Process for preparing an aqueous dispersion, aqueous dispersion and aqueous coating composition
CA 1340416 C · Owner: Asahi Glass Company Ltd. · Inventors: Washita, Hiroshi; Ishida, Toru; Ohtsuka, Yoshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for preparing an aqueous dispersion which, comprises subjecting a monomer to emulsion polymerization in an aqueous medium in the presence of a fluorine-containing copolymer comprising units derived from a fluoroolefin and, units having a hydrophilic side chain. The process of the invention overcomes the disadvantages of prior art methods which utilizes an aqueous medium in order to avoid the use of organic solvents.
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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 March 2, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 2, 2016.
- 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.