[특허]Abrasive particles, method of making abrasive particles, and abrasive articles

Abrasive particles, method of making abrasive particles, and abrasive articles 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B24D-003/00 B24D-003/02 B24D-011/00 B24D-018/00 C09K-003/14 B24D-003/14 C04B-035/111 C04B-035/628
출원번호	US-0389976 (2013-03-15)
등록번호	US-9771504 (2017-09-26)
국제출원번호	PCT/US2013/031972 (2013-03-15)
국제공개번호	WO2013/151745 (2013-10-10)
발명자 / 주소	Adefris, Negus B.
출원인 / 주소	3M Innovative Properties Company
대리인 / 주소	Wright, Bradford B.
인용정보	피인용 횟수 : 0 인용 특허 : 103

초록 ▼

Shaped ceramic abrasive particles include a first surface having a perimeter having a perimeter comprising at least first and second edges. A first region of the perimeter includes the second edge and extends inwardly and terminates at two corners defining first and second acute interior angles. The perimeter has at most four corners that define acute interior angles. A second surface is disposed opposite, and not contacting, the first surface. A peripheral surface is disposed between and connects the first and second surfaces. The peripheral surface has a first predetermined shape. Methods of making the shaped ceramic abrasive particles, and abrasive articles including them are also disclosed.

대표청구항 ▼

1. A shaped ceramic abrasive particle comprising: a first surface having a perimeter comprising at least first and second edges, wherein a first region of the perimeter comprises the second edge and extends inwardly as a concave monotonic curve and terminates at two sharp corners defining first and second acute interior angles, wherein the first acute interior angle is in the range of from 35 to 55 degrees, wherein the second acute interior angle is in the range of from 35 to 55 degrees, wherein the first region of the perimeter has a maximum depth that is at least 5 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth, and wherein the perimeter has at most four corners that define acute interior angles;a second surface opposite, and not contacting, the first surface; anda peripheral surface disposed between and connecting the first and second surfaces, wherein the peripheral surface comprises a first wall that contacts the perimeter at the first edge, wherein the peripheral surface comprises a second wall that contacts the perimeter at the second edge, and wherein the peripheral surface has a first predetermined shape. 2. The shaped ceramic abrasive particle of claim 1, wherein the shaped ceramic abrasive particle has a thickness that is less than or equal to one-third of its width. 3. The shaped ceramic abrasive particle of claim 1, wherein the shaped ceramic abrasive particle consist essentially of ceramic material. 4. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 10 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 5. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 15 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 6. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 20 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 7. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 25 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 8. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 30 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 9. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 35 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 10. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 40 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 11. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 45 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 12. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 50 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 13. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 55 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth. 14. The shaped ceramic abrasive particle of claim 1, wherein the first region of the perimeter has a maximum depth that is at least 60 percent of the maximum dimension of the shaped ceramic abrasive particle parallel to the maximum depth.

이 특허에 인용된 특허 (103)

Narayanan, Kesh S.; Ramakrishnan, Muni S., Abrasive article.
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Stubbs Roy,GBX ; Culler Scott R. ; Liepa Mara E. ; Bange Donna W. ; Haas John D., Abrasive article and method of making such article.
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Gagliardi John J. ; Houck Charles H., Abrasive article containing an inorganic metal orthophosphate.
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Rowenhorst Donley D. (Maplewood MN) Berg Todd A. (Lino Lakes MN) Broberg David E. (Woodbury MN) Berg James G. (Lino Lakes MN), Abrasive article containing shaped abrasive particles.
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Herron Ralph, Abrasive filaments in coated abrasives.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Abrasive particles, method of making abrasive particles, and abrasive articles 원문보기

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Abrasive particles, method of making abrasive particles, and abrasive articles 원문보기

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