Global Patent Index - EP 0856030 A4

EP 0856030 A4 19991117 - LIGNIN-BASED FRICTION MATERIAL

Title (en)

LIGNIN-BASED FRICTION MATERIAL

Title (de)

AUF LIGNIN BASIERENDES REIBUNGSMATERIAL

Title (fr)

MATERIAU DE FROTTEMENT A BASE DE LIGNINE

Publication

EP 0856030 A4 19991117 (EN)

Application

EP 95939523 A 19951018

Priority

  • CA 2242554 A 19951018
  • US 9513286 W 19951018

Abstract (en)

[origin: WO9714747A1] This invention provides for a friction material composition suitable for friction element formulation. The composition comprises an essentially sulfur-free lignin with low water solubility. The lignin replaces from about 1 to about 30 % on a weight basis with the phenolic resin in the friction material composition. A method of reducing noise within the range of human hearing resulting from friction element performance is also provided.

IPC 1-7

C08K 5/13; C08L 97/02; C08J 5/14; B22C 1/18; B22C 1/22

IPC 8 full level

C08J 5/14 (2006.01); C08L 97/00 (2006.01); F16D 69/02 (2006.01)

CPC (source: EP)

F16D 69/022 (2013.01); F16D 69/025 (2013.01); F16D 2200/0065 (2013.01); F16D 2200/0073 (2013.01)

Citation (search report)

  • [XY] EP 0540835 A2 19930512 - RUETGERSWERKE AG [DE]
  • [A] GB 1529091 A 19781018 - BENDIX CORP
  • [Y] DATABASE WPI Week 8233, Derwent World Patents Index; AN 82-69381e, XP002104444, "Friction material e.g. for automobile brakes - contg. atomised iron powder, steel fibre, graphite and binder resin"
  • [A] DATABASE WPI Week 9408, Derwent World Patents Index; AN 94-062220, XP002104445, "Friction material prepn. for brakes preventing abnormal noise generation - comprises adding lubricant, filler, binder, friction regulating agent contg. cashew resin, etc. to base material contg. copper fibre."
  • See references of WO 9714747A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

DOCDB simple family (publication)

WO 9714747 A1 19970424; CA 2242554 A1 19970424; EP 0856030 A1 19980805; EP 0856030 A4 19991117; JP H11513726 A 19991124

DOCDB simple family (application)

US 9513286 W 19951018; CA 2242554 A 19951018; EP 95939523 A 19951018; JP 51576997 A 19951018