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US 11,446,787 B2Granted
Open coat abrasive article and method of abrading
Assignee3M Innovative Properties Company
InventorsJing Zhang, Michael D. Kariniemi, Gregory S. Mueller
Life of this patent
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Abstract
An open coat abrasive article includes a backing having first and second opposed major surfaces, a make coat resin on at least one major surface of the backing, abrasive particles arranged on the backing at least partially embedded in the make coat resin, and a size coat resin on the first resin and the abrasive particles, wherein the shaped abrasive particles have an average peak count of no greater than about 40,000 per 24 in2. A method of abrading in a body-in-white application is also disclosed.
Claims18
A coated abrasive article comprising:
- a backing having first and second opposed major surfaces;
- a first resin on at least one major surface of the backing;
- abrasive particles at least partially embedded in the first resin;
- and
- a second resin on the first resin and the abrasive particles;
- wherein at least a portion of the abrasive particles are configured to stand upright on an edge on the backing, and wherein no greater than 15% of the surface area of the backing is covered with abrasive particles;
- wherein the ratio of the abrasive particles weight to the first resin coat weight ranges from about 2:1 to about 1:4.
4 more elements
A coated abrasive disc comprising:
- a backing having a smooth continuous first major surface;
- a make coat resin on the first major surface;
- a plurality of shaped abrasive particles having a uniform size and shape arranged on the backing at least partially embedded in the make coat resin;
- a size coat resin on the make coat resin and the abrasive particles;
- wherein at least 80% of the abrasive particles stand upright on the backing and the average height of the abrasive particles standing upright on the backing is at least 3 times the thickness of the make coat resin,
- wherein the coating weight of the size coat resin is greater than the coating weight of the make coat resin,
- wherein the shaped abrasive particles have an average peak count of no greater than about 40,000 per 24 in2, and
- wherein the abrasive particles have an average grit size of at least about 24 and no greater than about 800;
- wherein the ratio of the abrasive particles weight to the first resin coat weight ranges from about 2:1 to about 1:4.
6 more elements
Dependencies are inferred from the claim text.