Title:
MICROBALLOON PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/065625
Kind Code:
A1
Abstract:
Provided is a production method for microballoons that: comprise polyurethane (urea) prepared using an interfacial polyaddition reaction method in a W/O emulsion; and have excellent dispersibility. Specifically, provided is a microballoon production method that is characterized by: forming a microballoon dispersion comprising polyurethane (urea), by using an interfacial polyaddition reaction method in a W/O emulsion; then treating same using a solution including a monofunctional active hydrogen compound containing only one active hydrogen group selected from amino groups and hydroxyl groups.
Inventors:
SHIMIZU YASUTOMO (JP)
KAWASAKI TAKAYOSHI (JP)
KAWASAKI TAKAYOSHI (JP)
Application Number:
PCT/JP2020/035819
Publication Date:
April 08, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
C08G18/00; B01J13/16; C08G18/28
Foreign References:
| US20150231589A1 | 2015-08-20 | |||
| JP2010125450A | 2010-06-10 | |||
| JP2008518764A | 2008-06-05 | |||
| CN1613795A | 2005-05-11 | |||
| JPH0852939A | 1996-02-27 | |||
| CN111019392A | 2020-04-17 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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