Flame-retardant polypropylene resin composition
CA 1307069 C · Owner: Fukazawa, Toru · Inventors: Fukazawa, Toru; Akitaya, Shinichi; Tabata, Nobuchika
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention disclosed herein is connected with a polypropylene resin composition giving off no corrosive and poisonous gases, having excellent moldability providing molded articles with excellent mechanical strength and high flame retardance. The composition of the present invention is composed of predetermined amounts of a polyprolylene resin, a polyethylene resin polyammonium, phosphate or polyammonium phosphate modified by melamine resin and a 1,3,5-triazine derivative. This composition may additionally contain a predetermined amount of one or more of specific thiophosphites and may further contain a predetermined amount of an olefinic synthetic rubber or elastomer and a …
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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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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.