Powders of tetrafluoroethylene copolymer and process for preparing the same
CA 1306326 C · Owner: Simasaki, Shuhei · Inventors: Tomihashi, Nobuyuki; Simasaki, Shuhei; Yoshimura, Tatsushiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Powders of tetrafluoroethylene copolymer having a non-spherical particle shape, a frictional packing ration of 20 to 100 % and an average particle size of 5 to 500 µm and, the tetrafluoroethylene copolymer is a tetrafluoroethylene/ hexafluoropropylene copolymer or a tetrafluoroethylene/ fluoro(vinyl ether) copolymer, and the powders are userful for powder coatings, particularly roto-molding roto-lining and, electrostatic coating and can provide coatings having a good appearance and no bubble.
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
- Granted August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 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.