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. 08, 1977
Filed:
Feb. 27, 1976
Applicant:
Inventors:
Lowell Saferstein, Piscataway, NJ (US);
Robert W Stackman, Morristown, NJ (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ;
Abstract
Self-extinguishing, non-dripping, melt processible copolyesters of reduced toxicity are provided from a mixture of diols comprising from about 25 to 60 mole percent of phenolphthalein and from about 75 to 40 mole percent of ethylene glycol and a dicarboxylic acid comprising isophthalic acid and/or terephthalic acid.