Abrasion resistant polyurethane article having a high rolling coefficient of friction
CA 1136332 A · Owner: Westinghouse Electric Corporation · Inventors: Mendelsohn, Morris A.; Izzo, Carl P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
47,328, ABRASION RESISTANT POLYURETHANE ARTICLE HAVING A HIGH ROLLING COEFFICIENT OF FRICTION ABSTRACT OF THE DISCLOSURE, An abrasion resistant traction article is made comprising a cured, high traction, extended polyurethane composition, comprising the cured reaction product of: (1) 100 parts of a prepolymer made from polyoxytetramethylenediol polyoxyisopropylenediol and toluene diisocyanate and (2) 8.0 parts to 10.0 parts of methylene bis (0-chloroaniline) acting as a chain extender.
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 November 23, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 1999.
- 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.