The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2015
Filed:
Jul. 04, 2012
Minh-tan Ton-that, Montreal, CA;
Tri-dung Ngo, Laval, CA;
Johanne Denault, Longueuil, CA;
Christian Belanger, Boucherville, CA;
Wei HU, Longueuil, CA;
Minh-Tan Ton-That, Montreal, CA;
Tri-Dung Ngo, Laval, CA;
Johanne Denault, Longueuil, CA;
Christian Belanger, Boucherville, CA;
Wei Hu, Longueuil, CA;
National Research Council of Canada, Ottawa, Ontario, CA;
Abstract
A new approach for improving fire resistance of cellulosic materials is provided, especially when the cellulosic material is to be used in polymer composites. Cellulosic material is treated with an aqueous mixture of alkali metal or ammonium hydroxide and alkaline earth or aluminum metal salt simultaneously with or within a short period of time of preparing the mixture. The treated cellulosic material becomes self-extinguishing and may also have improved thermal stability, improved interfacial thermal resistance, improved resistance to damage by oxidants and other chemical agents, improved resistance to biological agents and/or improved resistance to damage by ultra-violet light.