Stability at moderate temperatures of motor vehicle components shaped from polyvinyl chloride resin compositions
CA 2022855 A1 · Owner: Argus Chemical Corporation · Inventors: Brilliant, Stuart D.; Bae, Kook J.; Croce, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Motor vehicle components are provided having an improved stability at moderate temperatures and shaped from polyvinyl chloride resin compositions comprising a, polyvinyl chloride resin at least one heat stabilizer in a, sufficient amount to impart heat processing stability and a, .beta.-diketone in a sufficient amount to provide after forming, stability at moderate temperatures not provided by any residual heat stabilizer, as well as polyvinyl chloride resin stabilizer compositions and polyvinyl chloride resin compositions containing such heat stabilizer compositions suitable for use in forming motor vehicle components comprising at least one heat stabilizer and a .beta.-diketone.
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
- Filed August 8, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2012.
- 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.