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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0318298 (2014-06-27) |
등록번호 | US-9604346 (2017-03-28) |
발명자 / 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 328 |
A coated abrasive article including a plurality of shaped abrasive particles overlying a backing, the coated abrasive article having a plain-carbon steel grinding lifespan of at least about 5500 g/in.
1. A coated abrasive article comprising a plurality of shaped abrasive particles overlying a backing, wherein each of the shaped abrasive particles of the plurality of shaped abrasive particles includes a body comprising alumina having an average crystallite size within a range including at least 0.
1. A coated abrasive article comprising a plurality of shaped abrasive particles overlying a backing, wherein each of the shaped abrasive particles of the plurality of shaped abrasive particles includes a body comprising alumina having an average crystallite size within a range including at least 0.01 microns and not greater than 1 micron, the coated abrasive article having a plain-carbon steel lifespan grinding efficiency of not greater than about 3.0 hp min/in3 per 6000 g/in of initial material removed. 2. The coated abrasive article of claim 1, wherein the coated abrasive article further comprises a plain-carbon steel grinding lifespan of at least about 5500 g/in. 3. The coated abrasive article of claim 1, wherein the coated abrasive article comprises a plain-carbon steel G-ratio (MR/MW) of at least about 90 for a plain-carbon steel grinding lifespan of at least about 6000 g/in. 4. The coated abrasive article of claim 1, wherein the coated abrasive article comprises a plain-carbon steel half-life of at least about 3000 g/in. 5. The coated abrasive article of claim 1, wherein the coated abrasive article comprises a plain-carbon steel half-life grinding efficiency of not greater than about 3.0 hp min/in3 per 3000 g/in of initial material removed. 6. The coated abrasive article of claim 1, wherein each shaped abrasive particle of the plurality of shaped abrasive particles comprises a body having a length (l), a width (w), and a height (h), wherein the width>length, the length>height, and the width>height. 7. The coated abrasive article of claim 6, wherein the body comprises a percent flashing of between about 1% and about 40%. 8. The coated abrasive article of claim 6, wherein the body comprises a two-dimensional polygonal shape as viewed in a plane defined by a length and a width of the body, wherein the body comprises a shape selected from the group consisting of triangular, quadrilateral, rectangular, trapezoidal, pentagonal, hexagonal, heptagonal, octagonal, and a combination thereof. 9. The coated abrasive article of claim 6, wherein at least 70% of the plurality of shaped abrasive particles are oriented in a predetermined side orientation. 10. The coated abrasive article of claim 9, wherein the coated abrasive article includes a normalized weight of shaped abrasive particles of at least 20 lbs/ream and not greater than 60 lbs/ream. 11. The coated abrasive article of claim 6, wherein the body comprises an additive comprising a rare-earth element. 12. The coated abrasive article of claim 1, wherein each shaped abrasive particle of the plurality of shaped abrasive particles is arranged in a controlled orientation relative to the backing, the controlled orientation including at least one of a predetermined rotational orientation, a predetermined lateral orientation, and a predetermined longitudinal orientation. 13. The coated abrasive article of claim 1, wherein a portion of the shaped abrasive particles of the plurality of shaped abrasive particles comprises a trench region in an upper surface of the body. 14. The coated abrasive article of claim 1, wherein at least 70% of the plurality of shaped abrasive particles are oriented in a predetermined side orientation. 15. The coated abrasive article of claim 14, wherein the coated abrasive article includes a normalized weight of shaped abrasive particles of at least 20 lbs/ream and not greater than 60 lbs/ream.
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