Backing and abrasive product made with the backing and method of making and using the backing and abrasive product
Assignee3M Innovative Properties Company
InventorsEhrich J. Braunschweig, Daidre L. Syverson, Edward J. Woo, Michael J. Annen
Life of this patent
Estimating the term…
Abstract
The invention provides a backing for an abrasive article comprising a sheet-like polymeric substrate having a first major surface including a pattern of non-abrasive raised areas and depressed areas and an opposite second major surface including a plurality of shaped engaging elements that are one part of a two-part mechanical engagement system. An abrasive product is provided by coating at least the raised areas of the backing with an abrasive coating.
Claims32
A backing for an abrasive article comprising a sheet-like polymeric substrate having a first major surface including a pattern of non-abrasive raised areas and depressed areas and an opposite second major surface including a plurality of shaped engaging elements that are one part of a two-part mechanical engagement system.
An abrasive article comprising:
- a. a backing comprising a sheet-like polymeric substrate having a first major surface including a pattern of non-abrasive raised areas and depressed areas and an opposite second major surface including a plurality of shaped engaging elements that are one part of a two-part mechanical engagement system;
- and
- b. an abrasive coating at least over said raised areas.
A method of making a backing for an abrasive article, said method comprising:
- a. extruding molten polymeric material to form a sheet having a first major surface and an opposite second major surface;
- b. contacting said first major surface of the molten sheet with a first tool having a contact surface including a pattern of non-abrasive raised areas and depressed areas to create in said first major surface a corresponding pattern of depressed areas and raised areas;
- c. contacting said second major surface of the molten sheet material with a second tool having a contact surface capable of creating therein a plurality of elements selected from the group consisting of shaped engaging elements and precursors to shaped engaging elements that will be one part of a two-part mechanical engagement system;
- and
- d. solidifying said molten sheet to provide said backing.
A method of making an abrasive article, said method comprising:
- a. extruding molten polymeric material to form a sheet having a first major surface and an opposite second major surface;
- b. contacting said first major surface of the molten sheet with a first tool having a contact surface including a pattern of non-abrasive raised areas and depressed areas to create in said first major surface a corresponding pattern of depressed areas and raised areas;
- c. contacting said second major surface of the molten sheet material with a second tool having a contact surface capable of creating therein a plurality of elements selected from the group consisting of shaped engaging elements and precursors to shaped engaging elements that will be one part of a two-part mechanical engagement system;
- d. solidifying said molten sheet to provide said backing;
- and
- e. providing an abrasive coating at least over said raised areas of said first major surface.
A backing for an abrasive article comprising a sheet-like substrate having a first major surface including a pattern of non-abrasive raised areas and depressed areas and an opposite second major surface unitarily including a plurality of shaped engaging elements that are one part of a two-part mechanical engagement system.
A method of making a shaped backing for a coated abrasive article, said method comprising:
- a. providing a sheet-like backing having a first major surface and an opposite second major surface which unitarily includes one part of a two-part mechanical attachment system;
- and
- b. applying a plurality of separated, shaped structures to said first major surface, each of said structures having an attachment end attached to said first major surface and a distal end spaced from said first major surface with said shaped structures comprising distal ends aligned generally in the same plane.
Dependencies are inferred from the claim text.