Patent · US Expired

Brake linings

US4994506A · kind A · utility

9Cited by

3References

5Claims

0Family size

Assignee

Redco NV · US

Inventors

Octavian Anton · Hulshout, BE
Alfred Eckert · Mainz, DE
Armin Eckert · Philippsburg, DE

Key dates

Filing date	Aug 31, 1989
Grant date	Feb 19, 1991
Priority date	—
Expiry date	Aug 31, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K7/26
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Asbestos-free brake lining comprising phenolic resin and usual fillers and in addition an amount of a synthetic hydrated calcium silicate particle of xonotlite with a substantially spherical morphology and a mean diameter of 50 to 70 .mu.m with an open inner structure and an outer shell with a close limited crystal structure with pore openings of up to 10.sup.-7 m in the outer shell.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.