Coated abrasive product containing hollow microspheres beneath t

Details Coated abrasive product containing hollow microspheres beneath t Coated abrasive product containing hollow microspheres beneath t

1984-06-25

1985-09-24

Cannon, James C.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51296, 51298, 428143, 428240, 428241, 428248, 428252, 428283, 4283135, 4283139, 428332, 428339, B24D 332, B24D 334, B24D 1102

Patent

active

045431060

ABSTRACT:
A coated abrasive product which comprises a fabric backing, a layer of abrasive grain and at least one layer of resin between the backing and abrasive grain. Hollow microspheres are present and at least partly and usually entirely embedded in the resin layer. In general, such hollow microspheres comprise hollow spherical bodies which may be of glass or plastic materials such as a phenolic resin, which have a diameter of from about 5 to about 500 microns and an average diameter of from about 25 to about 150 microns. Such hollow microspheres generally have a shell thickness which averages from about 5 to about 20 percent of the diameter of the microsphere. Such microspheres are usually incorporated into the resin layer in an amount of from about 5 to about 20 percent by weight of the resin layer.
The invention further includes a process for manufacturing a coated abrasive product which comprises coating a fabric backing with a resin followed by application of abrasive grain to the resin wherein hollow microspheres are incorporated into the resin coating.

REFERENCES:
patent: 2986455 (1961-05-01), Sandmeyer
patent: 3502453 (1970-03-01), Baratto
patent: 3661544 (1972-05-01), Whitaker
patent: 3778241 (1973-12-01), Winter et al.
patent: 3787273 (1974-01-01), Okrepkie et al.
patent: 3925034 (1975-12-01), Anna et al.
patent: 3928949 (1975-12-01), Wagner
patent: 4035961 (1977-07-01), Pemrick et al.
patent: 4111667 (1978-09-01), Adams
patent: 4132533 (1979-01-01), Lohmer et al.

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