Compositions and coatings of phosphorus- containing film formers with organo silane and coated substrates
CA 1287431 C · Owner: Das, Balbhadra · Inventors: Das, Balbhadra; Klett, Michael W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved flame retardant coatings are produced from curable chemical mixtures having at least one phosphorus-containing film former which has hydroxyl and/or methylol functionalities and at least one, nucleophilic organo silane. The silane is capable of undergoing nucleophilic reaction with hydroxyl radical displacement and/or capable of Michael's addition type of reaction via a nucleophilic phosphine compound. Additionally, the curable chemical mixture can involve an interaction polymeric product of the phosphorus-containing film former and nucleophilic organo silane. Also solvents such as water curing, agents, fillers and/or extenders may be present in the mixture.
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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 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2008.
- 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.