公开(公告)号：US10066125B2

公开(公告)日：2018-09-04

申请号：US15156644

申请日：2016-05-17

Applicant: Korea Institute of Science and Technology

Inventor： Yong Chae Jung ,  Eun Sil Lee ,  Daun Lim ,  Cheol-Min Yang ,  Jaesang Yu ,  Seong Yun Kim ,  Junyeon Hwang ,  Hun-su Lee ,  Min Park

IPC: C09D197/00 ,  C08K3/04 ,  C08L29/04

Abstract: Disclosed is an ultrafine fiber including lignin, a carrier polymer and a carbon material. The ultrafine fiber, which includes lignin, can exhibit the properties of lignin such as antibacterial property, biodegradability, etc. Accordingly, it can be used widely in medical materials such as nanofiber, nanofiber web, nanofiber sheet, etc. for wound healing of the skin's dermal layer. Also, the ultrafine fiber can be used in sheath of electric cables because it contains a carbon material and has superior conductivity. In addition, because the ultrafine fiber can hold a large quantity of water, it can be used in various fields including sanitary pads for women, diapers for babies and adults, etc.

公开(公告)号：US09745452B2

公开(公告)日：2017-08-29

申请号：US15099114

申请日：2016-04-14

Applicant: Korea Institute of Science and Technology

Inventor： Junyeon Hwang ,  Seung Gyu Park ,  Jin Seong Lim ,  Wonjin Jo ,  Heon Ju Lee ,  Myoung-Woon Moon ,  Bon-Cheol Ku

IPC: C08K9/00 ,  C08K9/10 ,  B29C47/00

CPC classification number: C08K9/10 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0057 ,  B29C47/92 ,  B29C2947/92704 ,  B29C2947/92904 ,  B33Y70/00 ,  C08K3/041 ,  C08K9/02 ,  C08K2003/085 ,  C08K2201/011 ,  C08L67/04

Abstract: The present invention relates to a 3D printer polymer filament improving strength of a polymer resin and providing durability by using graphene coated metal nanoparticles and carbon nanotubes, and expressing a function of the graphene coated metal nanoparticles and the carbon nanotubes as a filler, and a manufacturing method thereof. Accordingly, according to the present invention, the 3D printer polymer filament and the manufacturing method includes mixing the graphene coated metal nanoparticles, the carbon nanotubes, and the polymer, using the manufactured mixture to form a filament through extrusion, and forming a 3D printed article by using the filament, thereby improving the strength and the durability by using the graphene coated metal nanoparticles and the carbon nanotubes.

公开(公告)号：US11938538B2

公开(公告)日：2024-03-26

申请号：US17897896

申请日：2022-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Junyeon Hwang ,  Siwon Yu ,  Byeongguk Kim

IPC: B22F10/50 ,  B22F10/28 ,  B22F12/41 ,  B29C64/153 ,  B29C64/268 ,  B29K77/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

CPC classification number: B22F10/50 ,  B22F10/28 ,  B22F12/41 ,  B29C64/153 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B22F2301/052 ,  B29K2077/00

Abstract: Provided is a method of producing a metal-plastic multi-layered hybrid structure by using laser three-dimensional (3D) printing, the method including printing a metal structure on a substrate by using a first laser, patterning an upper surface of the metal structure by using the first laser, printing a polymer bonding layer on the patterned metal structure by using the first laser, and printing a polymer structure on the polymer bonding layer by using a second laser having a wavelength longer than a wavelength of the first laser, wherein the printing of the polymer bonding layer includes forming an intermediate phase at an interface between the metal structure and the polymer bonding layer. A layered structure produced using the above method may include the intermediate phase having the effect of an oxygen inclusion connecting a metal and a polymer.

公开(公告)号：US09549952B2

公开(公告)日：2017-01-24

申请号：US14887000

申请日：2015-10-19

Applicant: Korea Institute of Science and Technology

Inventor： Yong Chae Jung ,  Eun Sil Lee ,  Hye Jin Yoo ,  Sang Hyun Lee ,  Junyeon Hwang ,  Cheol-Min Yang ,  Min Park

IPC: A61K9/16 ,  A61K33/44 ,  H01L51/00 ,  A61K9/50

CPC classification number: A61K33/44 ,  A61K9/1652 ,  A61K9/5031 ,  H01L51/0048

Abstract: Disclosed are lignin microcapsules including lignin as a shell material and at least one of oil and a carbonaceous material as a core material. The lignin microcapsules may be formed by carried out polymerization in an oil-in-water emulsion including lignin, oil and water and further including a carbonaceous material. Since lignin has a phenol structure, the microcapsules including lignin may be formed to have antibacterial property. Thus, the lignin microcapsules may be used widely in various fields, such as additives for composite materials.

Abstract translation: 公开了包括作为壳材料的木质素和作为核心材料的油和碳质材料中的至少一种的木质素微胶囊。 木质素微胶囊可以通过在包含木质素，油和水的水包油乳液中进行聚合并进一步包含含碳材料来形成。 由于木质素具有酚结构，因此可以形成包含木质素的微胶囊以具有抗菌性。 因此，木质素微胶囊可以广泛用于各种领域，例如复合材料的添加剂。