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43 条记录 (耗时 0.017 秒)

    CONJUGATED DIENE PHOSPHINATE COMPOUNDS, PREPARATION METHOD AND USE THEREOF
    7.
    发明公开
    CONJUGATED DIENE PHOSPHINATE COMPOUNDS, PREPARATION METHOD AND USE THEREOF 审中-公开
    共轭DIENPHOSPHINATVERBINDUNGEN，制造方法和使用

    公开(公告)号：EP2493901A1

    公开(公告)日：2012-09-05

    申请号：EP09850743.7

    申请日：2009-10-30

    申请人： Rhodia (China) Co., Ltd.

    发明人： LIU, Zhaoqing ,  DE CAMPO, Floryan

    IPC分类号： C07F9/32 ,  C08K5/51

    CPC分类号： C07F9/4825 ,  C07F9/302 ,  C07F9/3217 ,  C08K5/5313 ,  C09K21/12

    摘要： This invention relates to conjugated diene phosphinate compounds for making halogen free phosphinate-containing flame retardants, inimer and metal extractants, method for preparing said compounds from unsaturated ketones or aldehydes, and the 5 use thereof. The compounds of the present invention having the following formula (III), wherein R1, R2, R3, R4, R5 and R6 represent, independently, hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, heterocycloalkyl, or alkenyl groups; R7 represents hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, alkenyl groups, or metals selected from the group consisting of Na, Li, Ca.

    PROCESS FOR STABILIZING HYPOPHOSPHITE
    8.
    发明公开
    PROCESS FOR STABILIZING HYPOPHOSPHITE 审中-公开
    方法用于稳定次

    公开(公告)号：EP2490984A1

    公开(公告)日：2012-08-29

    申请号：EP09850507.6

    申请日：2009-10-23

    申请人： Rhodia (China) Co., Ltd.

    发明人： DE CAMPO, Floryan ,  MURILLO, Annelyse ,  LI, Junli ,  ZHANG, Tingting

    IPC分类号： C01B25/165 ,  C08K3/32

    CPC分类号： C01B25/165 ,  C09K21/04

    摘要： A process for stabilizing hypophosphite salt is provided, which comprises the following steps: a) washing the hypophosphite salt at least one time under a controlled pH value of 4-11, preferably 5-8, as the said hypophosphite salt in an aqueous solution and/or in a solid state; and b) drying the said hypophosphite salt under reduced pressure to remove the volatiles. The process can prevent or minimize the formation of a dangerous quantity of phosphine from hypophosphite salts, more particularly in the flame retardant of the application. The flame retardant polymer composition is also provided, which comprises a polymer and the hypophosphite salt stabilized by the above process.

    A CERIUM-BASED PARTICLE COMPOSITION AND THE PREPARATION THEREOF
    9.
    发明公开
    A CERIUM-BASED PARTICLE COMPOSITION AND THE PREPARATION THEREOF 审中-公开
    CE-BASED颗粒组成和生产

    公开(公告)号：EP2419486A1

    公开(公告)日：2012-02-22

    申请号：EP09843187.7

    申请日：2009-04-15

    申请人： Rhodia (China) Co., Ltd.

    发明人： HUANG, Aimin ,  ZHOU, Zhuohua

    IPC分类号： C09K3/14 ,  C01F17/00 ,  B24B37/00

    CPC分类号： B24B7/24 ,  B24B13/015 ,  C09K3/1463

    摘要： A cerium based particle composition comprises: 50-90% by weight of cerium oxide, and at least 10% by weight of lanthanum oxide. The method to prepare the particle composition comprises: one or more water soluble salts of transition metal elements and/or alkaline metal elements are mixed with CeLaCl
    3 solution; the mixed solution is precipitated with carbonate(s) and/or hydroxide(s) to obtain rare earth carbonate(s) doped by said one or more transition metal elements and/or alkaline metal elements; the carbonate(s) is calcined and crushed to obtain the said particle composition. The said composition can be mixed with water, optionally at the presence of additive(s), in order to obtain an abrasive for polishing glass for liquid crystal display and hard recording medium, particularly in the use of polishing glass substrate industry.