Tetrahalophthalate esters as flame retardants for polyphenylene ether resins
CA 1329666 C · Owner: Laurel Industries, Inc. · Inventors: Bohen, Joseph Michael; Lovenguth, Ronald Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Flame retardant compositions containing at least one tetrahalophthalate ester and a polyphenylene ether resin are disclosed as is a method of improving the flame retardancy and processability of polyphenylene ether resins by using these tetrahalophthalate esters.
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 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
- 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.