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US 10,245,708 B2Granted
Method of making an abrasive article and abrasive article
Assignee3M Innovative Properties Company
InventorsJacob S. Beveridge, Steven J. Keipert
Life of this patent
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Abstract
A method of making an abrasive article comprises urging a malleable thermosetting melt-flowable composition through openings extending through a porous abrasive member to form an abrasive article precursor; which is heated to form the abrasive article. Multiple abrasive articles may be stacked prior to heating. Methods can be used to fabricate abrasive articles such as grinding wheels and cut-off wheels.
Claims11
A method of making an abrasive article, the method comprising steps:
- a) providing a porous abrasive member having first and second opposed major surfaces, wherein openings extending through the porous abrasive member from the first major surface to the second major surface, wherein the porous abrasive member comprises abrasive particles secured to a porous substrate by at least one binder material;
- b) urging a malleable thermosetting melt-flowable composition through the openings in the porous abrasive member to form an abrasive article precursor, wherein the malleable melt-flowable composition comprises novolac phenolic resin and furfuryl alcohol;
- and
- c) heating the abrasive article precursor to form the abrasive article, wherein the abrasive article comprises first and second opposed major surfaces, and wherein both of the first and second major surfaces comprise a cross-linked reaction product of the malleable thermosetting melt-flowable composition.
1 more element
A method of making an abrasive article, the method comprising steps:
- i) providing a plurality of abrasive article precursors, wherein each abrasive article precursor is respectively prepared by a method comprising steps:
- a) providing a porous abrasive member having first and second opposed major surfaces, wherein openings extending through the porous abrasive member from the first major surface to the second major surface, wherein the porous abrasive member comprises abrasive particles secured to a porous substrate by at least one binder material;
- and
- b) urging a malleable thermosetting melt-flowable composition through the openings in the porous abrasive member to form an abrasive article precursor, wherein the malleable melt-flowable composition comprises novolac phenolic resin and furfuryl alcohol;
- and
- ii) stacking the plurality of abrasive article precursors optionally with one or more reinforcing scrims disposed adjacent to each one of the abrasive article precursors to provide a abrasive article precursor stack;
- and
- iii)) heating the abrasive article precursor stack to form the abrasive article, wherein the abrasive article comprises first and second opposed major surfaces, and wherein both of the first and second major surfaces comprise a cross-linked reaction product of the malleable thermosetting melt-flowable composition.
5 more elements
Dependencies are inferred from the claim text.