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:
Apr. 01, 1997
Filed:
Nov. 22, 1995
Applicant:
Inventor:
H Clay Linstid, III, Clinton, NJ (US);
Assignee:
Hoechst Celanese Corporation, Somerville, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528183 ; 528176 ; 528185 ; 528190 ; 528194 ; 528206 ; 528219 ; 528272 ; 528275 ; 528288 ; 528298 ; 528302 ; 528308 ; 5283086 ; 524779 ;
Abstract
A process for producing an anisotropic melt-phase forming polymer involving separate acetylation and polymerization steps, which utilizes controlled vapor phase reflux to reduce reactant loss and assist in maintaining the stoichiometry of the process.