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, 1991
Filed:
Aug. 03, 1990
Applicant:
Inventors:
Edward D Weil, Hastings-on-Hudson, NY (US);
Navin G Patel, Farmingdale, NY (US);
Robert M Leeuwendal, Maastricht, NL;
Assignee:
Stamicarbon B.V., AC Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
524127 ; 524398 ; 524405 ; 524414 ; 524415 ; 524431 ; 524492 ; 524493 ; 524417 ; 524445 ;
Abstract
A flame retardant polyamide composition including flame retardant effective amounts of (a) an iron compound and (b) a char forming thermoplastic polymer having aromatic groups in the backbone. A char stabilizing compound (c) may also be present. In a preferred embodiment (b) is a polyphenylene ether. In a preferred embodiment, (c) is anhydrous zinc borate or a wollastonite.