Adhesion of vinyl plastisol coating
CA 1107875 A · Owner: Ford Motor Company Of Canada, Limited · Inventors: Robertson, Richard E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Vinyl dispersion coating compositions comprising (A) 10-40 parts by weight particulate vinyl resins (B) 5-80 parts by weight liquid plasticizer; (C) 1-20 parts by weight adhesion promotor comprising (i) a the thermoplastic phenolformaldehyde condensate made with molar excess of the phenol and (ii) a compound that provider low molecular weight difunctional linking moieties with increase in temperature wherein the molar ratio of the linking moieties releasable by (ii) to the total of hydrogen substituted ortho and para positions in (i) is at least about 3:4 preferably 1:1 or, greater, and the weight ratio of (A) to (C) is about 40:1- 1:1. Preferred plastisol sealing compositions can exhibit …
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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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 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.
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.