F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
400/7032, 18/95
F16D 69/02 (2006.01)
Patent
CA 1283745
FRICTION MATERIAL COMPOSITES CONTAINING CRYSTALLINE PHOSPHATE FIBERS AND PROCESS FOR THE PREPARATION THEREOF ABSTRACT OF THE INVENTION Asbestos-free friction material composites containing asbestiform crystalline calcium M phosphate fibers wherein M is a metal cation selected from the group consisting of sodium and lithium, and mixtures thereof, are useful as brake pads, brake linings, clutch facings, and the like where friction material composites are needed. Such composites are prepared by (a) blending asbestiform crystalline calcium M phosphate fibers wherein M is a metal cation selected from the group consisting of sodium and lithium, and mixtures thereof, a thermosetting resin-based binder, a particulate friction modifier, and a particulate inorganic filler to form a uniform mixture; (b) placing the mixture within a mold cavity having a shape approximately that of the desired composite; and (c) compressing the mixture at a temperature and a pressure, and for a time, sufficient to form the asbestos-free friction material composites.
503983
Crutchfield Marvin M.
Griffith Edward J.
Hinkebein John A.
Crutchfield Marvin M.
Griffith Edward J.
Hinkebein John A.
Mcfadden Fincham
Monsanto Company
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