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US 11,529,764 B2Granted
Coated abrasive film belt
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorPaul S. Goldsmith
Life of this patent
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Abstract
The present invention relates generally to coated abrasive articles, such as coated abrasive film belts having improved strength and durability, as well as methods of making and using said coated abrasive articles.
Claims20
An abrasive belt comprising:
- an abrasive film having a joint;
- wherein the abrasive film comprises an abrasive layer disposed on a backing material;
- wherein the backing material comprises:
- a backing substrate having a first side and a second side;
- and
- a back coat disposed on the second side of the backing substrate;
- wherein the back coat comprises a layer of a polymeric acrylate composition with a thickness of at least 0.1 mil to not greater than 3 mil, wherein the polymeric acrylate composition comprises an ethyl acrylate, an ethylene acrylate, an ethylene-methyl acrylate, an ethylene-ethyl acrylate, or a combination thereof;
- and
- wherein the joint comprises:
- a first end of the abrasive film abutting a second end of the abrasive film;
- a polymeric joint adhesive disposed on the back coat of the first end and the back coat of the second end;
- and
- a joint tape disposed over the polymeric joint adhesive.
10 more elements
Dependencies are inferred from the claim text.