Title:
METHOD FOR PRODUCING CARBOXYL GROUP-CONTAINING CROSSLINKED POLYMER OR SALT THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/215381
Kind Code:
A1
Abstract:
The present invention provides a method for producing a carboxyl group-containing crosslinked polymer or a salt thereof, by which it is possible to achieve a balance between the coatability and the coating film performance of a composition that contains this crosslinked polymer or a salt thereof. This method for producing a carboxyl group-containing crosslinked polymer or a salt thereof includes a step for polymerizing monomer components including an ethylenically unsaturated carboxylic acid monomer by means of precipitation polymerization or dispersion polymerization in the presence of an exchange chain transfer mechanism type control agent. The exchange chain transfer mechanism type control agent is a polymer having a living radical polymerization active unit derived from an exchange chain transfer mechanism with one or more vinyl-based monomer polymer chains, and/or a polymer other than said polymer.
Inventors:
NAKANO TOMOKO (JP)
NISHIWAKI ATSUSHI (JP)
SAITO NAOHIKO (JP)
NISHIWAKI ATSUSHI (JP)
SAITO NAOHIKO (JP)
Application Number:
PCT/JP2021/015808
Publication Date:
October 28, 2021
Filing Date:
April 19, 2021
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
International Classes:
C08F20/06; C08F2/38
Domestic Patent References:
| WO2018180547A1 | 2018-10-04 | |||
| WO2021095739A1 | 2021-05-20 |
Foreign References:
| JP2014528014A | 2014-10-23 | |||
| JP2013512324A | 2013-04-11 | |||
| JP2008122924A | 2008-05-29 |
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