公开(公告)号：US20170174886A1

公开(公告)日：2017-06-22

申请号：US15116091

申请日：2015-01-15

Applicant: Dow Corning Corporation

Inventor： SEVERINE CAUVIN ,  LORRY DEKLIPPEL ,  YIHAN LIU ,  ROBERT D. KENNEDY

IPC: C08L83/06 ,  A61K8/892 ,  C08G77/38 ,  A61Q5/06 ,  A61Q19/00 ,  A61K8/06 ,  A61Q5/12

CPC classification number: C08L83/06 ,  A61K8/062 ,  A61K8/892 ,  A61Q5/06 ,  A61Q5/12 ,  A61Q19/00 ,  C08G77/32 ,  C08G77/38 ,  C08L83/04 ,  C08L2201/52 ,  C08L2203/02

Abstract: The invention relates to branched organopolysiloxanes and emulsions thereof, and to methods of preparation and uses of the branched organopolysiloxanes and emulsions thereof. A branched organopolysiloxane is prepared by the reaction of a branching agent with a substantially linear organopolysiloxane containing at least one hydroxyl or hydrolysable group bonded to silicon, in the presence of an inert fluid and a catalyst, such as a phosphazene catalyst. Phosphazene catalysts also have the advantage that the content of undesired low molecular weight cyclic silicones in the polymerisation product is low.

公开(公告)号：US20150353744A1

公开(公告)日：2015-12-10

申请号：US14759456

申请日：2014-03-12

Applicant: DOW CORNING CORPORATION

Inventor： JENNIFER A. DAOUST ,  JEAN-PAUL H. LECOMTE ,  DONALD TAYLOR LILES ,  YIHAN LIU ,  TIMOTHY ANDREW ROGGOW, II

IPC: C09D7/12 ,  D21J1/08 ,  C04B41/00 ,  C04B41/49 ,  C04B41/84 ,  C04B41/64

CPC classification number: C09D7/63 ,  C04B41/009 ,  C04B41/4916 ,  C04B41/4961 ,  C04B41/64 ,  C04B41/84 ,  C04B2111/00293 ,  C08G77/12 ,  C08L83/04 ,  C09D7/41 ,  D21J1/08 ,  C08L83/00 ,  C04B41/502

Abstract: A hydrolysis resistant aqueous emulsion includes a hydrolyzable silicon containing compound. This emulsion is formed by a method that includes the step of (A) forming a seed emulsion that includes (1) an emulsifier, (2) water, and (3) a first oil phase. The method also includes the step of (B) adding a second oil phase, including a hydrolyzable silicon containing compound, to the seed emulsion. A weight ratio of the second oil phase including the hydrolyzable silicon containing compound to the first oil phase in the seed emulsion is from 0.5 to 50. Moreover, a total weight of the first and second oil phases in the emulsion is at least 60 weight percent.

Abstract translation: 耐水解水乳液包括可水解的含硅化合物。 该乳液通过包括（A）形成种子乳液的步骤的方法形成，所述种子乳液包括（1）乳化剂，（2）水和（3）第一油相。 该方法还包括（B）向种子乳液中加入包含可水解含硅化合物的第二油相的步骤。 包含可水解硅化合物的第二油相与种子乳液中的第一油相的重量比为0.5至50.此外，乳液中第一和第二油相的总重量为至少60重量％ 。