Title:
FUNCTIONAL EXPANSION AGENT HAVING CORE-SHELL STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/250181
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a core-shell expansion agent, and to a core-shell expansion agent prepared thereby. More specifically, the present invention relates to a method for preparing a core-shell expansion agent, and to a core-shell expansion agent prepared thereby, the method comprising the steps of: mixing urea and hydrogen peroxide so as to prepare a urea-hydrogen peroxide complex; adding an emulsifier to the urea-hydrogen peroxide complex so as to form a capsule inner layer; adding a thermosetting resin to the capsule inner layer so as to form a capture outer layer; and curing the capsule outer layer so as to prepare a capsule.
Inventors:
CHOI SEONG HO (KR)
KIM WOON JUNG (KR)
AN SEOK CHAN (KR)
JANG DONG WON (KR)
KIM WOON JUNG (KR)
AN SEOK CHAN (KR)
JANG DONG WON (KR)
Application Number:
PCT/KR2021/006647
Publication Date:
December 01, 2022
Filing Date:
May 28, 2021
Export Citation:
Assignee:
HANNAM UNIV INDUSTRY ACADEMY COOPERATION FOUNDATION (KR)
OKMTECH CO LTD (KR)
OKMTECH CO LTD (KR)
International Classes:
C08J9/06; B01J13/02; C08L61/00; C08L63/00; C08L75/04
Foreign References:
| KR20200050965A | 2020-05-12 | |||
| US20010031482A1 | 2001-10-18 | |||
| KR20160010055A | 2016-01-27 | |||
| KR20080084938A | 2008-09-22 | |||
| CN104529831A | 2015-04-22 |
Attorney, Agent or Firm:
PARK, Roh Choon (KR)
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