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:
Jul. 16, 1996
Filed:
Dec. 15, 1994
Applicant:
Inventor:
Graham D Walmsley, Hickory, NC (US);
Assignee:
Hickory Springs Manufacturing Company, Hickory, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
521128 ; 521137 ; 521163 ; 521170 ; 521174 ; 521906 ;
Abstract
A flexible polyurethane foam is made by reacting an isocyanate with a polyol in the presence of a foam-forming agent and a fire-retardant additive. The fire-retardant additive comprises melamine and this is used in conjunction with a polyol which is of the polymer-modified polyol kind, i.e. a polyol containing a polymeric substance such as a dispersed alkanolamine/isocyanate polyaddition product.