Process for the coagulation of an aqueous polymer latex
CA 1237230 A · Owner: Rohm And Haas Company · Inventors: Hung, Ju-Ming
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1 -, PATENT APPLICATION OF:, Ju-Ming Hung Docket No. 83-48, For: COAGULATION PROCESS ABSTRACT, A process for the coagulation of an aqueous polymer latex comprises contacting the aqueous polymer latex with an effective amount of an aqueous solution of a water soluble non-nucleophilic, non-oxidative salt of an alkaline earth metal and removing the coagulated polymer from the aqueous medium. The polymer prepared by the process has a unique combination of properties.
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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 May 24, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 24, 2005.
- 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
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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.