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:
Jan. 02, 2001
Filed:
Feb. 20, 1998
Applicant:
Inventors:
Assignee:
Tohto Kasei Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 7/14 ; C08L 6/703 ; C08L 6/900 ; C08L 7/700 ;
U.S. Cl.
CPC ...
C08K 7/14 ; C08L 6/703 ; C08L 6/900 ; C08L 7/700 ;
Abstract
A halogenated flame retardant for a thermoplastic resin with carbonyl linkages in the main chain such as polyethylene terephthalate or polybutylene terephthalate is obtained by the modification of a brominated bisphenol A epoxy resin optionally advanced with brominated bisphenol A by reaction of the epoxy groups with a C,-C,alcohol such as methanol or butanol to the extent that the ratio of unmodified epoxy groups to alcohol-modified epoxy groups is from 2/1 to 1/2.