Title:
COMPOSITION AND METHOD FOR PREPARING MICROENCAPSULATED PHASE CHANGE MATERIALS
Document Type and Number:
WIPO Patent Application WO/2023/070431
Kind Code:
A1
Abstract:
The present disclosure relates to a composition and method for preparing microencapsulated phase change materials. The composition comprises oil phase a component and a water phase component; (1) the oil phase component comprises, based on the total weight of the oil phase component: -from 40 wt% to 99 wt% of phase change materials; -from 0.5 wt% to 30 wt% of aliphatic isocyanates having at least two NCO-functional groups; and -from 0.5 wt% to 30 wt% of aromatic isocyanates having at least two NCO-functional groups; (2) the water phase component comprises: -water in amount of at least 3 times the total weight of the oil phase component and -water soluble amine compounds having at least two NH-functional groups, wherein the mole ratio of NH-to NCO-is from 0.5: 1 to 3: 1. The method is a robust and efficient process, which does not require any organic solvents or surfactants.
Inventors:
HU MINBIAO (CN)
ZHANG LIANG (CN)
ZHANG JIGUANG (CN)
LI WEI (CN)
ZHANG LIANG (CN)
ZHANG JIGUANG (CN)
LI WEI (CN)
Application Number:
PCT/CN2021/127007
Publication Date:
May 04, 2023
Filing Date:
October 28, 2021
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
HU MINBIAO (CN)
ZHANG LIANG (CN)
ZHANG JIGUANG (CN)
LI WEI (CN)
HU MINBIAO (CN)
ZHANG LIANG (CN)
ZHANG JIGUANG (CN)
LI WEI (CN)
International Classes:
C08G18/32; C08G18/72; C08G18/75; C08G18/76; C08K3/26; C08L75/02; C08L91/06
Foreign References:
| CN110079279A | 2019-08-02 | |||
| US20180215983A1 | 2018-08-02 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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