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:
Mar. 31, 1987
Filed:
Mar. 27, 1986
Applicant:
Inventors:
Gordon W Calundann, North Plainfield, NJ (US);
Husam A Rasoul, Racine, WI (US);
Henry K Hall, Jr, Tuscon, AZ (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528176 ; 528183 ; 528184 ; 528190 ; 528191 ; 528192 ; 528194 ; 525445 ;
Abstract
Linear, melt processable, crosslinkable, thermotropic wholly aromatic ('liquid crystal') polyesters are prepared by polymerizing difunctional stilbene or tolan derivatives as comonomers with non-ethylenically and non-acetylenically unsaturated aromatic diols, dicarboxylic acids, hydroxy acids or reactive derivatives thereof. Shaped structures made from these polyesters are crosslinked using electron-poor monomers, such as maleic anhydride.