Paintable adhesion promoter system for polyvinyl chloride plastisols
CA 1323131 C · Owner: Schering Berlin Polymers Inc. · Inventors: Wozniak, Don Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an improved plastisol composition comprising a finelydivided vinyl chloride polymer, filler a primary plasticizer, and a, polyaminoamide-polyimidazoline adhesion promoter. The improvement for overcoating said plastisol with an acid catalyzed topcoat comprises a plasticizer/promoter phase which comprises said primary plasticizer said, adhesion promoter, and an effective amount of a secondary plasticizer non ionic solvent effective in solvating the adhesion promoter in the plasticizer/promoter phase. The plasticizer/promoter phase is pre-formed for addition with the remaining ingredient for the plastisol composition. -33-
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 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2010.
- 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.