Friction materials

• US 3,896,075 A
• Filed: 11/03/1972
• Issued: 07/22/1975
• Est. Priority Date: 11/04/1971
• Status: Expired due to Term

• Current Assignee: John William Longley
• Original Assignee: John William Longley
• Inventors: Longley, John William
• Primary Examiner(s): Marquis, Melvyn I.
• Assistant Examiner(s): Person, S. M.
• Application Number:
  US05/303,364
• Time in Patent Office: 991 Days
• Field of Search: 106/36 260/38,DIG.39
• US Class Current: 523/153
• CPC Class Codes: C08K 7/10 Silicon-containing compounds
• CPC Class Codes: C08L 97/002 Peat, lignite, coal ceramic products based on carbon or carbides C04B35/00; working-up peat C10F7/00; briquettes C10L5/00
• CPC Class Codes: F16D 69/026 containing fibres

Abstract

There is described a friction material which comprises basalt fibres and a thermosetting resin binder. The basalt fibres are preferably used in complete substitution for the asbestos fibres which are conventionally included in friction materials.

Claims

1. A FRICTION MATERIAL FOR FRICTION ENGAGING MECHANISMS COMPRISING BY WEIGHT 40 TO 60% OF BASALT FIBER, 8 TO 15% OF THERMOSETTING RESIN INDER, THE BALANCE BEING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF FILLERS AND ADDITIVES.

2. The friction material of claim 1, which includes 45 to 55% by weight of basalt fiber.

3. The friction material of claim 2, wherein said thermosetting resin binder is phenol/aldehyde resin.

4. A friction material for friction engaging mechanisms which comprises by weight 45 to 55 % of basalt fiber, 8 to 15 % of thermosetting resin binder, and 0 to 45 % of at least one compound selected from the group consisting of fillers and additives.

5. A friction lining for a brake or a clutch consisting of a friction material according to claim 1.