Composition based on samarium sesquisulphide, preparation method and use as coloring pigment
    1.
    发明授权
    Composition based on samarium sesquisulphide, preparation method and use as coloring pigment 有权
    基于钐四硫化物的组成,制备方法和用作着色颜料

    公开(公告)号:US06419735B1

    公开(公告)日:2002-07-16

    申请号:US09485385

    申请日:2000-05-19

    Abstract: The composition is based on a samarium sesquisulphide, it exhibits a samarium purity with respect to other rare earth metals of greater than 99% and it comprises at least one alkali metal or alkaline earth metal element, at least a portion of which is included in the crystal lattice of the said sesquisulphide. According to another embodiment, the composition is based on a sesquisulphide of samarium and of at least one rare earth metal which is solely trivalent and it comprises at least one alkali metal or alkaline earth metal element, at least a portion of which is included in the crystal lattice of the said sesquisulphide. According to a third embodiment, the composition exhibits a samarium purity such that the cerium content is less than 1%. The process consists in reacting samarium, trivalent rare earth metal and alkali metal or alkaline earth metal compounds with a gaseous mixture of hydrogen sulphide and of carbon disulphide.

    Abstract translation: 该组合物基于钐倍半硫化物,相对于大于99%的其它稀土金属显示钐纯度,并且其包含至少一种碱金属或碱土金属元素,其至少一部分包括在 所述倍半硫化物的晶格。 根据另一个实施方案,该组合物是基于钐的倍半硫化物和至少一种仅为三价的稀土金属,并且其包含至少一种碱金属或碱土金属元素,其至少一部分包括在 所述倍半硫化物的晶格。 根据第三实施方案,组合物显示钐纯度,使得铈含量小于1%。 该方法包括使钐,三价稀土金属和碱金属或碱土金属化合物与硫化氢和二硫化碳的气体混合物反应。

    Sulphur compounds coated with a zinc compound for use as pigments
    2.
    发明授权
    Sulphur compounds coated with a zinc compound for use as pigments 失效
    涂有锌化合物的硫化合物用作颜料

    公开(公告)号:US6136084A

    公开(公告)日:2000-10-24

    申请号:US68871

    申请日:1998-05-20

    Abstract: The present invention relates to a composition based on a sulphur compound, zinc and optionally a transparent oxide, to a process for its preparation and to its use as a dye pigment. The composition of the invention is characterized in that it comprises a support based on at least one sulphur compound, and a zinc compound, deposited on the support and obtained by reaction of a zinc precursor with aqueous ammonia and/or an ammonium salt. The composition may also comprise a layer based on at least one transparent oxide deposited at the surface of the support and/or fluorine atoms. It may be prepared in particular by a process in which the support, a zinc precursor, aqueous ammonia and/or an ammonium salt and, if necessary, a transparent oxide precursor and a fluorinating agent are placed in contact and the zinc compound is deposited on the support and, where appropriate, the transparent oxide is precipitated on the said support.

    Abstract translation: PCT No.PCT / FR96 / 01853第 371日期:1998年5月20日 102(e)日期1998年5月20日PCT 1996年11月22日PCT PCT。 公开号WO97 / 20002 PCT 日期:1997年6月5日本发明涉及一种基于硫化合物,锌和任选的透明氧化物的组合物,涉及其制备方法及其作为染料颜料的用途。 本发明的组合物的特征在于,其包含基于至少一种硫化合物的载体和沉积在载体上并通过锌前体与氨水和/或铵盐反应获得的锌化合物。 组合物还可以包含基于沉积在载体表面和/或氟原子上的至少一种透明氧化物的层。 其特别可以通过以下方法制备:其中载体,锌前体,氨水和/或铵盐,以及必要时,透明氧化物前体和氟化剂接触并将锌化合物沉积在 支撑体和适当的情况下透明氧化物沉淀在所述载体上。

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