Polysiloxane release coating of a substrate
CA 1064640 A · Owner: Dow Corning Corporation · Inventors: Sandford, Robert W. (Jr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This application discloses a solventless coating composition and a process for coating substrates producing intermediate release values, improved abrasion resistance and superior physical properties. The compositions are essentially solventless and when cured give highly abrasion resistant coatings, non-blocking characteristics fast cure, and a general overall aesthetic appearance. An example of coating a substrate is the coating of paper products to give release from adhesives.
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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 1996.
- 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.