Polycarbonate resin mixtures
CA 1261097 A · Owner: General Electric Company · Inventors: Belfoure, Edward L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel compositions with high room temperature impact strength, high impact strength in thick-walled sections, and good weld line strength are provided in the form of resinous mixtures comprising: (a) a major amount of an aromatic carbonate polymer resin mixture of:, (i) an aromatic polycarbonate resin and, (ii) a poly(ester-carbonate) copolymer resin; and, (b) an impact modifying effective amount of a combination for (a) comprising:, (i) a multiphase composite interpolymer; and, (ii) a copolymer of an olefin with an acrylate or methacrylate comonomer.
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.