Molded abrasive brush
Assignee3M Innovative Properties Company
InventorsDavid E. Johnson, Lawrence J. Mann, Scott M. Mevissen, Richard M. Pihl, David C. Roeker
Life of this patent
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Abstract
A molded abrasive brush having a backing with a plurality of bristles extending therefrom. The backing and bristles are preferably integrally molded. The brush is molded from a moldable polymer such a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The moldable polymer includes a plurality of organic or inorganic abrasive particles interspersed throughout at least the bristles, and can be interspersed throughout the brush. The moldable brush can include an attaching means molded integrally with the backing. Also disclosed is a method of making a molded abrasive brush and a method of refining a workpiece surface with a molded abrasive brush.
Claims31
An integrally molded abrasive brush comprising:
- a flexible base having a first side and a second side, wherein said base is generally planar;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles have an aspect ratio of at least 2, and wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a thermoplastic elastomer and wherein said bristles include abrasive particles interspersed in said thermoplastic elastomer.
An integrally molded abrasive brush comprising:
- a circular base having a first side and a second side;
- attachment means provided on said base for attaching said abrasive brush to a rotary tool, wherein said attachment means is centered relative to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a thermoplastic elastomer, and wherein said bristles include abrasive particles interspersed in said thermoplastic elastomer.
An integrally molded abrasive brush comprising:
- a circular base having a first side and a second side;
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- and
- a threaded stud integrally molded with said base and extending from said second side of said base for attaching said abrasive brush to a tool to rotate said abrasive brush, wherein said threaded stud is centered relative to said base;
- wherein said molded abrasive brush comprises a moldable polymeric material and wherein said bristles include abrasive particles interspersed in said moldable polymeric material.
An integrally molded abrasive brush comprising:
- a circular base having a first side and a second side;
- attachment means provided on said base for attaching said abrasive brush to a rotary tool, wherein said attachment means is centered relative to said base;
- and
- a plurality of bristles extending from said first side of said base, wherein said bristles are integrally molded with said base;
- wherein said molded abrasive brush comprises a moldable polymeric material and wherein said bristles include organic abrasive particles interspersed in said moldable polymeric material.
Dependencies are inferred from the claim text.