A macro-porous abrasive article includes a spun lace substrate having a macro-porous structure and a coating. The coating is made of a resin binder and abrasive aggregates. The abrasive aggregates are formed from a composition of abrasive grit particles and a nanoparticle binder. The coating is at l
A macro-porous abrasive article includes a spun lace substrate having a macro-porous structure and a coating. The coating is made of a resin binder and abrasive aggregates. The abrasive aggregates are formed from a composition of abrasive grit particles and a nanoparticle binder. The coating is at least partially embedded in the substrate. A method for making the macro-porous abrasive article includes combining abrasive aggregates of abrasive grit particles and a nanoparticle binder with a resin binder to form a slurry. The slurry is applied to a macro-porous support structure so that the slurry at least partially penetrates the substrate. The resin is then cured to bond the aggregate grains to the substrate.
대표청구항▼
1. A macro-porous abrasive article, comprising: a) a non-woven substrate comprising hydro-entangled fibers having a macro-porous structure including macropores having a pore size between about 15 microns to about 3 mm; andb) a coating on the macroporous substrate, the coating including a binder and
1. A macro-porous abrasive article, comprising: a) a non-woven substrate comprising hydro-entangled fibers having a macro-porous structure including macropores having a pore size between about 15 microns to about 3 mm; andb) a coating on the macroporous substrate, the coating including a binder and green, unfired abrasive aggregates having a generally spheroidal or toroidal shape that are formed from a composition of abrasive grit particles and a nanoparticle binder, wherein the coating is at least partially embedded in the macroporous substrate. 2. The abrasive article of claim 1, wherein the article is flexible. 3. The abrasive article of claim 1, wherein the article is rigid or semi-rigid. 4. The abrasive article of claim 1, wherein the coating is fully embedded in the substrate. 5. The abrasive article of claim 1, further comprising additional abrasive particles over the coating. 6. The abrasive article of claim 1, further comprising an anti-loading/dispersing agent. 7. The abrasive article of claim 1, wherein the binder is an ultra violet light curable acrylate. 8. The abrasive article of claim 1, wherein the green, unfired aggregates are essentially filled. 9. The abrasive article of claim 8, wherein the green, unfired aggregates comprise about 21% by weight bond. 10. The abrasive article of claim 1, wherein the macro-porous substrate is patterned. 11. A method of forming a macro-porous abrasive article, comprising the steps of: a) combining abrasive aggregates with a resin binder to form a slurry, wherein the abrasive aggregates are green, unfired abrasive aggregates having a generally spheroidal or toroidal shape that are formed from a composition of abrasive grit particles and a nanoparticle binder;b) applying the slurry to a non-woven substrate comprising hydro-entangled fibers having a macro-porous structure to at least partially penetrate the substrate, wherein the macro-porous structure includes macropores having a pore size between about 15 microns to about 3 mm; andc) curing the resin to bond the aggregate grains to the substrate. 12. The method of claim 11, wherein the slurry fully penetrates the substrate. 13. The method of claim 11, wherein the slurry is applied to the substrate by gravure coating, roll coating, or transfer coating. 14. The method of claim 11, further comprising the step of applying a grain coating after applying the slurry to the substrate. 15. The method of claim 14, wherein the grain coating is applied by gravity, slurry, electrostatic coating or electrostatic spray. 16. The method of claim 11, wherein the resin binder is an acrylate. 17. The method of claim 16, wherein the acrylate resin binder is cured by ultra violet light. 18. The abrasive article of claim 11, wherein the macro-porous substrate is patterned. 19. The abrasive article of claim 11, wherein the macro-porous substrate is non-woven. 20. A method for abrading a work surface, comprising applying an abrasive product in an abrading motion to remove a portion of the work surface, the abrasive product including: a) a nonwoven substrate comprising hydro-entangled fibers having a macro-porous structure including macropores having a pore size between about 15 microns to about 3 mm; and a coating on the macroporous substrate, the coating including a binder and green, unfired abrasive aggregates having a generally spheroidal or toroidal shape that are formed from a composition of abrasive grit particles and a nanoparticle binder, wherein the coating is at least partially embedded in the macroporous substrate.
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이 특허에 인용된 특허 (11)
Calhoun Clyde D. (Stilwater MN), Abrasive article having precise lateral spacing between abrasive composite members.
Klun Thomas P. (Lakeland Township ; Washington County MN) Hibbard Louis D. (Eagan MN) Spurgeon Kathryn M. (River Falls MN) Culler Scott R. (Burnsville MN), Coatable compositions abrasive articles made therefrom, and methods of making and using same.
Lerner Peter (North Attleboro MA) Metrick Dennis (Cumberland RI), Tack cloth for removing solid particles from solid surfaces and method for its manufacture.
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