Olefin polymer composition having low smoke generation and fiber and film prepared therefrom
CA 2236634 C · Owner: Montell North America Inc. · Inventors: Starsinic, Michael E.; Becker, Ronald F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polymer composition and fiber, film or sheet prepared therefrom, which contains (i) an olefin polymer containing an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, and ii) a stabilizer system distributed throughout the polymer, the stabilizer system including (a) a phosphite selected from 2,2',2"-nitrilotriethyl-tris(3,3',5,5'tetra-tert.butyl-1,1-biphenyl-2,2'-diyl)phosphite and tris(2,4-ditert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine. Also disclosed is a method for preparing a polyolefin fiber film, or sheet, which includes adding the above stabilizer to an olefin polymer containing an acid neutralizing agent other than a …
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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 May 1, 1998 and granted July 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 1, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 2020.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.