containing dispersed particles of cured silicone material
CA 2000366 C · Owner: Toray Silicone Company, Limited · Inventors: Saito, Masayuki; Hamada, Mitsuo; Yoshida, Keiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Curable fluororubber compositions exhibit excellent processability on roll mills and can be molded without sticking to or staining the mold surfaces when the composition contains from 0.1 to 30 weight parts per 100 weight parts of fluororubber of a finely divided cured silicone material in the form of a rubber gel or, resin. An epoxy-substituted alkoxysilane or a partial hydrolysis product thereof is present as an ingredient of the curable composition when it is desired to cohesively bond the cured fluororubber to a metal or plastic substrate.
Read the whole patent
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 October 10, 1989 and granted January 26, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2011.
- 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
Timeline From CIPO dates
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.