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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0627923 (2012-09-26) |
등록번호 | US-9517546 (2016-12-13) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 349 |
An abrasive particulate material which is made of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition including a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio Mg:Ca within a range b
An abrasive particulate material which is made of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition including a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio Mg:Ca within a range between about 1:1 and about 10:1, and a Ca amount is at least about 0.2 wt % Ca for the total weight of the abrasive particulate material.
1. An abrasive article comprising: an abrasive particulate material comprising alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition comprising a combination of Mg and Ca, wherein Mg and Ca are present in an additiv
1. An abrasive article comprising: an abrasive particulate material comprising alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition comprising a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg:Ca] within a range between about 1:1 and about 10:1, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 2 wt % based on the total weight of the abrasive particulate material and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material, and wherein the abrasive particulate material is free of a rare earth oxide. 2. The abrasive article of claim 1, wherein the alumina crystals comprise alpha alumina. 3. The abrasive article of claim 1, wherein the abrasive particulate material comprises Ca in an amount of at least about 0.25 wt % and not greater than about 2 wt % based on the total weight of the abrasive particulate material. 4. The abrasive article of claim 1, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 1.5 wt % based on the total weight of the abrasive particulate material. 5. The abrasive article of claim 1, wherein the abrasive particulate material comprises not greater than about 8 wt % of the primary additive composition. 6. The abrasive article of claim 1, wherein the additive ratio [Mg:Ca] is within a range between about 1:1 and about 9:1. 7. The abrasive article of claim 1, wherein the abrasive particulate material comprises a crystallinity content of at least about 90 wt %. 8. The abrasive article of claim 1, wherein the abrasive particulate material comprises a contour, and wherein the contour comprises a polyhedral shape. 9. The abrasive article of claim 1, wherein the abrasive particulate material is part of a fixed abrasive. 10. The abrasive article of claim 1, wherein the additive ratio [Mg:Ca] is within a range between about 3:1 and about 10:1. 11. The abrasive article of claim 1, wherein the abrasive particulate material comprises shaped abrasive particles selected from the group consisting of triangular, rectangular, pentagonal, hexagonal, conical, helical, elliptical, elongated shape, and any combination thereof. 12. The abrasive article of claim 11, wherein the shaped abrasive particles have a triangular shape. 13. An abrasive article comprising: an abrasive particulate material consisting essentially of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition consisting essentially of a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg:Ca] within a range between about 1:1 and about 10:1, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 2 wt % based on the total weight of the abrasive particulate material and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material. 14. The abrasive article of claim 13, wherein the alumina crystals comprise alpha alumina. 15. The abrasive article of claim 13, wherein the abrasive particulate material comprises Ca in an amount of at least about 0.25 wt % and not greater than about 2 wt % Ca based on the total weight of the particulate material. 16. The abrasive article of claim 13, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 1.5 wt % based on the total weight of the abrasive particulate material. 17. The abrasive article of claim 13, wherein the additive ratio [Mg:Ca] is within a range between about 1:1 and about 9:1. 18. The abrasive article of claim 13, wherein the additive ratio [Mg:Ca] is within a range between about 3:1 and about 10:1. 19. The abrasive article of claim 13, wherein the abrasive particulate material comprises shaped abrasive particles having a shape selected from the group consisting of triangular, rectangular, pentagonal, hexagonal, conical, helical, elliptical, elongated, and a combination thereof. 20. The abrasive article of claim 19, wherein the shaped abrasive particles have a triangular shape. 21. The abrasive article of claim 13, wherein the abrasive particulate material is part of a fixed abrasive.
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