公开(公告)号：US20170174523A1

公开(公告)日：2017-06-22

申请号：US15380460

申请日：2016-12-15

Applicant: Korea Institute of Science and Technology

Inventor： Munju GOH ,  Nam Ho YOU ,  Hyeonuk YEO ,  Bon-Cheol KU ,  Sang Jun YOUN ,  Jin Won YU ,  Jin JUNG

IPC: C07C29/10 ,  B01J23/34 ,  B01J23/26 ,  B01J23/36 ,  B01J23/46 ,  B01J27/13 ,  C01F7/02 ,  B01J23/22

CPC classification number: C01B32/17 ,  B01J23/22 ,  B01J23/26 ,  B01J23/34 ,  B01J23/36 ,  B01J23/466 ,  B01J27/13 ,  C01B31/0492 ,  C01B32/196 ,  C01B32/23 ,  C01B32/956 ,  C01F7/021 ,  C08J11/16 ,  C08J2300/24 ,  C08J2363/00 ,  Y02W30/705

Abstract: For depolymerization of a cured epoxy resin material, used is a composition including a transition metal salt or a transition metal oxide containing a transition metal element (metal element that belongs to Groups 3-12 in the Periodic Table). In the reaction solvent, an oxidation occurs by the medium of the transition metal element so that the cured epoxy resin material may be depolymerized and decomposed. In this manner, it is possible to carry out depolymerization of a cured epoxy resin material at a temperature of 200° C., specifically 100° C. or lower very simply and rapidly, and to reduce the processing cost and energy requirement.

公开(公告)号：US20170165876A1

公开(公告)日：2017-06-15

申请号：US15361221

申请日：2016-11-25

Applicant: Korea Institute of Science and Technology

Inventor： Munju GOH ,  Jin JUNG ,  Jin Won YU ,  Nam Ho YOU ,  Hyeonuk YEO ,  Sang Jun YOUN ,  Bon-Cheol KU

IPC: B29B17/02

CPC classification number: B29B17/02 ,  B29B2017/0293 ,  B29K2307/04 ,  B29K2701/10 ,  C08J11/10 ,  C08J11/12 ,  C08J11/16 ,  C08J2300/24 ,  Y02W30/702 ,  Y02W30/703 ,  Y02W30/705

Abstract: Disclosed are a method and an apparatus for recovering a fiber assembly by decomposing a thermosetting resin composite material, such as carbon fiber reinforced plastic (CFRP) in such a manner the fiber assembly used for the thermosetting composite material, such as CFRP, retains its original organizational shape after decomposition, and a fiber assembly recovered by the method.

公开(公告)号：US20170096540A1

公开(公告)日：2017-04-06

申请号：US15283720

申请日：2016-10-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Munju GOH ,  Jin Won YU ,  Jin JUNG ,  Sang Jun YOUN ,  Bon-Cheol KU ,  Nam Ho YOU ,  Hyeonuk YEO

IPC: C08J11/28 ,  C08J11/24 ,  C08J11/20 ,  C08J11/26

CPC classification number: C08J11/28 ,  C08J7/02 ,  C08J11/08 ,  C08J11/20 ,  C08J11/24 ,  C08J11/26 ,  C08J2300/24 ,  C08J2363/00 ,  Y02W30/701

Abstract: Provided are a composition for swelling pretreatment of a cured thermosetting resin material before decomposition, including a surfactant and an acidic material, and a method for swelling pretreatment of a cured thermosetting resin material before decomposition by using the same. When carrying out swelling pretreatment of a cured thermosetting resin material before decomposition by using the composition, it is possible to accelerate infiltration of the acidic material into the cured thermosetting resin material and swelling of the cured thermosetting resin material by virtue of the surfactant, and thus to increase the decomposition reactive surface area. Therefore, it is possible to increase reaction efficiency during the subsequent decomposition process, and to increase the decomposition ratio during the same period of time.