Title: Flexible coated abrasive with graphite outer layer

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Claims: We claim:

1. In a flexible abrasive article, comprising a flexible backing, an adhesive layer on said backing, and abrasive grits embedded in said adhesive layer, the improvement comprising an outer layer coated over said adhesive layer and said grits, said outer layer comprising an adhesive containing graphite particles having a size from 0.1 to 100 microns, the amount of graphite being from 1 to 100 grams per square meter of said abrasive article and sufficient to provide said outer layer with an electrical resistance of less than 5 megohm as measured between points 1 cm. apart.

2. The article according to claim 1, wherein said graphite is of a particle size of 1 to 10 microns.

3. The article according to claim 1, wherein said graphite is of 5 to 7 micron particle size.

4. The article according to claim 1, wherein said graphite is of 90% less than 1 micron particle size.

Other info:

Inventors: Markoo, Erik L. (Markaryd, SW)
Ekblom, Hans S. (Markaryd, SW)
Sandell, Torsten Wilhelm (Markaryd, SW)

Application Number: 459410
Filing Date: 1974-04-09
Publication_date: 1976-11-16
Assignee: Fabrika AB EKA (SW)
Primary Class(es): 51/295 51/298, 51/301
Other Classes:
US Patent Ref:

2050992	Aug, 1936	Aust	51/295.
2233175	Feb, 1941	Melton	51/298.
3163968	Jan, 1965	Nafus	51/295.
3168387	Feb, 1965	Adams	51/295.
3282665	Nov, 1966	Myers	51/295.
3377264	Apr, 1968	Duke et al.	51/295.

Other Refs: 1,256,520

Dec, 1971	UK

Primary Examiner: Arnold, Donald J.
Assistant Examiner:
Attorney: