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:
Jun. 29, 1976
Filed:
Sep. 23, 1974
Applicant:
Inventor:
Jon David Hartzler, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
264 ; C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 324 ; 260 / ;
Abstract
This invention relates to novel film- and fiber-forming polyhydrazide solutions (dopes) which are prepared in a solvent system comprising aqueous organic bases. Some dopes of this invention are optically anisotropic.