Process for the production of vinyl chloride polymerizates
CA 1056997 A · Owner: Kemanord Ab · Inventors: Sjolin, Karen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the preparation of vinyl chloride polymerizates suitable for the production of plastisols by emulsion polymerization of a water dispersion of vinyl chloride, 0-20 per cent by weight of the weight of the vinyl chloride of at least one other ethylenically unsaturated copolymerizable monomer, at least one water soluble emulsifier and at least one water soluble initiator by agitation at elevated temperature and elevated pressure, characterized in that the dispersing of the monomer or the mixture of monomers is carried out in a pre-dispersion comprising water, at least one water soluble emulsifier and at least one aliphatic, alcohol containing 14 to 24 carbon atoms said …
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 June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 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.