Propylene polymer compositions
CA 2116413 C · Owner: Mitsui Chemicals, Inc. · Inventors: Yamaguchi, Masayoshi; Inagaki, Hajime; Hiraoka, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a propylene polymer composition comprising (a) a propylene polymer, (b) an olefin type elastomer and (c) a polar group-containing olefin polymer composition obtained by heating (c-1) an olefin polymer containing a carboxyl group or an acid anhydride group in its molecule and (c-2) an amino compound each in a, specific amount. Also disclosed is a propylene polymer composition comprising (a) a propylene polymer (b) an, olefin type elastomer, (c-1) an olefin polymer containing a carboxyl group or an acid anhydride group in its molecule and (c-2) an amino compound, each in a specific amount. The propylene polymer compositions of the present invention are excellent in properties of …
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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
- Filed February 24, 1994 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.