Expired Canadian patentCanada
Method of improving the adhesion of a heat activatable polyurethane adhesive to a vinyl substrate
CA 1108024 A · Owner: Champion International Corporation · Inventors: Fogle, Ozzie; Cooley, James
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The adhesion of a heat activatable polyurethane adhesive to a vinyl substrate is improved by admixing the adhesive with an N-substituted-2-pyrrolidone and/or an ethoxylated alkyl phenol.
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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 26, 1979
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1108024 A
Classification (IPC)C09J175/04 +1 more
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.