Title:
AQUEOUS RESIN CROSSLINKING AGENT, AQUEOUS RESIN CROSSLINKING AGENT-CONTAINING LIQUID, AND AQUEOUS RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/045022
Kind Code:
A1
Abstract:
Provided are: a carbodiimide-based aqueous resin crosslinking agent that has excellent storage stability in an aqueous medium, that also has excellent storage stability when used in combination with an aqueous resin, and that can also improve the hardness and solvent resistance of a coating film for a cured product of an aqueous resin; an aqueous resin crosslinking agent-containing liquid containing the same; and an aqueous resin composition. An aqueous resin crosslinking agent according to the present invention contains polycarbodiimide compounds (A) and (B); the polycarbodiimide compound (A) has a structure in which isocyanate groups at both ends are capped with prescribed hydrophilic organic compounds; the polycarbodiimide compound (B) has a structure in which a diisocyanate compound having one cyclohexyl ring or one benzene ring constitutes a structural unit and isocyanate groups at both ends are capped with prescribed organic compounds; and the polycarbodiimide compound (A) accounts for 5-90 parts by mass in 100 parts by mass of the total of the polycarbodiimide compounds (A) and (B).
Inventors:
TSUKAMOTO NAMI (JP)
NISHIKAWA NAOKI (JP)
NISHIKAWA NAOKI (JP)
Application Number:
PCT/JP2021/030668
Publication Date:
March 03, 2022
Filing Date:
August 20, 2021
Export Citation:
Assignee:
NISSHINBO CHEMICAL INC (JP)
International Classes:
C08G18/79; B32B27/34; C08G18/02; C08G18/28; C08L79/00; C08L101/14; C09D5/00; C09D5/02; C09D7/47; C09D11/03; C09D11/10; C09D201/00; C09J11/06; C09J201/00
Domestic Patent References:
| WO2017006950A1 | 2017-01-12 | |||
| WO2017217542A1 | 2017-12-21 | |||
| WO2020179835A1 | 2020-09-10 |
Foreign References:
| US2941956A | 1960-06-21 | |||
| JPS4733279B1 | 1972-08-24 |
Other References:
J. ORG. CHEM., vol. 28, 1963, pages 2069 - 2075
CHEMICAL REVIEW, vol. 81, no. 4, 1981, pages 619 - 621
CHEMICAL REVIEW, vol. 81, no. 4, 1981, pages 619 - 621
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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