Discrete particles that include a polymeric material and articles formed therefrom
Assignee3M Innovative Properties Company
InventorsEric G. Larson, Don H. Kincaid, Ernest L. Thurber, Ronald D. Provow
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Abstract
The present invention provides discrete particles and methods of preparing the discrete particles. The discrete particles include a plurality of abrasive grits and a polymeric material that includes a reaction product of components including (a) an epoxy-functional material, (b) at least one of a cyclic anhydride or a diacid derived therefrom, and optionally (c) a polyfunctional (meth)acrylate. The invention also provides articles made from the discrete particles and methods of making such articles. Preferably, the articles are abrasive articles.
Claims34
A discrete particle comprising a polymeric material and a plurality of abrasive grits, wherein the polymeric material comprises a reaction product of components comprising (a) an epoxy-functional material, and (b) at least one of a non-polymeric cyclic anhydride or a diacid derived therefrom.
A discrete particle comprising a plurality of abrasive grits and a polymeric material preparable by combining components comprising at least (a) an epoxy-functional material, and (b) at least one of a non-polymeric cyclic anhydride or a diacid derived therefrom.
An abrasive article comprising a plurality of discrete particles that comprise a polymeric material comprising a reaction product of components comprising (a) an epoxy-functional material, and (b) at least one of a non-polymeric cyclic anhydride or a diacid derived therefrom.
An abrasive article comprising a plurality of particles comprising a polymeric material preparable by combining components comprising at least (a) an epoxy-functional material, and (b) at least one of a non-polymeric cyclic anhydride or a diacid derived therefrom.
A method of preparing a discrete particle comprising:
- combining components comprising at least (a) an epoxy-functional material, (b) at least one of a non-polymeric cyclic anhydride or a diacid derived therefrom, and (c) a plurality of abrasive grits to provide a composition;
- and
- at least partially curing at least a portion of the composition to provide a discrete particle.
Dependencies are inferred from the claim text.