Liquid crystalline polymer-poly(phenylene oxide) blends
CA 2294331 A1 · Owner: Soelch, Richard Robert · Inventors: Soelch, Richard Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Blends of thermotropic liquid crystalline polymers and unfunctionalized poly(phenylene oxides) in which the dispersed phase domain size is relatively small can be made by melt mixing the two types of polymers. These blends have good physical properties and can be used as molding resins.
Read the whole patent
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 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2020.
- 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.