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US 5,061,294 AGranted
Abrasive article with conductive, doped, conjugated, polymer coat and method of making same
AssigneeMinnesota Mining and Manufacturing Company
InventorsWalter L. Harmer, Leif Christensen, Gary J. Drtina, Harvey J. Helmin
Life of this patent
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Abstract
Coated abrasive product contains a conductive, doped, conjugated polymer to reduce the static charge generated during abrading operations.
Claims13
An improved abrasive article comprising:
- (a) a support member having a front surface and a back surface;
- (b) abrasive granules;
- (c) a bond system which serves to secure the abrasive granules to the front surface of the support member in an abrasive coating having an abrasive surface;
- the improvement comprising a conductive, doped, conjugated polymer layer over at least one of said abrasive surface, said front surface or said back surface, said polymer being contained in said layer in an amount sufficient to reduce static electrical charge resulting abrading operations, provided if the polymer of said conductive, doped, conjugated, polymer layer is acidic the support member surface upon which it may be applied is selected so that it will not be degraded by the presence of acid.
1 more element
A method of improving an abrasive article which comprises a support member having a front surface and a back surface, abrasive granules, and a bond system which serves to secure the abrasive granules to the front surface of the support member in an abrasive coating;
- the method comprising applying a conductive, doped, conjugated, polymer layer over at least one of said abrasive surface, said front surface or said back surface in an amount sufficient to reduce static electrical charge resulting from abrading operations, provided if the polymer of said conductive, doped, conjugated polymer layer is acidic, the support member surface upon which it may be applied is selected so that it will not be degraded in the presence of acid.
Dependencies are inferred from the claim text.