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:
May. 17, 1977
Filed:
Feb. 13, 1974
Robert W Stackman, Morristown, NJ (US);
Frank M Berardinelli, Millington, NJ (US);
Celanese Corporation, New York, NY (US);
Abstract
An improved flame retardant molding composition of polypropylene terephthalate or polybutylene terephthalate is provided. The composition includes in intimate admixture with the non-halogenated polypropylene terephthalate or polybutylene terephthalate an oxide of antimony, a reinforcing agent (e.g. a glass fiber reinforcing agent), and a polyalkylene-2,5-dibromoterephthalate. Unlike the flame retardant molding compositions of the prior art, the components of the same tend to be non-exuding during utilization of the resulting three-dimensional shaped article at elevated temperatures (e.g. after 66 hours at 175.degree. C.) and thereby render the same suitable for attractive utilization in an even wider range of applications.