Olefin polymer compositions containing metal carboxylate cross-linking retarders
CA 2283482 A1 · Owner: Exxonmobil Chemical Patents, Inc. · Inventors: Arjunan, Palanisamy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polymer composition comprising a linear low density ethylene copolymer containing about 1-30 mol % of alpha-olefin comonomer and having improved resistance to cross-linking during thermoforming are provided. The ethylene copolymer has a narrow compositional distribution of chain branching as reflected by compositional distribution breadth index of at least 50 % and is stabilized to inhibit cross-linking during thermoforming by the addition of an effective amount of a metal carboxylate of C1-C22 carboxylic acid.
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
- Filed February 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2020.
- 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.