公开(公告)号：US11643505B2

公开(公告)日：2023-05-09

申请号：US17203341

申请日：2021-03-16

申请人： DOW TORAY CO., LTD.

发明人： Seiji Hori ,  Yasue Kanzaki ,  Hiroko Taniguchi ,  Mari Wakita

IPC分类号： C08G77/50 ,  A61K8/891 ,  A61Q1/12 ,  A61Q19/00 ,  A61Q1/02 ,  A61Q17/04 ,  C08G77/08 ,  C08L83/14 ,  C09D7/65 ,  C09D7/40

CPC分类号： C08G77/50 ,  A61K8/891 ,  A61Q1/02 ,  A61Q1/12 ,  A61Q17/04 ,  A61Q19/00 ,  C08G77/08 ,  C08L83/14 ,  A61K2800/412 ,  C08L2312/08 ,  C09D7/65 ,  C09D7/69

摘要： Silicone particles having excellent dispersibility are provided via the method herein. A cosmetic material having excellent feeling of use, and a highly functional paint and an electronic material are also provided. The silicone particles include a siloxane as a component. A content of a hydrogen atom bonded to a silicon atom per unit mass is 300 ppm or less, or optionally is 20 ppm or less. In addition, the silicon atom in the siloxane as a component for the silicone particles is crosslinked with another silicon atom via an alkylene group having a carbon number of 4 to 20.

公开(公告)号：US12060464B2

公开(公告)日：2024-08-13

申请号：US17418352

申请日：2019-12-20

申请人： DOW TORAY CO., LTD.

发明人： Mari Wakita ,  Hiroko Taniguchi ,  Takeshi Yoshizawa ,  Yasue Kanzaki

IPC分类号： C08J3/12 ,  C08G77/08 ,  C08G77/12 ,  C08G77/18 ,  C08G77/20 ,  C08K9/06 ,  C09D7/40 ,  C09D7/65

CPC分类号： C08J3/126 ,  C08G77/08 ,  C08G77/12 ,  C08G77/18 ,  C08G77/20 ,  C08K9/06 ,  C09D7/65 ,  C09D7/68 ,  C09D7/69 ,  C09D7/70 ,  C08G2150/00

摘要： Provided is a silicone resin coated silicone elastomer particle which can be easily produced on an industrial scale, has superior dispersibility and oil absorptivity in a curable organic resin such as an epoxy resin, and has superior workability due to low secondary aggregation compared to conventional silicone elastomer particles. Also provided are applications containing the particles such as organic resin additives, organic resins, coating compositions or coating agent compositions, and cosmetic compositions. The silicone resin coated silicone elastomer particles have part or all of their surface coated with a silicone resin made up of two types of siloxane units. The siloxane units are selected from D units represented by R2SiO2/2, T units represented by RSiO3/2, and Q units represented by SiO4/2. The particles also have a structure in which at least two silicon atoms in the particles are cross-linked by a silalkylene group with 2 to 20 carbon atoms.