Foam systems and astm e-84 class i rated foams produced therefrom
CA 1302641 C · Owner: Mobay Corporation · Inventors: Reichmann, Wolfgang W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mo-2967, PU-231, FOAM SYSTEMS AND ASTM E-84 CLASS 1 RATED FOAMS PRODUCED THEREFROM, ABSTRACT OF THE DISCLOSURE Rigid flame resistant polyurethane foams are made by reacting an aromatic polyisocyanate with a mixture of 25-75% oligoester and another isocyanatereactive material in the presence of a blowing agent at an NCO index of less than 300. These foams which have an ASTM E-84 Class 1 rating are particularly useful in construction applications. Mo-2967
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.