Process for the preparation of a polymer dispersion
CA 1206665 A · Owner: Clariant Gmbh · Inventors: Zimmerschied, Klaus; Rinno, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure:, An aqueous polymer dispersion is prepared by polymerizing at least two different olefinically unsaturated monomers in an aqueous medium at 3 temperature of 30 to 100°C and in the presence of a polymerization initiator which forms free radicals, an emulsifier a protective, colloid and, if appropriate a chain regulator. If car-, boxymethylcellulose having a specific degree of substitution is used as the protective colloid a dispersion, which is particularly suitable as a binder for a gloss paint having a gel structure is obtained.
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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 June 24, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 2003.
- 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.