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1. WO2010002493 - COATED ABRASIVE ARTICLES AND METHODS OF MAKING AND USING THE SAME

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

What is claimed is:

1. A coated abrasive article comprising: a fabric backing, optionally having a presize layer thereon; and an abrasive layer adjacent and secured to the fabric backing, the abrasive layer comprising a make layer, a size layer, and abrasive particles; wherein at least one of the make layer or the presize layer comprises a reaction product of a binder precursor comprising: a) from 45 to 75 percent by weight of resole phenolic resin; b) from 5 to 40 percent by weight of poly epoxide; c) from 1 to 15 percent by weight of polyfunctional (meth)acrylate; and d) an effective amount of photoinitiator to free-radically B-stage the binder precursor; wherein the percent by weight of components a) through c) is based on a total weight of components a) through c).

2. The coated abrasive article of claim 1, further comprising a supersize layer.

3. The coated abrasive article of claim 1, wherein the make layer comprises the binder precursor.

4. The coated abrasive article of claim 1, wherein the presize layer comprises the binder precursor.

5. A method of abrading a workpiece comprising: providing a coated abrasive article according to claim 1 ; frictionally contacting the abrasive layer with surface of the workpiece; and moving at least one of the coated abrasive article and the workpiece relative to the other to abrade at least a portion of the surface.

6. A method of making an abrasive article, the method comprising: providing a fabric backing; applying a make layer precursor to the fabric backing; embedding abrasive particles in the make layer precursor; at least partially curing the make layer precursor to provide an at least partially cured make layer precursor; applying a size layer precursor to at least a portion of the at least partially cured make layer precursor and abrasive particles; and at least partially curing the size layer precursor and optionally the at least partially cured make layer precursor; wherein the make layer precursor comprises: a) from 45 to 75 percent by weight of resole phenolic resin; b) from 5 to 40 percent by weight of poly epoxide; c) from 1 to 20 percent by weight of polyfunctional (meth)acrylate; d) from 10 to 20 percent of water; and e) an effective amount of photoinitiator to free-radically B-stage the make layer precursor; wherein the percent by weight of components a) through c) is based on a total weight of components a) through c).

7. The method of claim 6, wherein the make layer precursor is water-reducible.

8. A method of making an abrasive article comprising: providing a fabric backing; applying a presize layer precursor to the fabric backing, wherein the presize layer precursor comprises: a) from 45 to 75 percent by weight of resole phenolic resin; b) from 5 to 40 percent by weight of poly epoxide; c) from 1 to 20 percent by weight of polyfunctional (meth)acrylate; d) from 10 to 20 percent of water; and e) an effective amount of photoinitiator to free-radically B-stage the presize layer precursor;

wherein the percent by weight of components a) through c) is based on a total weight of components a) through c); at least partially curing the presize layer precursor to provide a presize layer secured to the fabric backing, wherein the presize layer substantially seals the fabric backing; and disposing an abrasive layer on the presize layer.

9. The method of claim 8, wherein the presize layer precursor is water-reducible.

10. The method of claim 8, wherein the abrasive layer comprises a make layer, a size layer, and abrasive particles.

11. The method of claim 8, wherein the abrasive layer comprises abrasive particles dispersed in a binder.