Integral molded article of polyolefin resin and silicone rubber andmethod for its production
CA 1304206 C · Owner: Saito, Masayuki · Inventors: Nakasuji, Katsuyoshi; Shimizu, Koji; Saito, Masayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Molded articles of polyolefin resin and silicone rubber which are tightly unified to form an integral article can be obtained from a grafted polyolefin resin and silicone rubber. The grafted polyolefin resin is obtained by heat-mixing in the presence of a free-radical initiator a polyolefin resin with a silicon compound having at least one aliphatically unsaturated organic group and at least one silicon-bonded hydrolyzable group. The grafted polyolefin resin is fabricated into a molded article and then a silicone rubber composition is brought into contact with its surface either directly or through a primer. A injection molding process can also be used. After the silicone rubber composition …
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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
- Granted June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.