Mixing method for friction material with a pre-mix in a single mixer
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United States of America Patent
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Nov 13, 2007
Grant Date -
Jun 21, 2007
app pub date -
Dec 20, 2005
filing date -
Dec 20, 2005
priority date (Note) -
Expired
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Abstract
An improved method of producing a friction material for use in the production of brake pads. A first mixing step blends binder, fiber, and filler materials together in a mixer to create a pre-mix, with one of the materials doubling as a wetting agent promoting the homogeneity of the mixture. A second non-asbestos material is added to the pre-mix in the same mixer, and the two are mixed together to produce the final friction material.
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