Title:
IMPROVED REGENERATED COLLAGEN FIBER AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3693491
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain regenerated collagen fibers having the drape, gloss and touch of natural protein fibers and useful as a substitute for human hair, animal hair or guts, etc., by subjecting the collagen and a diamine having a disulfide bond to an amidation reaction using a condensing agent.
SOLUTION: The regenerated collagen fibers having mercapto groups and/or disulfide bonds which have a sulfur content of 0.3-5.1 wt.% based on the collagen are obtained by subjecting the collagen and a disulfide band-having diamine of formula I [(n) and (m) are each an integer of 1-4] and/or formula II (R1 and R2 are each a 1-4C alkyl or benzyl) (for example, cystamine dihydrochloride) to an amidation reaction using a condensing agent [for example, 1-ethyl-3-(3- dimethylaminoiropyl)carbodiimide hydrochloride]. The regenerated collagen fibers have the drape, gloss and touch of natural protein fibers such as human hair, and are useful as a substitute for human hair, animal hair, guts, etc.
Inventors:
Shinichi Sakashita
Tsugawa Castle
Masaoki Goto
Kunihiko Matsumura
Norio Hirokawa
Tsugawa Castle
Masaoki Goto
Kunihiko Matsumura
Norio Hirokawa
Application Number:
JP11681998A
Publication Date:
September 07, 2005
Filing Date:
April 27, 1998
Export Citation:
Assignee:
Kaneka Corporation
International Classes:
D06M11/00; D01F4/00; D06M11/57; D06M13/02; D06M13/11; D06M13/133; D06M13/152; D06M13/248; D06M13/252; D06M101/00; D06M101/02; D06M101/10; D06M101/12; D06M101/14; (IPC1-7): D06M11/57; D06M13/248
Domestic Patent References:
| JP4127215U | ||||
| JP63191829A |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto