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US 6,672,952 B1Granted
Tearable abrasive article
Assignee3M Innovative Properties Company
InventorsCraig A. Masmar, Jeffrey S. Peterson, Michael L. Teetzel
Life of this patent
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Abstract
A tearable abrasive article is provided which includes a backing comprising a polymer film having a scrim partially embedded therein and an abrasive coating comprising a plurality of abrasive articles and a binder bonded to at least one side of the backing.
Claims26
An abrasive article comprising:
- a backing having a first side and a second side, the backing comprising:
- a polymer film having a first side and a second side;
- and
- a scrim partially embedded into the first side of the polymer film thereby defining the first side of the backing, the scrim comprising a plurality of generally parallel warp elements extending in a first direction and a plurality of generally parallel weft elements extending in a second direction wherein the first direction and the second direction are perpendicular to one another;
- an abrasive coating comprising a plurality of abrasive particles and a binder bonded to at least one side of the backing;
- wherein the abrasive article is tearable along a substantially straight line in the first direction and in the second direction.
3 more elements
An abrasive article comprising:
- a backing.having a first side and a second side, the backing comprising:
- a polyethylene film having a first side and a second side;
- and
- a woven raypn scrim partially embedded into the first side of the polymer film thereby defining the first side of the backing, the scrim comprising a plurality of generally parallel warp yarns extending in a first direction and a plurality of generally parallel weft yarns extending in a second direction wherein the first direction and the second direction are perpendicular to one another;
- an abrasive coating bonded to the first side of the backing, the abrasive coating comprising a make coat, a plurality of abrasive particles and a size coat wherein the make coat comprises a comprises an epoxy resin;
- a polyester component;
- a polyfunctional acrylate;
- and a curing agent for crosslinking the epoxy resin;
- wherein the abrasive article is tearable along a substantially straight line in the first direction and in the second direction.
6 more elements
Dependencies are inferred from the claim text.