Formable vinyl chloride-based resin composition
CA 1237250 A · Owner: Shin-Etsu Chemical Co. Ltd. · Inventors: Tanizawa, Ryozo; Yanagisawa, Takeji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention proposes a foamable vinyl chloride-based resin composition capable of giving a shaped article having a cellular foamed structure and a beautiful surface with metallic luster. The composition comprises (a) 100 parts by weight of a vinyl chloride-based resin compound of a transparency formulation having a specified transparency (b), 0.1-5 parts by wight of a powder of a metal or alloy having a specified average particle diameter, (c) 0.01-2 parts by weight of an organic dye or pigment and (d) 0.1-5 parts by weight of a blowing agent.
Read the whole patent
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.
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.