Polyolefin composition
CA 1290884 C · Owner: Yamada, Kunio · Inventors: Yamada, Kunio; Miyazaki, Kohzoh; Nomura, Ryouichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polyolefin composition is disclosed comprising a polyolefin having incorporated therein a stabilizer having a triazine ring in the molecule thereof and a polymer having an acidic hydrogen atom. The composition is free from coloration or discoloration while retaining an improved weather resistance.
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 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
- 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.