公开(公告)号：EP1149937B1

公开(公告)日：2009-04-01

申请号：EP01303624.9

申请日：2001-04-20

申请人： Diamond Innovations, Inc.

发明人： Meng, Yue ,  Anthony, Thomas Richard

IPC分类号： C30B33/00 ,  C30B29/04 ,  B01J3/06

CPC分类号： C09K3/1445 ,  C01B32/28 ,  C30B29/04 ,  C30B33/00 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2993

摘要： A method for treating diamond for improving the oxidation resistance and the mechanical strength of said diamond crystals includes forming a mixture of diamond crystals, a source of boron, and inert particles. This mixture is heated at a temperature of between about 800 DEG and 1200 DEG C for a time adequate to diffuse boron into the surface of the diamond crystals for improving the oxidation resistance and the mechanical strength of the boron-diffused diamond crystals. The resulting diamond crystals have improved oxidation resistance and improved mechanical strength by virtue of having had boron thermally diffused into the surface of thereof.

公开(公告)号：EP1378591B1

公开(公告)日：2009-03-25

申请号：EP03254007.2

申请日：2003-06-25

申请人： Diamond Innovations, Inc.

发明人： D'Evelyn, Mark Philip ,  Rowland, Larry Burton ,  Lucek, John William ,  Vagaralli, Suresh Shankarappa ,  Anthony, Thomas Richard ,  Levinson, Lionel Monty ,  Arthur, Stephen Daley

IPC分类号： C30B33/02 ,  C30B29/36 ,  C30B29/40 ,  C30B29/42 ,  C30B33/00

CPC分类号： B01J3/065 ,  B01J3/062 ,  B01J2203/0635 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/0665 ,  B01J2203/067 ,  B01J2203/0675 ,  B01J2203/069 ,  C30B33/00 ,  Y10T117/1004 ,  Y10T117/1008

公开(公告)号：EP1645328A1

公开(公告)日：2006-04-12

申请号：EP05024773.3

申请日：2000-08-25

申请人： Diamond Innovations, Inc.

发明人： Anthony, Thomas Richard ,  Vagarali, Suresh Shankarappa

IPC分类号： B01J3/06

CPC分类号： B01J3/062 ,  B01J3/065 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0695

摘要： The present invention is directed to a method for treating discoloured natural diamonds, especially Type laB diamond and Type laA/B diamonds with platelets for improving their color. The method includes placing a discoloured natural diamond in a pressure transmitting medium (40) which is consolidated into a pill. Next, the pill is placed into a high pressure/high temperature (HP/HT) press (10) at elevated pressure and elevated temperature within the graphite stable or diamond stable range of the carbon phase diagram for a time sufficient to improve the color of said diamond. Finally, the diamond is recovered from said press (10). Attractive yellowish-green, greenish-yellow and neon yellow-green diamonds can be made by this method.

摘要翻译： 本发明涉及一种用于处理变色天然钻石，特别是具有片状的LaB金刚石和IaA / B型钻石以改善其颜色的方法。 该方法包括将变色的天然金刚石置于压力传递介质（40）中，所述压力传递介质被固结成丸剂。 接下来，将药丸置于高压/高温（HP / HT）压机（10）中，在碳相图的石墨稳定或金刚石稳定范围内的升高压力和升高的温度下，时间足以改善 说钻石。 最后，从所述压机（10）回收钻石。 可以通过这种方法制造出有吸引力的黄绿色，绿黄色和霓虹黄绿色的钻石。

公开(公告)号：EP1637218A2

公开(公告)日：2006-03-22

申请号：EP05025530.6

申请日：2001-08-08

申请人： Diamond Innovations, Inc.

发明人： Anthony, Thomas Richard ,  Casey, John K. ,  Smith, Alan C. ,  Vagarali, Suresh S. ,  Banholzer, William F. ,  Jackson, William E. ,  Webb, Steven W. ,  Kadioglu, Yavuz

IPC分类号： B01J3/06

CPC分类号： B30B11/004 ,  B01J3/065 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0695

摘要： The present invention is directed to a method for treating discoloured natural diamond, especially Type IIa diamond and Type IaA/B diamond with nitrogen as predominantly B centres, for improving its color. The method includes preblocking and preshaping a discoloured natural diamond to prevent its breakage in a high pressure/high temperature (HP/HT) press, placing said discoloured natural diamond in a pressure transmitting medium which is consolidated into a pill. Next, the pill is placed into a HP/HT press at elevated pressure and elevated temperature within the graphite-stable or diamond-stable range of the carbon phase diagram for a time sufficient to improve the color of said diamond. Finally, the diamond is recovered from said press. Colorless and fancy colored diamonds can be made by this method.

摘要翻译： 本发明涉及一种处理变色的天然金刚石，尤其是IIa型金刚石和IaA / B型金刚石的方法，其中氮主要为B中心，以改善其颜色。 该方法包括对变色的天然金刚石进行预先阻隔和预成型，以防止其在高压/高温（HP / HT）压机中破裂，将所述变色的天然金刚石放置在压实的介质中，该压力传递介质被固结成药丸。 接下来，将丸剂在石墨稳定或金刚石稳定的碳相图范围内升高的压力和升高的温度下放入HP / HT压机中足够长的时间以改善所述金刚石的颜色。 最后，钻石从所述印刷机中回收。 这种方法可以制作无色和花式彩色钻石。