Grayish-black encapsulated pigments and method of their production
    2.
    发明授权
    Grayish-black encapsulated pigments and method of their production 失效
    灰黑色胶囊颜料及其制作方法

    公开(公告)号:US5008223A

    公开(公告)日:1991-04-16

    申请号:US487295

    申请日:1990-03-02

    摘要: The grayish-black encapsulated pigments contain carbon black particles with specific surface areas of 10 to 1000 m.sup.2 /g (BET) encapsulated in colorless crystals of zirconium silicate. In order to produce the pigments, mixtures of zirconium oxide with a particle size distribution (D50 values) between 7 and 10 .mu.m and a spec. surface between 2 and 4 m.sup.2 /g, silicon oxide, carbon black and mineralizers are heated under reducing conditions to 900.degree. to 1400.degree. C. and calcined for 0.5 to 8 hours and recalcined under oxidizing conditions to remove the non-included carbon black. The encapsulated pigments of the invention are suitable for the pigmented coloration of glazes.

    摘要翻译: 灰黑色胶囊状颜料含有炭黑颗粒,其表面积为10至1000m2 / g(BET),其包封在无色硅酸锆晶体中。 为了制备颜料,氧化锆的混合物的粒度分布(D50值)在7和10μm之间, 表面积为2〜4m2 / g,氧化硅,炭黑和矿化剂在还原条件下加热至900〜1400℃,煅烧0.5〜8小时,在氧化条件下重新煅烧,除去未包含的炭黑。 本发明的胶囊化颜料适用于釉料着色着色。

    Method of producing decorations which are color-stable in a porcelain
firing and a pigment composition suitable therefor
    3.
    发明授权
    Method of producing decorations which are color-stable in a porcelain firing and a pigment composition suitable therefor 失效
    制造在瓷烧成色稳定的装饰品的方法和适用于其的颜料组合物

    公开(公告)号:US5389402A

    公开(公告)日:1995-02-14

    申请号:US59582

    申请日:1993-05-12

    CPC分类号: C03C8/14

    摘要: A method for producing decorations which are color-stable in a porcelain firing (glost firing), and a pigment composition suitable for this method, is disclosed. Inclusion pigments based on heavy-metal sulfides and selenides in an oxidic or silicate casing, especially ZrSiO.sub.4, result in more color-stable decorations in a porcelain firing if color-stabilizing auxiliary agents from the series of Zn compounds, especially ZnO or zinc-containing glass frits, or cerium(III) or cerium(IV) compounds, especially CeO.sub.2, are used in the decorative layer and/or glaze layer as color-stabilizing auxiliary agents. The amount used in the decorative layer is generally 5 to 50% by weight in the case of ZnO and CeO.sub.2, relative to the inclusion pigment. The pigment composition contains at least one of the color-stabilizing auxiliary agents in addition to an inclusion pigment.

    摘要翻译: 公开了一种在陶瓷烧制(烧釉)中颜色稳定的装饰品的制造方法和适用于该方法的颜料组合物。 基于重金属硫化物和硒化物的氧化物或硅酸盐壳体,特别是ZrSiO 4的包合颜料,如果来自一系列Zn化合物的颜色稳定助剂,特别是ZnO或含锌的颜料稳定的辅助剂,则在陶瓷焙烧中产生更多的颜色稳定的装饰物 玻璃料或铈(III)或铈(IV)化合物,特别是CeO 2,用作装饰层和/或釉层作为稳定颜料的助剂。 相对于包合颜料,在ZnO和CeO 2的情况下,装饰层中使用的量通常为5〜50重量%。 颜料组合物除了包含颜料之外还含有至少一种颜色稳定助剂。

    Inclusion pigments of zirconium silicate with included chromic oxide, a
process for the preparation and use thereof
    4.
    发明授权
    Inclusion pigments of zirconium silicate with included chromic oxide, a process for the preparation and use thereof 失效
    含有氧化铬的硅酸锆的包含颜料,其制备方法和用途

