Light-stable polyolefins
CA 1184331 A · Owner: Borg-Warner Chemicals, Inc. · Inventors: Lewis, Elyse B.; Valdiserri, Leo L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An olefin polymer composition having improved stability to deterioration resulting from exposure to ultraviolet radiation. The enhanced stability results from the effective presence of a combination of an organic phosphite ester and a hydroxybenzophenone.
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 March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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.