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. 27, 2009
Filed:
Nov. 08, 2004
Applicants:
Masahiro Nakazaki, Neyagawa, JP;
Kunihiro Ohshima, Neyagawa, JP;
Susumu Katsuen, Osaka, JP;
Atsushi Igami, Osaka, JP;
Inventors:
Masahiro Nakazaki, Neyagawa, JP;
Kunihiro Ohshima, Neyagawa, JP;
Susumu Katsuen, Osaka, JP;
Atsushi Igami, Osaka, JP;
Assignee:
Kurashiki Boseki Kabushiki Kaisha, Okayama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06M 13/192 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for producing a colored cellulose fiber, comprising: a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.