Process for incorporating high molecular weight olefin based copolymers into a polymer matrix
CA 1308612 C · Owner: Joyce, William H. · Inventors: Joyce, William H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the incorporation of a copolymer of at least one liquid alpha-olefin or diolefin comonomer having at least 7 carbon atoms into a polymer matrix comprising:, (a) preparing a 2 to 6 carbon atom alpha-olefin polymer matrix/active catalyst mixture; (b) coating the matrix with a liquid, olefin having at least 7 carbon atoms; and (c) copolymerizing the olefin having at least 7 carbon atoms with a 2 to 6 carbon atom alpha-olefin, and simultaneously incorporating the copolymer into the matrix. D-15620
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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 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.