Composition for use in friction materials and articles formed therefrom
AssigneeAlliedSignal Inc.
InventorsKwok W. Lem, John W. Lokerson, Young D. Kwon
Life of this patent
Estimating the term…
Abstract
A composition containing a matrix, a fiber, a filler; and a friction modifier; wherein an effective amount of at least one of said components selected from the group consisting of fiber, filler, friction modifier and combinations thereof are cure promoting compounds having an effective aspect ratio such that the composition is rapidly cured in the presence of electromagnetic energy, and a process for curing such compositions. Articles comprised of this composition are suitable for use in the production of friction materials, such as brake pads, drum linings, and clutches.
Claims22
A composition comprised of:
- a) a cure promoting compound, and
- b) a matrix resin for binding the components of said composition, said matrix resin is composed of a thermoplastic resin, a thermoset resin, and combinations thereof,
- wherein an effective amount of said cure promoting compound has an effective aspect ratio such that said composition is rapidly cured in the presence of electromagnetic enemy.
A composition comprising:
- a) a phenolic-based matrix;
- and
- b) a cure promoting compound wherein said cure promoting compound is comprised of copper fiber, iron powder and graphite;
- wherein an effective amount of said cure promoting compound has an effective aspect ratio such that said composition is rapidly cured in the presence of electromagnetic energy.
A method of making a friction material comprising:
- a) combining a matrix and a cure promoting compound, wherein said matrix is composed of a thermoplastic resin, a thermoset resin, and combinations thereof, and an effective amount of said cure promoting compound has an effective aspect ratio such that said friction material is rapidly cured in the presence of electromagnetic energy, in a container to produce a mixture of materials;
- b) shaping said mixture into said friction material;
- and
- c) exposing said friction material to electromagnetic radiation under conditions sufficient to cure said matrix.
A friction material for use in a brake pad having a coefficient of friction which varies from a wear surface to an engagement surface with a backing plate, said friction material being manufactured by:
- a) combining a binder and cure promoting compound having an effective aspect ratio whose conductivity promotes the coupling of electromagnetic energy to form a mixture, said binder is composed of a thermoplastic resin, a thermoset resin, and combinations thereof, and;
- b) placing said mixture in a mold;
- c) subjecting said mixture while in said mold to electromagnetic radiation for a time sufficient to develop a desired thermal reaction in said cure promoting compound such that said binder is cured.
Dependencies are inferred from the claim text.