Polyester composition
CA 1268875 C · Owner: Todo, Akira · Inventors: Nakano, Takayuki; Todo, Akira; Ueda, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
As an outline of the invention of the, present inventors the gist of the present invention, resides in the following: A polyester composition comprising:, (A) 100 parts by weight of a substantially linear polyester comprising, as the main constituent unit, ethylene terephthalate;, (B) 0.05 to 15 parts by weight of a crystallization promotor; and, (C) 0.1 to 15 parts by weight of at least one plasticizer selected from the group consisting of (C1), (C2), (C3) and (C4) which are defined as follows:, (C1) a condensation product of a compound of the formula (I):, (HQ - R)2S (I), wherein two R groups may be the same as or different from each other and represent a hydrocarbon group selected from …
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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 May 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.