Polishing pad and method of making same

Details Polishing pad and method of making same Polishing pad and method of making same

2006-01-17

2006-01-17

Wilson, Lee D. (Department: 3723)

Abrading

Flexible-member tool, per se

C451S041000, C451S059000, C451S528000, C451S529000, C451S534000, C451S539000

Reexamination Certificate

active

06986705

ABSTRACT:
An article or polishing pad for altering a surface of a work piece includes a polymer matrix created by reaction injection molding of size controlled gas bubbles within a polyurethane matrix. The proposed liquid urethane precursor is first injected into an actuated mold and cured. The molded product is then removed from the mold and double side faced or ground to form a single thin polishing pad comprising a single layer of homogeneous material.

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