Coating method for disc brake pads

Details Coating method for disc brake pads Coating method for disc brake pads

2006-03-07

2006-03-07

Yao, Sam Chuan (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S279000, C188S25100R

Reexamination Certificate

active

07008498

ABSTRACT:
A method of coating disc brake pads to obscure and seal minor surface imperfections, thereby reducing scrap rates. A preform of friction lining material is coated prior to molding and curing the preform and bonding the same to the backing plate to form the brake pad assembly. The preform is coated with an aqueous composition containing a solids mixture of 5–50 vol. % resin and 50–95 vol. % non-resin solids. Advantageously, the coating composition has a 5–30 vol. % solids mixture content, which solids mixture includes 15–25 vol. % resin, 0–10 vol. % powdered elastomer, 5–15 vol. % carbon black, 20–50 vol. % inorganic fillers, 5–15 vol. % organic fibers and 1–10 vol. % inorganic flake material.

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patent: 2002/0033315 (2002-03-01), Yamane

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