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:
Jan. 05, 1982
Filed:
Apr. 14, 1980
Applicant:
Inventors:
Tsutomu Nakamura, Yamaguchi, JP;
Yasuo Nakagawa, Iwakuni, JP;
Osamu Kai, Iwakuni, JP;
Keizo Shimada, Iwakuni, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428373 ; 264184 ; 428397 ; 428400 ;
Abstract
An aromatic polyamide fiber having an excellent dyeing property has a core-in-sheath type structure, in which the core portion is insoluble and the sheath portion is soluble in N-methyl-2-pyrrolidone at 35.degree. C.