    公开(公告)号:US5330571A

    公开(公告)日:1994-07-19

    申请号:US847498

    申请日:1992-03-12

    CPC分类号: C09C1/0081 C01P2002/08

    摘要: Inclusion pigments are discolored having zirconium silicate as a casing component and chromium (III) oxide (Cr.sub.2 O.sub.3) as a discrete, included color compound. The included Cr.sub.2 O.sub.3 has a D.sub.50 value in the range of 0.1 to 3.0 .mu.m and a brilliant light green color. Contrary to non-included Cr.sub.2 O.sub.3 of identical value, the pigments of the present invention may be used for the preparation of decorations without problems and difficulties in their application and maintaining sharp lines and contours. The pigments are suitable for direct pressing and high temperature firing processes. They are prepared by fusing a mixture of zirconium dioxide, silicon dioxide, mineralizators and chromium oxide.

    摘要翻译: 包含颜料变色,其具有硅酸锆作为外壳组分和作为分散的包括彩色化合物的氧化铬(III)(Cr 2 O 3)。 所含的Cr 2 O 3的D 50值为0.1〜3.0μm,亮绿色。 与不含相同值的Cr 2 O 3相反,本发明的颜料可用于制备装饰品而不会出现问题,并且难以应用并保持尖锐的线条和轮廓。 颜料适用于直接压制和高温烧制工艺。 它们通过熔融二氧化锆,二氧化硅,矿化剂和氧化铬的混合物来制备。

    Coated spinel color pigments, process for their production and use
    5.
    发明授权
    Coated spinel color pigments, process for their production and use 失效
    涂层螺旋色素,其生产和使用过程

    公开(公告)号:US5194089A

    公开(公告)日:1993-03-16

    申请号:US697343

    申请日:1991-05-09

    摘要: Coated spinel color pigments with a core of a colored spinel, in particular CoAl.sub.2 O.sub.4, and a coating glassy layer of a silicate are described. The coating layer is essentially silicon dioxide and one or more oxides of the group of alkali metals, alkaline earth metals, and/or earth metals show a high resistance to bleeding in the presence of glass fluxes, as compared to uncoated spinels. The pigments are produced by sintering, for 0.5 to 5 hours, a powder mixture of the spinel, silicon dioxide, and at least one member chosen from the group of alkali metal halides, alkaline earth metal halides, earth metal halides and mixtures thereof as mineralizer at 900.degree. to 1,300.degree. C. The coated spinel color pigments are suitable for the production of ceramic decorations with improved contour sharpness.

    摘要翻译: 描述了具有着色尖晶石核心的涂覆的尖晶石颜料颜料,特别是CoAl 2 O 4,以及硅酸盐的涂层玻璃层。 与未涂覆的尖晶石相比,涂层基本上是二氧化硅,并且一组碱金属,碱土金属和/或土金属的一种或多种氧化物在玻璃熔体存在下显示出高的耐渗出性。 颜料通过将尖晶石,二氧化硅和选自碱金属卤化物,碱土金属卤化物,土金属卤化物及其混合物中的至少一种的粉末混合物烧结0.5至5小时来生产,作为矿化剂 在900至1300℃。涂覆的尖晶石颜料适用于生产具有改进的轮廓清晰度的陶瓷装饰。

    Method for making grey-black inclusion pigments
    6.
    发明授权
    Method for making grey-black inclusion pigments 失效
    制备灰黑色夹杂物颜料的方法

    公开(公告)号:US5205866A

    公开(公告)日:1993-04-27

    申请号:US857074

    申请日:1992-03-12

    IPC分类号: C09C1/00

    摘要: Gray-black inclusion pigments are made using zirconium silicate as the encasing substance and carbon black particles as the inclusion phase by annealing a mixture of zirconium dioxide, a source for silicon dioxide, carbon black and mineralizers under reducing conditions at 900.degree.-1400.degree. C. The process uses zeolites with an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of more than 4, preferably more than 10, as the SiO.sub.2 source. The depth of the color can be increased by also using an adhesion agent, especially silicon oil. The use of the zeolites facilities the employment of different zirconium dioxide qualities and permits the production of pigments with higher carbon black inclusion rates.

