Melamine-alkanolamine condensates and polyurethanes prepared therefrom
CA 1338544 C · Owner: Marugg, John E. · Inventors: Marugg, John E.; Gansow, Michael A. P.; Thoen, Johan A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Condensates of certain amino-substituted s-triazines, formaldehyde and alkanolamines are disclosed. These condensates can be used with or, without alkoxylation, in forming polyurethanes having desirable burn properties. Unlike melamine and certain melamine derivatives, only small amounts of the present condensates are required to provide effective flame retardancy.
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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 August 20, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2013.
- 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.