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US 7,252,694 B2Granted
Abrasive article and methods of making same
Assignee3M Innovative Properties Company
InventorsEdward J. Woo, Charles R. Wald, Curtis J. Schmidt
Life of this patent
Estimating the term…
Abstract
A porous abrasive article that allows air and dust particles to pass through. The abrasive article has a screen abrasive and an apertured attachment interface with hooks. The screen abrasive has an abrasive layer comprising a plurality of abrasive particles and at least one binder. The apertured attachment interface cooperates with the screen abrasive to allow the flow of particles through the abrasive article.
Claims20
An abrasive article comprising:
- a screen abrasive comprising an open mesh backing having a first major surface having a perimeter that defines a screen abrasive surface area, a second major surface, a plurality of openings extending from said first major surface to said second major surface, and an abrasive layer secured to at least a portion of said first major surface of said backing, said abrasive layer comprising a plurality of abrasive particles and at least one binder;
- and
- an apertured attachment interface adhered to said second major surface of said open mesh backing, said apertured attachment interface comprising a base sheet comprising a plurality of hooks projecting from at least a portion of said base sheet, and a plurality of apertures extending through said base sheet, said apertures forming a cumulative open area that is no greater then 40 percent of said screen abrasive surface area,
- wherein said apertures cooperate with said screen abrasive to allow the flow of particles through said abrasive article.
1 more element
An abrasive article comprising:
- a woven backing having a first major surface having a perimeter that defines a screen abrasive surface area, a second major surface, and a plurality of openings extending from said first major surface to said second major surface;
- an abrasive layer secured to at least a portion of said first major surface of said backing, said abrasive layer comprising a plurality of abrasive particles and at least one binder;
- and
- an apertured attachment interface affixed to said second major surface of said backing, said apertured attachment interface comprising a base sheet comprising a plurality of hooks projecting from at least a portion of said base sheet, and a plurality of apertures extending through said base sheet,
- wherein said abrasive article is porous.
2 more elements
A method of making an abrasive article comprising:
- providing a screen abrasive comprising an open mesh backing having a first major surface having a perimeter that defines a screen abrasive surface area, a second major surface, a plurality of openings extending from said first major surface to said second major surface, and an abrasive layer affixed to at least a portion of said first major surface of said backing, said abrasive layer comprising a plurality of abrasive particles and at least one binder;
- providing an attachment interface comprising a base sheet comprising a plurality of hooks projecting from at least a portion of said base sheet;
- perforating said attachment interface to form an apertured attachment interface comprising a plurality of apertures extending through said base sheet, said apertures forming a cumulative open area that is no greater then 40 percent of said screen abrasive surface area;
- and
- affixing said apertured attachment interface to at least a portion of said second major surface of said open mesh backing.
2 more elements
Dependencies are inferred from the claim text.