    摘要翻译: 灰黑色夹杂物颜料是通过在900-114℃的还原条件下退火二氧化锆,二氧化硅源,炭黑和矿化剂的混合物,使用硅酸锆作为包裹物质和炭黑颗粒作为夹杂相来制备的。 该方法使用SiO 2 / Al 2 O 3摩尔比大于4,优选大于10的SiO 2源的沸石。 也可以通过使用粘合剂,特别是硅油来增加颜色的深度。 使用沸石设备使用不同的二氧化锆质量,并允许生产具有较高碳黑夹杂率的颜料。

    Method of modifying molecular sieves by means of solid state ion
exchange, and a method for hydrogenating olefinic compounds
    7.
    发明授权
    Method of modifying molecular sieves by means of solid state ion exchange, and a method for hydrogenating olefinic compounds 失效
    通过固态离子交换法改性分子筛的方法,以及烯烃化合物的氢化方法

    公开(公告)号:US5545784A

    公开(公告)日:1996-08-13

    申请号:US419896

    申请日:1995-04-11

    CPC分类号: B01J37/30 B01J29/74

    摘要: Molecular sieves are modified by an ion exchange process where metal cations are introduced into the molecular sieves by means of solid state ion exchange. The solid state ion exchange can be carried out as follows: a weighed amount of calcined and activated zeolite is intimately mixed with a precalculated amount of PtCl.sub.2, PdCl.sub.2, RhCl.sub.3, CuCl.sub.2, V.sub.2 O.sub.5 or another compound of the noble metals (e.g., corresponding halides or oxides), the solids mixture is then heated in a current of inert gas (e.g., a current of helium gas or of nitrogen) to temperatures of 400.degree. to 600.degree. C., then cooled down to room temperature and subsequently reduced in a current of hydrogen for 10 to 14 hours at 280.degree. to 350.degree. C. in order to produce small metal clusters from the cationically introduced metal.

    摘要翻译: 分子筛通过离子交换方法进行改性,其中通过固态离子交换将金属阳离子引入分子筛中。 固态离子交换可以如下进行:称重量的煅烧和活化的沸石与预先计算量的PtCl 2,PdCl 2,RhCl 3,CuCl 2,V 2 O 5或贵金属的另一种化合物(例如,相应的卤化物或 氧化物),然后将固体混合物在惰性气体(例如,氦气或氮气流)中加热至400至600℃的温度,然后冷却至室温,随后减少电流 的氢气在280〜350℃下进行10〜14小时,以从阳离子导入的金属产生小的金属簇。

    Gray-black encapsulated pigments and method for their preparation
    8.
    发明授权
    Gray-black encapsulated pigments and method for their preparation 失效
    灰黑色胶囊颜料及其制备方法

    公开(公告)号:US5019169A

    公开(公告)日:1991-05-28

    申请号:US487294

    申请日:1990-03-02

    CPC分类号: C09C1/0012 C01P2002/08

    摘要: Gray-black pigments are prepared by encapsulating iron titanates of formula FeTiO.sub.3 in zirconium silicate crystals. Manufacture is by calcining a mixture of zirconium oxide having a particle size distribution of 6 to 10 .mu.m and a specific surface area of 2 to 5.2 m.sup.2 /g, silicon dioxide and iron and titanium oxides or Fe and Ti compounds forming oxides in the presence of mineralizers under oxidizing conditions at 800 to 1300.degree. C. Finely divided FeTiO.sub.3 can also be used.

