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Expired Canadian patentCanada

Combustion modified isocyanate useful for rim structural foams

CA 1314340 C · Owner: Clatty, Jan L.R. · Inventors: Clatty, Jan L.R.

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Abstract From the Canadian patent

Mo-2955, PC-233, A COMBUSTION MODIFIED ISOCYANATE USEFUL FOR RIM STRUCTURAL FOAMS, ABSTRACT OF THE DISCLOSURE Polyisocyanate addition products, particularly polyurethane foams having improved flame resistance are obtained by reacting a combustion modified isocyanate with an isocyanate reactive component containing an isocyanate reactive material, a phosphorus containing combustion modifier and a blowing agent. The combustion modified isocyanate is made up of an organic polyisocyanate and a brominated diphenylether. Mo-2955

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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 March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 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.
FiledMay 2, 1988
GrantedMarch 9, 1993
Term endedMarch 9, 2010
Patent numberCA 1314340 C
Classification (IPC)C08G18/40 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 2, 1988Patent grantedMarch 9, 1993Term endedMarch 9, 2010

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.