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. 27, 1989
Filed:
Jun. 23, 1988
Applicant:
Inventors:
Assignee:
University of Delaware, Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264101 ; 264 85 ; 2642356 ; 2642358 ; 264291 ;
Abstract
Described and claimed is a process for obtaining high-modulus, high-strength linear polycondensates, e.g., polyamides, comprising the sequential steps drawing at room temperature, isothermal annealing at 180.degree.-270.degree. C., a second drawing at room temperature, and a second isothermal annealing at 120.degree.-260.degree. C., an orientation degree after the second drawing being 20-25.
Evstatiev, Michail. (1989). Preparation of high-modulus, high-strength linear polycondensates (U.S. Patent No. 4842789). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4842789
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile