Thermoplastic olefin polymer and method of preparing same
CA 1331239 C · Owner: Cecchin, Giuliano · Inventors: Patroncini, Giovanni; Pelliconi, Anteo; Cecchin, Giuliano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of Disclosure, Disclosed is a thermoplastic olefin polymer having elastic properties, comprising:, a) greater than 60 to 85 parts of a crystalline polymer fraction (i) a copolymer over 85 wt. % of propylene and at least one alpha-olefin H2C=CHR (where R is H or C2-6 alkyl) having an isotacticity index of greater than 75 (ii) a, polybutene-1 having an isotacticity index of greater than 75 (iii) an ethylene homopolymer having a density of 0.95 g/cm3 or greater, or ethylene/alpha-olefin copolymer having a density of 0.94 g/cm3 or greater or (iv) polymer fraction (i) (ii) or, (iii) in combination with, or mixtures thereof alone or in combination with, from 10 to 90 parts, based on the …
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 2, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 2, 2011.
- 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.