Process for suppressing the formation of oversized particles of thermoplastic resin produced by an aqueous dispersion procedure
CA 1203946 A · Owner: National Distillers And Chemical Corporation · Inventors: Mcclain, Dorothee M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided for obtaining particles of thermoplastic resin which comprises agitating said resin in the molten state in an aqueous dispersion system comprising a resin dispersing amount of an alkali metal soap and an oversized particle formation-suppressing amount of an alkaline earth metal soap and cooling the resulting dispersion to obtain said resin as finely divided particles of which no more than about 5 weight percent of the total exceeds an average diameter of about 420 microns.
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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 April 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 29, 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.