Endless abrasive belt, and laminated patch splice therefor

Details Endless abrasive belt, and laminated patch splice therefor Endless abrasive belt, and laminated patch splice therefor

1976-08-13

1978-04-04

Bell, James J.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51297, 428 36, 428 57, 428 61, 428246, 428252, 428257, B24B 100

Patent

active

040825213

ABSTRACT:
Endless coated abrasive belts require a splice between two ends of coated abrasive sheet material. According to this invention, this splice comprises (1) a straight slit woven fabric layer, preferably a wholly aromatic polyamide, (2) a plastic film layer, preferably polyimide film, (3) first means joining the fabric layer and plastic film layer into an integral laminated patch, preferably by polyurethane adhesive, and (4) second means joining the integral laminated patch to the backing sheet of the coated abrasive sheet material, which is also preferably polyurethane adhesive.

REFERENCES:
patent: 2391731 (1945-12-01), Miller et al.
patent: 3665660 (1972-05-01), Malloy et al.
patent: 3763604 (1973-10-01), Malloy

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