Liquid modified ethylenic random copolymer and its use
CA 1302002 C · Owner: Tsutsui, Toshiyuki · Inventors: Kashiwa, Norio; Tsutsui, Toshiyuki; Toyota, Akinori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid modified ethylenic random copolymer selected from an epoxidization product of a liquid ethylenic random copolymer of ethylene and an alphaolefin having 3 to 20 carbon atoms and a hydroxylation product of a liquid ethylenic random copolymer of ethylene and an alpha-olefin having 3 to 20 carbon atoms. The modified copolymer is characterized in that (i) the liquid modified ethylenic random copolymer has an ethylene component content of 10 to 85 mole % and an alpha-olefin component content of 15 to 90 mole % (ii), in the 13C-NMR spectrum of the liquid modified ethylenic random copolymer, signals of .alpha..beta. and .beta.? based on the methylene chain between two adjacent tertiary …
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 May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.