公开(公告)号：US10472529B2

公开(公告)日：2019-11-12

申请号：US15308414

申请日：2016-03-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Heonju Lee ,  Myoungwoon Moon ,  Wonjin Jo ,  Sangsoo Han ,  Haeshin Lee ,  Intaek Song

IPC: B29C64/165 ,  C09D11/03 ,  B33Y70/00 ,  B29C71/00 ,  B29K105/00

Abstract: The present invention relates to an ink composition containing a multifunctional adhesive suitable for a three-dimensional (3D) printer and the use thereof. The multifunctional adhesive of the present invention contains a compound with a catechol group and exhibits excellent adhesion to various materials (e.g. dry plaster powders, polymers, metals, ceramics, and composite materials). The use of the ink composition of the present invention containing the multifunctional adhesive enables the processing of various functional materials that were difficult to fabricate into a 3D structure. Therefore, it is highly likely that the ink composition of the present invention can effectively create a market for functional materials for a 3D printer and find new areas of application (e.g. automotive, medical, fashion, aviation/aerospace, construction, consumer electronics, entertainment, etc.).

公开(公告)号：US20180339451A1

公开(公告)日：2018-11-29

申请号：US15987171

申请日：2018-05-23

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Myoung-Woon Moon ,  Wonjin Jo ,  O Chang Kwon

IPC: B29C64/209 ,  B33Y30/00 ,  B29C64/227 ,  B22F3/00 ,  B29C64/245

Abstract: Provided are a nozzle for a three-dimensional (3D) printer to extrude a 3D printing material, wherein the nozzle includes a discharge port in a bottom surface of the nozzle and configured to extrude the 3D printing material, and the discharge port is eccentrically located with respect to a center of the bottom surface; and a 3D printer including a nozzle unit including the nozzle.

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.