Method for manufacturing polishing cloths

Details Method for manufacturing polishing cloths Method for manufacturing polishing cloths

1986-02-24

1987-11-24

Lawrence, Evan K.

Coating processes

Foraminous product produced

Microporous coating

427246, 427289, 427342, B05D 300, B05D 302, B05D 312, B05D 500

Patent

active

047088915

ABSTRACT:
A method for manufacturing polishing cloths of the class to be used with abrasive powders on a lapping machine is disclosed. The method comprises the steps of impregnating a nonwoven fabric sheet with a solution of polyurethane elastomer, wet-coagulating the impregnated sheet, and heating the resulting microporous composite sheet at a temperature higher than the softening point of the polyurethane elastomer under an essentially uncompressed condition.

REFERENCES:
patent: 4511605 (1985-04-01), McCartney
patent: 4535008 (1985-08-01), Naka et al.
patent: 4554198 (1985-11-01), Blucher et al.

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