Vinyl chloride resin composition for powder molding
CA 2136290 A1 · Owner: Wakatsuki, Akira · Inventors: Fuse, Kazuyoshi; Wakatsuki, Akira; Nakatsuji, Yoshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided is a vinyl chloride resin composition for powder molding which is excellent in meltability at low temperatures and in powder characteristics and gives molded articles having excellent properties and which comprises a particle vinyl chloride resin a fine par-, ticle vinyl chloride resin a plasticizer, a stabilizer, and a pigment wherein the particle vinyl chloride resin is obtained by the polymerization in the presence of (A) a fatty acid ester of sorbitan and (B) a fatty acid ester of polyoxyethylenesorbitan, or in the presence of (C) a fatty acid ester of pentaerythritol and/or a fatty acid ester of dipentaerythritol, or in the presence of (A), (B) and (C). More preferably, the …
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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
- Filed November 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2016.
- 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.