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.:

US 6482514 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 19, 2002

Filed:

Apr. 06, 2001
Applicant:
Inventors:

Mitsugu Matsumoto, Minabegawa-mura, JP;

Akira Shimizu, Osaka, JP;

Seiichi Nishijima, Wakayama, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 5/602 ; D01D 5/06 ;
U.S. Cl.
CPC ...
D01F 5/602 ; D01D 5/06 ;
Abstract

The invention provides deodorant rayon fibers having a superior deodorization performance. The deodorant rayon fibers are produced by implanting a large quantity of fine grains produced by milling white charcoal in a matrix of the rayon fiber. After adding and mixing a water dispersion which disperses the large quantity of fine grains into viscose solutin, and then spinning, thereby the deodorant rayon fibers are produced. The fine grains obtained by milling the white charcoal do not form spheres with smooth surfaces, but their configurations are irregular with projections. As a result, even when they are implanted in the matrix of the rayon fiber, the projections tend to be exposed on the surfaces of the rayon fibers. The exposed fine grains adsorb odor gases into themselves, thereby their superior deodoization performance is performed.


Find Patent Forward Citations

Matsumoto, Mitsugu. (2002). Deodorant rayon fibers and method for producing the same (U.S. Patent No. 6482514). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6482514

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