Polyarylene thioether composition
CA 1308839 C · Owner: Katto, Takayuki · Inventors: Katto, Takayuki; Ichikawa, Yukio; Satake, Yoshikatsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a polyarylene thioether composition comprising: 100 parts by weight of a polyarylene thioether (A) which contains not less than 70 wt% of a repeating unit of , ; and 0.01 to 15 parts by weight of a polyarylene thioether (B), which is a nucleating agent and contains not less than 60 wt% of a repeating unit of , as the main constituent and has a melting point of not lower than 290°C or a melt crystallizationtemperature of not lower than 220°C. This composition may further comprise 0.1 to 300 part by weight of an inorganic filler and/or a fibrous filler. A 50% crystallization time,?1/2, at 250°C of the polyarylene thioether composition is not more than 1/1.5 of the 60% …
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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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 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.