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：US20190284320A1

公开(公告)日：2019-09-19

申请号：US16337493

申请日：2017-09-29

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Ryosuke HARADA

IPC: C08F212/12 ,  G01N33/533 ,  C09D5/22 ,  C08F212/08 ,  C09D125/14 ,  C09D125/16 ,  C08F220/68 ,  C09D133/08 ,  C08F218/10 ,  C09D131/02 ,  C09B11/24 ,  C09B67/46

Abstract: Fluorescent resin particles which comprise a water-soluble fluorescent dye and a polymer made from a monomer mixture.

公开(公告)号：US20200325283A1

公开(公告)日：2020-10-15

申请号：US16088925

申请日：2017-03-31

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Ryosuke HARADA ,  Eiji TOKUNAGA ,  Sou AIZAWA ,  Keisuke SETO

IPC: C08J3/12 ,  C08J3/11 ,  C08J7/044 ,  C08J5/18

Abstract: The present invention provides non-spherical metal-coated irregularly-shaped resin particles that can improve characteristics, such as light diffusion characteristics and reflection characteristics, when used for optical applications, compared with spherical metal-coated resin particles. Specifically, the present invention provides metal-coated irregularly-shaped resin particles in which part of the surface of irregularly-shaped resin particles is coated with metal.

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：US20210347923A1

公开(公告)日：2021-11-11

申请号：US17274537

申请日：2019-08-28

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Kohei TANAKA ,  Kengo NISHIUMI ,  Ryosuke HARADA

IPC: C08F220/18 ,  C08F220/14 ,  C08J3/12

Abstract: The present invention provides vinyl-based resin particles capable of easily smoothing the surface of a thermosetting resin film when the particles are used as a pore-forming material for a thermosetting resin. Specifically, the present invention provides vinyl-based resin particles for use in making a thermosetting resin porous, the particles having a temperature of 230° C. or higher and lower than 300° C. at 10% mass loss when heated at a rate of 10° C./min in an air atmosphere, and the particles having a mass loss percentage of 85 to 100% after being heated at 350° C. for 5 hours in an air atmosphere.

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.