Method and skim stock composition for improving steel cord adhesion in multiple ply tire building
CA 1162674 A · Owner: The Sherwin-Williams Company · Inventors: Hogan, William L.; Korpics, Charles J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rubber ply skim stock anchored and reinforced by means of brass plated steel wire cords in said ply useful in the manufacture of multiple ply tires, characterized in that the skim stock includes the synergistic combination of at least one aromatic triazole and a cobalt or nickel soap of an oil soluble organic acid wherein in one hundred parts by weight of the rubber in said skim stock said triazole is present in an effective amount which does not exceed 0.5 parts by weight and said soap is present in an effective amount which does not exceed about 3.0 parts by weight. This form of skim stock when used in a pneumatic vehicle tire provides improved adhesion between the rubber of the tire …
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 February 21, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2001.
- 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.