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:
Dec. 12, 2000
Filed:
Jul. 10, 1998
Applicant:
Inventors:
Shinichi Sakashita, Kobe, JP;
Mamoru Tsugawa, Kobe, JP;
Masaoki Goto, Kobe, JP;
Kunihiko Matsumura, Kobe, JP;
Norio Hirokawa, Kobe, JP;
Assignee:
Kaneka Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
530356 ; 530402 ; 514 21 ; 514801 ; 424 701 ; 424 702 ; 424 704 ; 424 7051 ;
Abstract
The present invention provides a regenerated collagen fiber exhibiting a draping, luster and feel close to those of a natural protein fiber such as a human hair and capable of application of a permanent wave treatment, and a method of manufacturing the regenerated collagen fiber. The amino group and/or carboxyl group of the regenerated collagen is chemically modified to introduce a mercapto group and/or a disulfide linkage to the regenerated collagen. When subjected to a permanent wave treatment, the regenerated collagen fiber retains the waved shape.