Rubbery blend having low permanent compression set
CA 2118652 A1 · Owner: Duval, Guy Paul Rubens · Inventors: Duval, Guy Paul Rubens; Ngoc, Hung Dang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Seals for automotive body applications (such as windows, hoods, trunks and doors) and building applications (such as, window glazing gaskets and weather strips) should be dimensional stable provide, low compression set, and offer outstanding sealing characteristics over a broad temperature range. They must be capable of sealing out noise, wind and water while providing long-term ultraviolet light resistance. This invention discloses a highly crosslinked nitrile rubber composition which can be easily blended with polyvinyl chloride to make compositions having excellent characteristics for automotive body seals and building industry applications including dimensional stability low, …
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 March 9, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2016.
- 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.