Dynamically vulcanized alloys adherent to styrene copolymers and polyester compositions
CA 2023255 A1 · Owner: Exxon Chemical Patents, Inc. · Inventors: Dharmarajan, Narayanaswami R.; Dharmarajan, Narayanaswami R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dynamically vulcanized alloy composition comprising a polyolefin, a chemically modified polyolefin a, functionalized polystyrene and a vulcanizable elastomer. The composition has superior adherence to styrenic copolymers and polyester compositions.
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 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 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.