Abrasive article having precise lateral spacing between abrasive composite members
AssigneeMinnesota Mining and Manufacturing Company
InventorClyde D. Calhoun
Life of this patent
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Abstract
The present invention provides a method of forming an abrasive article comprising the steps of providing an embossed carrier web having a plurality of recesses formed in the front surface thereof; filling the recesses with an abrasive composite slurry that includes a plurality of abrasive grains dispersed in a hardenable binder precursor, hardening the binder precursor to form individual abrasive composite members, laminating a backing sheet to the front surface of the embossed carrier web. The resulting article includes a plurality of precisely spaced abrasive composite members, positioned in a predetermined pattern and orientation on a backing sheet.
Claims25
A method of forming an abrasive article comprising the steps of:
- A. providing an embossed carrier web having a front surface and a back surface, said front surface having a plurality of recesses formed therein, each of said recesses having a recessed bottom surface portion and sidewall portions;
- B. filling said recesses with an abrasive slurry comprising a plurality of abrasive grains dispersed in a binder precursor;
- C. providing a backing sheet having a front surface and a back surface;
- D. laminating the front surface of said backing sheet to the front surface of said embossed carrier web so that at least a portion of the front surface of said backing sheet is in direct contact with the front surface of said embossed carrier web;
- and
- E. hardening said binder precursor to form a plurality of abrasive composite members disposed on said front surface of said backing sheet.
Dependencies are inferred from the claim text.