Title:
BEARING AND RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/1993/020148
Kind Code:
A1
Abstract:
A bearing molded from a resin composition comprising 39.9-80 wt.% of a polycyanoaryl ether mainly constituted of repeating units, represented by general formula (I) (wherein Ar represents (a), (b), (c), (d), (e), (f) or (g)) and having a reduced viscosity [$g(h)¿sp?/c] of 0.6 dl/g or above at 60 °C when dissolved in a concentration of 0.2 g/dl in p-chlorophenol, 5-30 wt.% of a fluororesin and 10-55 wt.% of at least one member selected from among carbon fiber, carbon bead and copper alloy powder. The bearing is excellent in wear resistance, does not damage the mating material, does not make abnormal noise, can prevent malfunctions of electronic equipment caused by electrification, and is lightweight. A resin composition comprising 35-85 wt.% of a polycyanoaryl ether mainly constituted of repeating units, represented by general formula (I) (wherein Ar represents (a), (b), (c), (d), (e), (f) or (g)) and having a reduced viscosity [$g(h)¿sp?/c] of 0.6 dl/g or above at 60 °C when dissolved in a concentration of 0.2 g/dl in p-chlorophenol, 5-60 wt.% of phosphor bronze powder and 5-30 wt.% of a fluororesin. The composition provides a molded article which is excellent in wear resistance irrespective of whether the mating material is rigid or flexible, does not damage the mating material, and does not make abnormal noise. It is also capable of mass production according to injection molding technique.
Inventors:
ISHII TATSUO (JP)
Application Number:
PCT/JP1993/000395
Publication Date:
October 14, 1993
Filing Date:
March 30, 1993
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
ISHII TATSUO (JP)
ISHII TATSUO (JP)
International Classes:
C08K3/08; C08K7/06; C08L71/00; C08L71/10; F16C33/20; (IPC1-7): C08L71/10; F16C33/12
Foreign References:
| JPH01236269A | 1989-09-21 | |||
| JPS61190553A | 1986-08-25 | |||
| JPH0415253A | 1992-01-20 | |||
| JPS59182843A | 1984-10-17 | |||
| JPS62266223A | 1987-11-19 | |||
| JPS58160352A | 1983-09-22 | |||
| JPS63286458A | 1988-11-24 | |||
| JPS58179262A | 1983-10-20 | |||
| JPS61225247A | 1986-10-07 |
Other References:
See also references of EP 0604655A4
Attorney, Agent or Firm:
Hotaka, Tetsuo (4-10 Tsukiji 2-chom, Chuo-ku Tokyo 104, JP)
Download PDF: