Emulsion copolymer cation exchange resins and ion exchange process therewith
CA 1161597 A · Owner: Rohm And Haas Company · Inventors: Chong, Berni P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to one aspect of the invention as disclosed emulsion copolymer particles with diameters smaller than 1.5 micrometers and functionalized with cation exchange functional groups are prepared and suspended as emulsions in liquid media to form liquid cation exchange materials. Also emulsion copolymer particles with diameters less than 1.5 micrometers are functionalized with anion exchange functional groups by a method involving coagulation of the emulsion, according to another aspect of the invention disclosed herein. Both weakly basic and strongly basic anion exchange resins are prepared from aromatic or acrylic copolymers, and the emulsion coagula may be resuspended to form anion …
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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 January 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2001.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.