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:
Mar. 13, 1990
Filed:
Jun. 23, 1988
Applicant:
Inventor:
Kaneyoshi Ashida, Farmington Hills, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C08G / ;
U.S. Cl.
CPC ...
252609 ; 252601 ; 252-7 ; 252-3 ; 521120 ; 521123 ; 521128 ; 423545 ; 528 48 ; 528 52 ;
Abstract
Ammonium sulfate powder is employed, alone, or in conjunction with a weakly basic powder to neuturalize the acidity of the sulfate, as a flame retardant for isocyanate-based foams and, in particular, rigid and flexible polyurethane foams.