    摘要翻译: 通过将式FeTiO 3的铁钛酸盐包覆在硅酸锆晶体中制备灰黑色颜料。 制造是通过煅烧粒度分布为6〜10μm,比表面积为2〜5.2m 2 / g的氧化锆的混合物,二氧化硅和铁和钛的氧化物,或Fe和Ti化合物形成氧化物的存在 的矿化剂在800至1300℃的氧化条件下。也可以使用细分的FeTiO 3。

    Brown spinel pigments based on zinc chromite, method of their production
and use
    9.
    发明授权
    Brown spinel pigments based on zinc chromite, method of their production and use 失效
    基于铬铁矿的棕色尖晶石颜料,其生产和使用方法

    公开(公告)号:US5254162A

    公开(公告)日:1993-10-19

    申请号:US946574

    申请日:1992-09-18

    摘要: Brown spinel pigments based on zinc chromite which are iron-free and exhibit an atomic ratio of chromium to zinc in a range of 1 to greater than 0.5 up to 2 are disclosed. Preferred pigments additionally contain manganese, in which instance the atomic ratio of Mn to Cr is a maximum of 0.2. The production of the pigments involves a firing process of a powder mixture consisting of the oxides the metals, or precursors thereof, contained in the pigment. Instead of previously known grayish-brown unattractive products, attractive brown pigments are obtained by means of the selected molar ratio and a baking temperature above 1200.degree. C. The novel pigments can be used in the presence of glass frits even at firing temperatures above 1200.degree. C. to 1500.degree. C. and are suitable for a common firing of ceramic carrier and decoration.

    摘要翻译: 公开了基于铬铁矿的褐铁矿颜料,其为无铁的,并且具有1至大于0.5至2的范围内的铬与锌的原子比。 优选的颜料还含有锰,其中Mn与Cr的原子比最大为0.2。 颜料的制备包括由氧化物组成的粉末混合物的烧制过程,其包含在颜料中的金属或其前体。 代替以前已知的灰棕色不吸引产品,通过所选摩尔比和1200℃以上的烘烤温度获得有吸引力的棕色颜料。即使在高于1200℃的烧成温度下,也可以在玻璃料的存在下使用新型颜料。 C.到1500℃,适用于陶瓷载体和装饰的常见烧制。

    Neutral blue zirconium-vanadium pigments
    10.
    发明授权
    Neutral blue zirconium-vanadium pigments 失效
    中性蓝色锆 - 钒颜料

    公开(公告)号:US5252126A

    公开(公告)日:1993-10-12

    申请号:US59581

    申请日:1993-05-12

    IPC分类号: C08K3/32 C09C1/00 C08K3/00

    摘要: Disclosed are neutral blue zirconium-vanadium pigments which do not display the disadvantages of previously known generic pigments, namely the high green component and the low color intensity and insufficient reproducibility in the case of neutral blue pigments. The neutral blue pigments with a rather high color intensity and good reproducibility are doped in the host lattice with phosphorus in addition to vanadium and are characterized by their color values in the CIE L*a*b* system. In order to produce such pigments, a zirconium-free mixture of powdery ZrO.sub.2, an SiO.sub.2 source, a vanadium compound and a phosphorus compound with an atomic ratio of Zr:Si:V:P=1:(0.95-1.10):(0.05-0.20):(0.005-0.03) as well as of a fluoride mineralizer is annealed after intensive grinding at 700.degree. to 900.degree. C.

    摘要翻译: 公开了中性蓝色锆钒颜料,其不显示先前已知的通用颜料的缺点,即高的绿色成分和低的颜色强度以及在中性蓝色颜料的情况下的不足的再现性。 具有相当高的颜色强度和良好重现性的中性蓝色颜料除了钒之外还在磷中掺杂在主晶格中,并且其特征在于它们在CIE L * a * b *系统中的颜色值。 为了制备这种颜料,可以使用锆ZrO 2,SiO 2源,钒化合物和原子比为Zr:Si:V:P = 1:(0.95-1.10):0.05的无锆锆混合物 -0.20):( 0.005-0.03)以及氟化物矿化剂在700〜900℃进行强力研磨后退火。