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:
Nov. 02, 1976
Filed:
May. 23, 1975
Applicant:
Inventors:
James P Baldino, Haddonfield, NJ (US);
Joseph Feltzin, Wilmington, DE (US);
Assignee:
ICI United States Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C08G / ; C09K / ;
U.S. Cl.
CPC ...
260 / ; 252-81 ; 260 / ; 2604 / ;
Abstract
Diesters comprising the reaction product of tetrabromophthalic anhydride and a polyhydroxy compound containing at least 3 hydroxyl groups are disclosed. The diesters are prepared, in one step, by reacting tetrabromophthalic anhydride with the polyhydroxy compound at a temperature of from about 130.degree. C. to about 190.degree. C. in the presence of an alkaline material. The diesters are especially useful in the preparation of fire-retardant, self-extinguishing, polyurethane foams.