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:
Jun. 02, 1987
Filed:
Nov. 04, 1985
Dale R Hall, Avon Lake, OH (US);
Robert L Jackson, Fairview Parks, OH (US);
Charles V Purks, Avon Lake, OH (US);
The BF Goodrich Company, Akron, OH (US);
Abstract
This invention relates to flame retarding compositions comprising flame retardants selected from pentate salts and nitrogen-containing phosphates wherein one or both are encapsulated in a material to reduce contacts between the flame retardants during processing and to thus reduce or eliminate pre-reaction between the two flame retardants, which pre-reaction, normally leads to degradation of flameproofing properties of the compositions. The invention is also directed to flame retardant polyurethane compositions containing a polyurethane resin and both of the flame retardants. As between the flame retardants, amount of the phosphate is about 10-99% whereas amount of the pentate salt is about 90-1%, on weight basis. In the polyurethane compositions, combined weight of the two flame retardants is about 10-60%, based on the weight of the polyurethane resin and the two flame retardants.