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:
Apr. 22, 2003
Filed:
Mar. 17, 1999
Hiroaki Ohnishi, Otake, JP;
Yoshihiro Nishihara, Otake, JP;
Hiroshi Hosokawa, Otake, JP;
Seizo Oishi, Otake, JP;
Masako Iwamoto, Otake, JP;
Yasuyuki Fujii, Otake, JP;
Hajime Itoh, Otake, JP;
Naoto Ohsuga, Nagoya, JP;
Gary J. Capone, Decatur, AL (US);
Charles W. Emerson, Hartselle, AL (US);
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
The present invention is directed to chitosan-containing acrylic fibers having a total chitosan content of 0.05 to 2% by weight and an extractable chitosan content of not less than 0.03% by weight to less than the total chitosan content. The antimicrobial activity of the chitosan-containing acrylic fibers of the present invention can persist for a long period of time and is not deteriorated even when subjected to posttreatments, such as dyeing and bleaching of fibers, and treatments in usual service environments of fiber products, such as washing and ironing.