Ethylene alkyl acrylate copolymers with improved heat resistance
CA 2435284 A1 · Owner: Domine, Joseph D. · Inventors: Domine, Joseph D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a copolymer of ethylene and at least 5 mol % of comonomer units derived from an alkyl acrylate or alkyl methacrylate wherein , the copolymer has a melt index of from 1 to 10,000 g/10 min and a maximum , peak melting temperature of at least 100 ~C. The alkyl group of the alkyl acrylate or alkyl methacrylate can e a linear or branched C1 to C12 group particularly n-butyl. The copolymer shows increased heat resistance as characterized by a temperature required to melt 50 % of the copolymer of at least 80 ~C, a temperature required to melt 80 % of the copolymer of at least 100 ~C, a temperature required to melt 100 % of the copolymer of at least 110 ~C. The …
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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 January 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2024.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.