Oriented thermoplastic vulcanizate
CA 2419247 A1 · Owner: Exxonmobil Chemical Patents Inc. · Inventors: Wang, Hsien-Chang; Tsou, Andy H.; Duvdevani, Ilan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Oriented films are prepared. A thermoplastic vulcanizate prepared by mixing , at least 20 wt.% of a thermoset rubber by weight of the total composition into a thermoplastic polymer are disclosed. After the mixture is prepared the thermoset rubber is entrained as discrete particles within the continuous thermoplastic polymer phase. The resulting composite is subjected to a stress either by pulling, blow molding, or any other film-forming process as is known in the art. This stress causes the continuous phase polymer molecules to become aligned or oriented in the direction in which the stress was applied thus creating the oriented thermoplastic vulcanizate of the invention. This …
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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 July 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2023.
- 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.