Lubricants for halogen-containing thermoplastic resins and compositions prepared therefrom
CA 1324230 C · Owner: Morton Thiokol, Inc. · Inventors: Hyde, Jeffrey R.; Goose, Miller H. Jr.; Wursthorn, Karl R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Lubricant compounds used to improve rheological properties and thus to facilitate processing of halogen-containing thermoplastic resin compositions in mixers, extruders etc. are addition products of mercaptans and olefins, the --SH group of said mercaptan joining to a carbon-carbon double bond of said olefin, attaching the H of said --SH group to one of the double-bonded carbons and attaching the S of said --SH group to the other of the double-bonded carbons, the carbons to which said S is attached in said lubricant compound being saturated said lubricant, compound having at least one free carboxyl group or salt of a free carboxyl group, said lubricant compound …
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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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
- 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.