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:
Dec. 10, 2002
Filed:
May. 24, 2001
David H. Blount, San Diego, CA (US);
Other;
Abstract
Flame retardant compositions of this invention are produced by incorporating a urea-organic compound condensate into a flammable organic material. The urea-organic compounds condensate are produced by heating urea and organic compounds that will condensate with or react with isocyanic acid and/or cyanic acid or heating urea first then reacting the condensation compounds with other organic compounds. The urea-organic compound condensate may be mixed with or reacted with carbonization auxiliaries, aldehydes and fillers to produce a urea-organic compound condensate composition which is incorporated in more flammable organic compositions such as polyurethanes, polyester resins, epoxy resins, vinyl resins and other resins. The urea-organic compound condensate salts of phosphorus, boron or sulfur containing compounds and the urea-organic compound condensate-aldehyde resins may also be used as the flame retardant compound in this invention. For example, polyurethane foams can be rendered less flammable with the urea-organic compound condensate or compositions and utilized as insulating materials.