Method of producing polishing sheet material

Details Method of producing polishing sheet material Method of producing polishing sheet material

1991-02-26

1992-03-10

Bell, Mark L.

Abrasive tool making process, material, or composition

Miscellaneous

51294, 51295, 51298, B24D 334

Patent

active

050946706

ABSTRACT:
A method of producing an abrasive backing or a polishing sheet material which has a nonwoven fabric of a synthetic fiber having a network structure and impregnated with a polyurethane solution. The method has the steps of completely coagulating and drying the polyurethane solution to prepare a base material, removing a skin layer from each surface thereof, dipping the resultant base material in an aqueous solution of a solvent for a short period of time, and treating it in a high-temperature atmosphere for a short period of time.

REFERENCES:
patent: 4282011 (1981-09-01), Terpty
patent: 4543106 (1985-09-01), Parekh
patent: 4751797 (1988-06-01), Fujimori
patent: 4842619 (1989-06-01), Fritz et al.
patent: 4929432 (1990-04-01), Budinger et al.
patent: 5015266 (1991-05-01), Yamamoto

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