Linear polyether resins
CA 1318448 C · Owner: Eldin, Sameer H. · Inventors: Eldin, Sameer H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
K-16880/, Linear polyether resins, Abstract of the Disclosure Linear polyether resins containing 100 to 1 mol % of the repeating structural unit of formula I, (I), and 99 to 0 mol % of the repeating structural unit of formula II (II), wherein A is a linear unsubstituted or methyl-substitutedmethyl-substitutodalkylene group containing 1 to 100 carbon atoms in the linear alkylene chain X denotes, bridging groups as defined in claim 1,and Y is an aromatic radical of a divalent phenol as defined in claim 1, are thermoplastics with high glass transition temperatures and excellent marhanical strength properties.
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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 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
- 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.