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:
Sep. 18, 1979
Filed:
Apr. 26, 1978
Thomas C Shutt, St. Louis, MO (US);
Vitrofil Corporation, Denver, CO (US);
Abstract
Fire retardant generally non-caking compositions of intimately intermixed ammonium phosphate, e.g. mono- and/or diammonium phosphate; sodium tetraborate containing molecularly bound water, e.g. the decahydrate, borax; and fractured finely ground solid powder particles of soda-containing silicate glass which have a high and irregular surface area and an active dry moisture absorbent surface condition for maintaining the particles of ammonium phosphate and sodium tetraborate in moisture protected disposition and for inhibiting the tendency of such particles to adhere to one another; the three components having an average particle size below about 4 mesh, the ammonium phosphate and sodium tetraborate being present in a combined predominant amount effective for imparting an active fire retarding property to cellulosic materials, and the resulting admixture being substantially dry and free flowing with the individual particles thereof in substantially uniform and non-caking distribution;