Thermoplastic compositions of crystalline polyolefin and ethylene-containingcopolymer
CA 1295763 C · Owner: Deyrup, Edward Johnson · Inventors: Deyrup, Edward Johnson; Tam, Coretta Chan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A melt processible multi-phase thermoplastic composition comprising a blend of:, (A) 5-95 parts by weight of a crystalline polyolefin resin of a substantially saturated homopolymer or copolymer of polymerized monomer units of C2-C8 alpha monoolefins forming one phase of the composition, (B) 5-95 parts by weight of a crosslinked ethylene-containing copolymer forming a second phase of the composition comprising units derived from (1) ethylene, (2) alkyl acrylates or alkyl methacrylates wherein the alkyl group contains 1-6 carbon atoms or vinyl esters of monocarboxylic acids having 2-6 carbon atoms, and (3) glycidyl acrylate or glycidyl methacrylate. AD-5498
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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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 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.