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:
Feb. 15, 2000
Filed:
Mar. 19, 1998
Applicant:
Inventors:
Keiko Katsuki, Sakaide, JP;
Makoto Yoshii, Sakaide, JP;
Assignee:
Kyowa Chemical Industry Co Ltd, Kagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C01F / ;
U.S. Cl.
CPC ...
524436 ; 423635 ; 423636 ; 524 80 ;
Abstract
A flame retardant having heat deterioration resistance which is composed of magnesium hydroxide particles having (i) an average secondary particle diameter, measured by a laser diffraction scattering method, of not more than 2 .mu.m, (ii) a specific surface area, measured by a BET method, of not more than 20 m.sup.2 /g and containing (iii) a total amount of an iron compound and a manganese compound of not more than 0.02% by weight in terms of metals, and a synthetic resin composition comprising the same and a molded article therefrom.