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US 10,556,322 B2Granted
Abrasive flap disc including wearable backing plate
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorsAmol Nalraj Chandekar, Udayan Paramban, Surendra Kumar
Life of this patent
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Abstract
This invention relates to abrasive flap discs that include wearable backing plates and methods of making and using such abrasive flap discs and wearable backing plates. The claimed articles, processes, and systems related to the use and manufacturing of such abrasive articles are improved in performance and cost effectiveness.
Claims19
An abrasive flap disc comprising:
- a wearable backing plate;
- and
- a plurality of abrasive flaps concentrically disposed about a periphery of the wearable backing plate, wherein the wearable backing plate comprises:
- a first wearable polymeric layer;
- a first reinforcing layer;
- and
- a second reinforcing layer, wherein the first wearable polymeric layer is disposed between the first reinforcing layer and the second reinforcing layer;
- wherein the abrasive flap disc comprises a minimum burst speed of at least 15,000 rpm to not greater than 30,000 rpm, a flexural stiffness of at least 760 MPa, and a flexural strength of at least 200 N.
5 more elements
An abrasive flap disc comprising:
- a wearable backing plate;
- and
- a plurality of abrasive flaps concentrically disposed about a periphery of the wearable backing plate, wherein the wearable backing plate comprises:
- a first wearable polymeric layer;
- a first reinforcing layer;
- a second reinforcing layer, wherein the first wearable polymeric layer is disposed between the first reinforcing layer and the second reinforcing layer;
- a second wearable polymeric layer disposed on the second reinforcing layer;
- and
- a third reinforcing layer disposed on the second wearable polymeric layer;
- wherein the first wearable polymeric layer comprises:
- 1 to 30 wt % polymeric resin;
- 50 to 95 wt % abrasive particles;
- 45 to 95 wt % nonabrasive particles;
- and
- 0 to 70 wt % filler particles.
12 more elements
An abrasive flap disc comprising:
- a wearable backing plate;
- and
- a plurality of abrasive flaps concentrically disposed about a periphery of the wearable backing plate, wherein the wearable backing plate comprises:
- a first wearable polymeric layer, wherein the first wearable polymeric layer comprises a polymeric resin, wherein the polymeric resin comprises a phenolic polymeric composition comprising a blend of a novolac resin and a resole resin, and abrasive particles, nonabrasive particles, filler particles, or a combination thereof dispersed in the polymeric resin;
- a first reinforcing layer;
- and
- a second reinforcing layer, wherein the first wearable polymeric layer is disposed between the first reinforcing layer and the second reinforcing layer.
4 more elements
Dependencies are inferred from the claim text.