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US 12,038,057 B2Granted
Wet friction material with coated filler particles
AssigneeSchaeffler Technologies AG & Co. KG
InventorsRashid Farahati, Zhiru Shi, Murat Bakan
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Abstract
A method of making a wet friction material layer includes adding a media in liquid form to a material base including filler particles embedded in a matrix of fibers; drying the media to solidify the media on the filler particles such that the media plugs holes in the filler particles; adding a binder to the material base; and unplugging at least some of the holes in the filler particles by removing at least some of the media from the material base.
Claims17
A method of making a wet friction material layer comprising:
- adding a media in liquid form to a material base including filler particles embedded in a matrix of fibers;
- drying the media to solidify the media on the filler particles such that the media plugs holes in the filler particles;
- adding a binder to the material base after the dried media plugs holes in the filler particles;
- and
- unplugging at least some of the holes in the filler particles by removing at least some of the media from the material base after the binder is added to the material base.
2 more elements
Dependencies are inferred from the claim text.