公开(公告)号：US20210309811A1

公开(公告)日：2021-10-07

申请号：US17347864

申请日：2021-06-15

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kaori KUWAGAKI ,  Akiyoshi KUSAKA

IPC: C08J3/16 ,  A61K8/02 ,  A61K8/85 ,  A61Q19/00 ,  C08G63/06 ,  C08G63/08 ,  C08G63/16 ,  C08J3/11 ,  C09D5/03 ,  C09D167/02 ,  C09D167/04 ,  C08J3/12

Abstract: Generally spherical resin particles formed of a thermoplastic resin, having a sphericity of 0.90 to 1.00, a light scattering index of 0.5 to 1.0 and a linseed oil absorption of 30 to 150 mL/100 g.

公开(公告)号：US20210161776A1

公开(公告)日：2021-06-03

申请号：US17173334

申请日：2021-02-11

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Akiyoshi KUSAKA ,  Yoshinao YAMAJI ,  Ryosuke HARADA

IPC: A61K8/11 ,  A61K8/25 ,  A61Q19/00 ,  A61K8/02 ,  C01B33/159 ,  G02B1/04 ,  B32B27/18 ,  C09D7/40 ,  A61Q1/00 ,  G02B5/02 ,  B01J13/06 ,  C09D7/65 ,  C09D7/61 ,  A61Q1/12 ,  B01J13/18

Abstract: Silica-including microcapsule resin particles including an outer shell constituted of a crosslinked polymer and a cavity partitioned with the outer shell, in which the silica-including microcapsule resin particles contain inside the cavity a porous structure in which silica particles are mutually connected, and have a volume average particle diameter of 0.5 to 100 μm.

公开(公告)号：US20190053990A1

公开(公告)日：2019-02-21

申请号：US16070675

申请日：2017-02-27

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Akiyoshi KUSAKA ,  Yoshinao YAMAJI ,  Ryosuke HARADA

IPC: A61K8/11 ,  C09D7/40 ,  C09D7/61 ,  C09D7/65 ,  A61K8/02 ,  A61K8/25 ,  A61Q19/00 ,  A61Q1/12 ,  B01J13/18 ,  G02B5/02

Abstract: Silica-including microcapsule resin particles including an outer shell constituted of a crosslinked polymer and a cavity partitioned with the outer shell, in which the silica-including microcapsule resin particles contain inside the cavity a porous structure in which silica particles are mutually connected, and have a volume average particle diameter of 0.5 to 100 μm.

公开(公告)号：US20180265663A1

公开(公告)日：2018-09-20

申请号：US15762650

申请日：2016-09-08

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kaori KUWAGAKI ,  Akiyoshi KUSAKA

IPC: C08J9/28 ,  C08J3/14

CPC classification number: C08J9/28 ,  C08J3/14 ,  C08J2329/00

Abstract: A manufacturing method for porous resin microparticles comprising steps of: heating a polyester thermoplastic resin having biodegradability to a temperature of 80° C. or higher and 200° C. or lower in a glycol ether solvent to obtain a solution, and cooling the solution to precipitate the polyester thermoplastic resin as porous resin microparticles.

公开(公告)号：US20210079190A1

公开(公告)日：2021-03-18

申请号：US17106518

申请日：2020-11-30

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kaori KUWAGAKI ,  Akiyoshi KUSAKA

IPC: C08J9/28 ,  C08J3/14

Abstract: A manufacturing method for porous resin microparticles comprising steps of: heating a polyester thermoplastic resin having biodegradability to a temperature of 80° C. or higher and 200° C. or lower in a glycol ether solvent to obtain a solution, and cooling the solution to precipitate the polyester thermoplastic resin as porous resin microparticles.

公开(公告)号：US20190276611A1

公开(公告)日：2019-09-12

申请号：US16318808

申请日：2016-07-22

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kaori KUWAGAKI ,  Akiyoshi KUSAKA

IPC: C08J3/16 ,  C08J3/11 ,  C08G63/16 ,  C08G63/08 ,  C08G63/06 ,  C09D5/03 ,  C09D167/02 ,  C09D167/04 ,  A61Q19/00 ,  A61K8/85 ,  A61K8/02

Abstract: Generally spherical resin particles formed of a thermoplastic resin, having a sphericity of 0.90 to 1.00, a light scattering index of 0.5 to 1.0 and a linseed oil absorption of 30 to 150 mL/100 g.

公开(公告)号：US20190055425A1

公开(公告)日：2019-02-21

申请号：US16165238

申请日：2018-10-19

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Toshiki TAKENAKA ,  Mayumi TAKAYAMA ,  Akiyoshi KUSAKA ,  Masaaki NAKAMURA

IPC: C09D133/12 ,  C09D201/00 ,  C08F2/44 ,  C08F220/14 ,  C09D7/61 ,  C08F2/18 ,  C09D7/40 ,  C08K3/36

Abstract: In a method for producing composite particles containing polymer particles and silica particles that adhere to the polymer particles, the composite particles are obtained by subjecting a polymerizable monomer to aqueous suspension polymerization in a presence of silica particles and a cellulose compound adsorbing onto the silica particles. The composite particles contain the polymer particles, the silica particles that adhere to surfaces of the polymer particles, and the water-soluble cellulose compound.

