Copolyesters, copolyesteramides, preparation of molded articles therefrom, and compositions thereof
CA 1333736 C · Owner: Kumazawa, Yumiko · Inventors: Wakui, Tadahiro; Yamagishi, Touru; Yoshino, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Copolyesters and copolyesteramides consisting of specific units can be injection molded at a low temperature into a part having a high heat distortion temperature. A filled composition is obtained by blending the copolyester or copolyesteramide with an inorganic filler. A magnetic resin composition is obtained by blending the copolyester or copolyesteramide with a magnetic powder.
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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 December 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 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.