# US 10,478,946 B2 · Open mesh abrasive material

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- Number: US 10,478,946 B2
- Document ID: US10478946B2
- Status: Granted
- Kind: B2
- Application number: 15/036,992
- Filed: 2014-11-18
- Published: 2016-09-08
- Granted: 2019-11-19
- Earliest claimed: 2013-11-18
- Assignees: Keyon S.R.L.
- Applicants: KeyOn S.r.l.
- Inventors: Alberto Chiavenato
- Web page: https://patentgrep.com/patent/US10478946B2

## CPC

- B24D 18/0072: {using adhesives for bonding abrasive particles or grinding elements to a support, e.g. by gluing}
- B24D 11/001: {Manufacture of flexible abrasive materials}
- B24D 18/0027: {by impregnation}
- B24D: TOOLS FOR GRINDING, BUFFING OR SHARPENING (abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls B24B31/14; honing tools B24B33/08; lapping tools B24B37/11)

## Abstract

The present invention relates to an abrasive material in the form of a mesh, which is obtained by means of a method of impregnating an open mesh support with a binder, followed by the application of a suitable abrading material and subsequent drying or consolidation. The present material, due to the open mesh structure, allows the suction of the dust and residual material that is formed during the use thereof, and has optimum values of elasticity, resistance and efficacy.

## Claims

### Claim 1

A process for the preparation of an open mesh abrasive material, comprising the following steps:
a) impregnating only a second side of an open mesh support with a binder;
b) applying abrasive granules on said second side; and
c) drying the material obtained resulting in the open mesh abrasive material;
wherein a first side of the open mesh support is not-impregnated and is a teaseled side and wherein the second side of the open mesh support is the impregnated side and is a non-teaseled side.

### Claim 2 (depends on 1)

The process of claim 1, wherein the drying comprises a hardening thermal treatment.

### Claim 3 (depends on 1)

The process of claim 1, wherein the impregnating is of a selective horizontal type, parallel to the surface of the mesh to be impregnated and limited to the surface of the mesh.

### Claim 4 (depends on 1)

The process of claim 1, wherein the binder of step a) is a heat-melting compound selected from the group consisting of PUR polyurethanes, Ethyl Vinyl Acetate and Polyolefines.

### Claim 5 (depends on 1)

The process of claim 1, wherein the binder of step a) is a thermosetting compound selected from the group consisting of phenolic, furan, epoxy and acrylic resins.

### Claim 6 (depends on 1)

The process of claim 1, wherein the abrasive granules are selected from the group consisting of aluminum oxide, silicon carbide, zirconium, ceramic, synthetic diamond, and a combination thereof.

### Claim 7 (depends on 1)

The process of claim 1, wherein the applying of the abrasive granules is carried out using a technique selected from the group consisting of gravitational fall, electrostatic application, and spraying.

### Claim 8 (depends on 1)

The process of claim 1, wherein the drying is carried out using irradiation or convection.

### Claim 9 (depends on 1)

The process of claim 1, further comprising a step d) of applying a further binder and drying.

### Claim 10

An item of open mesh abrasive material prepared by a process comprising the steps of:
impregnating only a second side of an open mesh support with a binder,
applying abrasive granules on said second side, and
drying the material obtained resulting in the open mesh abrasive material,
whereby a first side of the open mesh support is not-impregnated and is a teaseled side and wherein the second side of the open mesh support is the impregnated side and is a non-teaseled side.

### Claim 11 (depends on 10)

The item of claim 10, coupled to a further support material permeable to dust.

### Claim 12 (depends on 11)

The item of claim 11, wherein said further support material is selected from the group consisting of a sponge, a paper, a cloth, a woven fabric, and a plastic film, and which are provided with holes or have an open structure.

### Claim 13

A process for the preparation of an open mesh abrasive material, comprising the following steps:
a) impregnating at least one of a first side and a second side of an open mesh support with a binder;
b) applying abrasive granules on said at least one impregnated side;
c) drying the material obtained resulting in the open mesh abrasive material; and
d) of applying a further binder and drying
wherein the first side of the open mesh support is a teaseled side and wherein the second side of the open mesh support is a non-teaseled side.