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：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：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：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.