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. 11, 1986
Filed:
Feb. 11, 1985
Applicant:
Inventors:
Han Sik Yoon, Seoul, KR;
Tae Won Son, Seoul, KR;
Chul Joo Lee, Seoul, KR;
Byung Ghyl Min, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428364 ; 428373 ;
Abstract
Ultrahigh tenacity, ultrahigh modulus fibers are provided. The fibers are prepared by dissolving a mixture of poly(phenyleneterephthalamide) polymer with an inherent viscosity of at least 5 and a regularly ordered aromatic-aliphatic copolymer with an inherent viscosity of at least 2 in concentrated sulfuric acid to form a spinning solution, which solution is subsequently subject to extrusion by a known per se dry-jet spinning process.