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:
Aug. 24, 1999
Filed:
Feb. 29, 1996
Applicant:
Inventors:
Fumio Okisaki, Mie, JP;
Akinori Hamada, Yamaguchi, JP;
Shunichi Endo, Ibaraki, JP;
Genichiro Ochiai, Ibaraki, JP;
Assignee:
Tosoh Corporation, Yamaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C08K / ;
U.S. Cl.
CPC ...
523179 ; 523200 ; 523205 ; 523210 ; 524495 ; 524496 ; 524416 ; 524417 ; 252606 ; 252609 ; 2523 / ;
Abstract
A fire-retardant polymer composition is provided which comprises 100 parts by weight of a polymer such as polystyrene, 1 to 30 parts by weight of heat-expandable graphite, and 1 to 30 parts by weight of a phosphorus compound. The polymer composition is fire-retardant, and emits less smoke and less corrosive gas on burning.