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    METHOD OF PREPARING ORGANOSILOXANE
    3.
    发明公开
    METHOD OF PREPARING ORGANOSILOXANE 审中-公开

    公开(公告)号：EP3371244A1

    公开(公告)日：2018-09-12

    申请号：EP16794875.1

    申请日：2016-11-01

    申请人： Dow Corning Corporation

    发明人： GAMMIE, Andy ,  MINGES, Stephanie

    IPC分类号： C08G77/06 ,  C08G77/16 ,  C08G77/24

    CPC分类号： C08G77/06 ,  C08G77/16 ,  C08G77/24

    摘要： A method of preparing an organosiloxane comprises cohydrolyzing a mixture comprising a first silane compound having the general formula R2SiX2 and a second silane compound having the general formula R3SiR1 in the presence of an aqueous acid, wherein each R is independently selected from H and a hydrocarbyl group, each X is an independently selected halogen atom, and R1 is X or OSiR3. The organosiloxane is prepared in a reaction product. Optionally, the method comprises isolating the organosiloxane from the reaction product. The organosiloxane has the general formula R3SiO(R2SiO)nH, wherein n is an integer from 1 to 200.

    PROCESS FOR PREPARING CLUSTERED FUNCTIONAL POLYORGANOSILOXANES, AND METHODS FOR THEIR USE
    5.
    发明授权
    PROCESS FOR PREPARING CLUSTERED FUNCTIONAL POLYORGANOSILOXANES, AND METHODS FOR THEIR USE 有权

    公开(公告)号：EP2499185B1

    公开(公告)日：2018-07-04

    申请号：EP10773825.4

    申请日：2010-11-03

    申请人： Dow Corning Corporation

    发明人： DENT, Stanton ,  SU, Kai ,  TONGE, Lauren ,  TONGE, James

    IPC分类号： C08G77/50 ,  C08L83/14

    CPC分类号： C08G77/50 ,  C08L83/14

    摘要： A hydrosilylation process is used to prepare a polyorganosiloxane having clustered functional groups at the polyorganosiloxane chain terminals. The ingredients used in the process include a) a polyorganosiloxane having an average of at least 2 aliphatically unsaturated organic groups per molecule, b) a polyorganohydrogensiloxane having an average of 4 to 15 silicon atoms per molecule and at least 4 silicon bonded hydrogen atoms for each aliphatically unsaturated organic group in ingredient a), c) a reactive species having, per molecule at least 1 aliphatically unsaturated organic group and 1 or more curable groups; and d) a hydrosilylation catalyst. The resulting clustered functional polyorganosiloxane is useful in a curable silicone composition for electronics applications.

    FLUID COMPOSITIONS AND PERSONAL CARE
    10.
    发明公开
    FLUID COMPOSITIONS AND PERSONAL CARE 审中-公开
    流体组合物和个人护理

    公开(公告)号：EP3280388A1

    公开(公告)日：2018-02-14

    申请号：EP16717522.3

    申请日：2016-04-04

    申请人： Dow Corning Corporation

    发明人： KADLEC, Donald ,  LI, Zhi ,  NGUYEN, Kimmai, Thi ,  THOMAS, Ryan, Christopher ,  VOGEL, Jason, A.

    IPC分类号： A61K8/894 ,  A61K8/898 ,  A61K8/891

    CPC分类号： A61K8/894 ,  A61K8/04 ,  A61K8/8152 ,  A61K8/891 ,  A61K8/898 ,  A61K2800/10 ,  A61Q19/00

    摘要： A fluid composition comprises I) a first component and II) second component different from the first component I). The first component I) comprises at least one copolymer. The copolymer can include a cross-linked siloxane (e.g. a cross-linked aminosiloxane), a silicone polyether copolymer (e.g. an (AB)n silicone polyether copolymer), and/or a saccharide siloxane copolymer. The second component II) comprises an organopolysiloxane resin (e.g. an MQ resin) and/or an acrylate copolymer. The fluid composition can further comprise a carrier fluid, such as a silicone, an organic solvent, and/or an organic oil. The fluid composition may have a viscosity of at least 100 mPa·s at 23° C. and exhibit pituitous rheological properties (generally determined from a plot of normal force (in Pascals) vs a perpendicular shear rate in (sec−1)). Also disclosed is a personal care composition that comprises the fluid composition.