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. 23, 1993
Filed:
Apr. 09, 1992
Applicant:
Inventor:
James P Shepherd, Springfield, NJ (US);
Assignee:
Hoechst Celanese Corp., Somerville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528272 ; 528288 ; 528289 ;
Abstract
The invention discloses oligomeric compositions that have high thermal and uv stability as well as reactive end groups so that they may be reactively incorporated into polymer backbones when the polymers are prepared. The oligomeric moieties are capable of retaining their chemical structure intact at temperatures where the polymers are processed into articles, so that the finished articles contain the oligomeric moieties and possess good stability towards ultraviolet light. An example of such oligomer is illustrated by the following poly(aminoterephthalic acid). ##STR1##