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公开(公告)号：US07438754B2
公开(公告)日：2008-10-21
申请号：US11662733
申请日：2005-09-16
CPC分类号： C09C1/0009 , B82Y30/00 , C01G51/04 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/60
摘要： Disclosed is a black pigment having adequate degree of blackness and high electrical resistance at the same time. Specifically disclosed is a granular black pigment containing cobalt which is characterized in that it is composed of an oxide containing at least cobalt and the divalent cobalt content accounts for 40-70% of the total cobalt content. It is preferable that the total cobalt content in a whole particle is 60-80% by mass, and the divalent cobalt content in a whole particle is 20-50% by mass. It is also preferable that the primary particle diameter is 0.02-0.6 μm.
摘要翻译： 公开了同时具有足够的黑度和高电阻的黑色颜料。 具体公开的是含有钴的粒状黑色颜料，其特征在于它由至少含有钴的氧化物组成，二价钴含量占总钴含量的40-70％。 整个颗粒中的总钴含量优选为60〜80质量％，整个颗粒中的二价钴含量为20〜50质量％。 另外，一次粒径优选为0.02〜0.6μm。
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公开(公告)号：US20080075653A1
公开(公告)日：2008-03-27
申请号：US11662733
申请日：2005-09-16
IPC分类号： C01G51/04
CPC分类号： C09C1/0009 , B82Y30/00 , C01G51/04 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/60
摘要： Disclosed is a black pigment having adequate degree of blackness and high electrical resistance at the same time. Specifically disclosed is a granular black pigment containing cobalt which is characterized in that it is composed of an oxide containing at least cobalt and the divalent cobalt content accounts for 40-70% of the total cobalt content. It is preferable that the total cobalt content in a whole particle is 60-80% by mass, and the divalent cobalt content in a whole particle is 20-50% by mass. It is also preferable that the primary particle diameter is 0.02-0.6 μm.
摘要翻译： 公开了同时具有足够的黑度和高电阻的黑色颜料。 具体公开的是含有钴的粒状黑色颜料，其特征在于它由至少含有钴的氧化物组成，二价钴含量占总钴含量的40-70％。 整个颗粒中的总钴含量优选为60〜80质量％，整个颗粒中的二价钴含量为20〜50质量％。 另外，一次粒径优选为0.02〜0.6μm。
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公开(公告)号：US20090269585A1
公开(公告)日：2009-10-29
申请号：US11909874
申请日：2006-03-27
CPC分类号： C01G51/006 , C01G51/00 , C01G53/00 , C01G53/006 , C01P2002/32 , C01P2002/52 , C01P2004/20 , C01P2004/62 , C01P2006/11 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C08K3/22 , C09C1/00 , C09C1/0009 , C09D5/24 , C09D7/61 , C09D7/68 , H01B1/08 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993
摘要： The complex oxide particles of the present invention are conductive and exhibit a black color. The particles contain cobalt in an amount of 40 to 65% by mass in terms of the metal element based on the whole particles and at least one kind or two or more kinds of metals selected from copper, nickel and molybdenum. The particles are preferably prepared in the following manner: an aqueous solution of mixed metal salts prepared from water-soluble salts, wherein the aqueous solution contains cobalt and one kind or two or more kinds of metal element selected from copper, nickel and molybdenum, is mixed and neutralized with an alkali hydroxide to obtain a metal hydroxide slurry; the resultant slurry of metal hydroxides is kept at a pH of 10 to 13 and oxidized at a temperature of higher than 40° C. and 60° C. or less to obtain a precursor slurry; the resultant precursor slurry is aged at 80 to 150° C.; and then, after solid-liquid separation, the resultant solid is heated at 400 to 700° C. for longer than 1 hour and 3 hours or less.
摘要翻译： 本发明的复合氧化物粒子是导电性的，呈黑色。 颗粒含有的金属元素相对于整个颗粒为40〜65质量％的钴和选自铜，镍和钼中的至少一种或两种以上的金属。 颗粒优选以如下方式制备：由水溶性盐制备的混合金属盐的水溶液，其中所述水溶液含有钴和选自铜，镍和钼中的一种或两种或更多种金属元素， 混合并用碱金属氢氧化物中和，得到金属氢氧化物浆料; 将所得的金属氢氧化物浆液保持在10〜13的pH，在高于40℃，60℃以下的温度下进行氧化，得到前体浆料; 所得前体浆料在80-150℃下老化; 然后在固液分离后，将所得固体在400-700℃下加热1小时以上3小时以下。
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