Rubber composition for tyre treads and tyres
CA 2409426 A1 · Owner: Michelin Recherche Et Technique S.A. · Inventors: Labauze, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a crosslinkable or crosslinked rubber composition which can be used to produce a tyre casing tread one such tread having, in particular, improved wear resistance and a tyre casing having improved durability owing to the incorporation of said tread. The inventive composition is made from one or more diene elastomers and comprises at least one hydrocarbon plasticising resin which is miscible with the diene elastomer(s) said resin having a vitreous transition temperature Tg of between 10 ·C and 150 ·C and a molecular mass of between 400 and 2000 g/mol.Said composition comprises (pce: parts by weight per 100 parts of elastomer(s)): said hydrocarbon plasticising resin …
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 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2024.
- 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.