Elastomer compositions for tire treads having low rolling resistance and good wet and dry grip traction
CA 1304872 C · Owner: Futamura, Shingo · Inventors: Futamura, Shingo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Elastomer compositions which are particularly adapted for forming tire treads having low rolling resistance and good wet and dry grip traction comprise an elastomer having a Tg of -60°C or higher and low viscosity aromatic oil. Especially useful aromatic oils are those having a Saybolt Universal viscosity at 100°F of from about 50 to about 2500 SUS.
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 July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
- 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.