公开(公告)号：US20180208721A1

公开(公告)日：2018-07-26

申请号：US15746153

申请日：2016-08-18

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Akiyoshi KUSAKA ,  Kaori KUWAGAKI ,  Ryosuke HARADA

IPC: C08J3/12 ,  C08G63/183 ,  C09D7/40 ,  A61K8/85 ,  A61K8/02 ,  A61Q1/12 ,  A61Q19/00

CPC classification number: C08J3/12 ,  A61K8/0241 ,  A61K8/85 ,  A61K2800/412 ,  A61Q1/12 ,  A61Q19/00 ,  A61Q19/007 ,  C08G63/183 ,  C08J2367/02 ,  C09D7/40 ,  C09D7/69

Abstract: Polyester-based resin particles including a polyester-based resin as a base resin, in which the base resin exhibits a plurality of endothermic peaks corresponding to crystal melting temperatures by DSC measurement, at least one of the endothermic peaks exists in each region of a low temperature side region and a high temperature side region, a maximum endothermic peak of the low temperature side region and a maximum endothermic peak of the high temperature side region exhibit a crystal melting heat amount ratio (low temperature side crystal melting heat amount/high temperature side crystal melting heat amount) in a range of 0.1 to 1.5, and the polyester-based resin particles have a volume average particle diameter of 1 to 50 μm.

公开(公告)号：US20170260342A1

公开(公告)日：2017-09-14

申请号：US15509231

申请日：2015-09-09

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Akiyoshi KUSAKA ,  Kaori KUWAGAKI ,  Ryosuke HARADA

IPC: C08J3/24 ,  A61Q1/12 ,  A61K8/06 ,  A61Q1/02 ,  C08G18/78 ,  C08G18/44 ,  C08G18/34 ,  C08G18/32 ,  C08G18/48 ,  C08G18/73 ,  C09D175/16 ,  C08G18/83 ,  C08G18/66 ,  C08K3/36 ,  A61K8/87

CPC classification number: C08J3/24 ,  A61K8/06 ,  A61K8/81 ,  A61K8/87 ,  A61K2800/412 ,  A61Q1/02 ,  A61Q1/12 ,  A61Q19/00 ,  C08F2/18 ,  C08F2/44 ,  C08F290/06 ,  C08F299/06 ,  C08G18/10 ,  C08G18/3221 ,  C08G18/348 ,  C08G18/44 ,  C08G18/4829 ,  C08G18/6607 ,  C08G18/664 ,  C08G18/672 ,  C08G18/6725 ,  C08G18/73 ,  C08G18/7837 ,  C08G18/8016 ,  C08G18/8025 ,  C08G18/831 ,  C08J2375/16 ,  C08K3/36 ,  C08L55/00 ,  C09D7/40 ,  C09D175/16 ,  C09D201/00

Abstract: A high-recoverability resin particles having a mean particle size of 1 to 100 μm containing a crossdinked (meth)acrylic acid ester-based resin, wherein the high-recoverability resin particles have a recovery rate of 22% or greater, and a 30% compression strength of 1.5 to 5.0 kgf/mm2.

公开(公告)号：US20160280936A1

公开(公告)日：2016-09-29

申请号：US15035018

申请日：2013-11-13

Applicant: Sekisui Plastics Co., Ltd.

Inventor： Toshiki TAKENAKA ,  Mayumi TAKAYAMA ,  Akiyoshi KUSAKA ,  Masaaki NAKAMURA

IPC: C09D7/12 ,  C09D133/12

CPC classification number: C09D133/12 ,  C08F2/18 ,  C08F2/44 ,  C08F220/14 ,  C08J3/126 ,  C08J3/128 ,  C08J2333/06 ,  C08J2401/04 ,  C08K3/36 ,  C09D7/40 ,  C09D7/61 ,  C09D201/00 ,  C08F2222/1013 ,  C08F2222/1026

Abstract: In a method for producing composite particles containing polymer particles and silica particles that adhere to the polymer particles, the composite particles are obtained by subjecting a polymerizable monomer to aqueous suspension polymerization in a presence of silica particles and a cellulose compound adsorbing onto the silica particles. The composite particles contain the polymer particles, the silica particles that adhere to surfaces of the polymer particles, and the water-soluble cellulose compound.

Abstract translation: 在含有聚合物颗粒和附着于聚合物颗粒上的二氧化硅颗粒的复合颗粒的制备方法中，通过在二氧化硅颗粒和吸附在二氧化硅颗粒上的纤维素化合物的存在下使可聚合单体进行水性悬浮聚合而获得复合颗粒。 复合颗粒包含聚合物颗粒，粘附到聚合物颗粒表面的二氧化硅颗粒和水溶性纤维素化合物。