Title:
FRICTIONAL MATERIAL
Document Type and Number:
Japanese Patent JP3639847
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a frictional material for brakes, etc., excellent in physical properties such as coefficient of friction and abrasion wear as well as biodegradability and hardly having bad influence upon natural environment, by using a bacterial cellulose as a fiber-reinforcing agent.
SOLUTION: This frictional material consists essentially of (A) a thermosetting resin binder, (B) a fiber reinforcing material, (C) an inorganic filler and (D) an organic friction controller and a bacterial cellulose is used as at least a part of the component B. Furthermore, a content of the collulose is 1-35wt.% based on total amount of the frictional material and the frictional material contains preferably 5-25wt.% component A, 10-50wt.% component B, 20-70wt.% component C and 5-25wt.% component D and the cellulose is obtained by culturing a bacterium having bacterial cellulose-producing ability, synthesizing gel-like cellulose fiber in a bacterial cell body and discharging the fiber to the outside of the cell body.
Inventors:
Yoshiharu Doi
Satoshi Kusaka
Kimura Shigeyuki
Akira Imamura
Satoshi Kusaka
Kimura Shigeyuki
Akira Imamura
Application Number:
JP11647396A
Publication Date:
April 20, 2005
Filing Date:
May 10, 1996
Export Citation:
Assignee:
RIKEN
Akebono Brake Central Technology Co., Ltd.
Akebono Brake Central Technology Co., Ltd.
International Classes:
F16D69/02; C08J5/14; C08L1/02; C08L101/00; C08L101/16; C09K3/14; (IPC1-7): C08J5/14; C08L1/02; C08L101/00; C09K3/14; F16D69/02
Domestic Patent References:
| JP8061407A | ||||
| JP8061385A | ||||
| JP4216893A | ||||
| JP62036467A |
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Hidemi Matsukura
Tsutomu Toyama
Tsutomu Toyama
Yoshiyuki Kawaguchi
Hidemi Matsukura
Tsutomu Toyama
Tsutomu Toyama
Yoshiyuki Kawaguchi