Title:
POLYURETHANE DISPERSION, GAS BARRIER COATING MATERIAL, AND LAMINATE
Document Type and Number:
WIPO Patent Application WO/2022/158445
Kind Code:
A1
Abstract:
The polyurethane dispersion is an aqueous dispersion of a polyurethane resin. The polyurethane resin is a reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer includes a polyisocyanate component including xylylene diisocyanate and a reaction product of a C2-6 short-chain diol and an active hydrogen group-containing component including an active hydrogen group-containing compound containing a hydrophilic group. The chain extender includes ethylene diamine.
The proportion of ethylene diamine relative to the total amount of chain extender is 25 mol% or more.
Inventors:
NAKAGAWA TOSHIHIKO (JP)
FUKUDA KAZUYUKI (JP)
SUGIHARA TOMOKI (JP)
FUKUDA KAZUYUKI (JP)
SUGIHARA TOMOKI (JP)
Application Number:
PCT/JP2022/001596
Publication Date:
July 28, 2022
Filing Date:
January 18, 2022
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08G18/08; B32B27/40; C08G18/00; C08G18/12; C08G18/32; C08G18/76; C09D5/02; C09D175/12
Domestic Patent References:
| WO2010110076A1 | 2010-09-30 | |||
| WO2008035557A1 | 2008-03-27 |
Foreign References:
| JP2010229291A | 2010-10-14 | |||
| JPS5477795A | 1979-06-21 | |||
| JPS5219799A | 1977-02-15 | |||
| CN111808260A | 2020-10-23 | |||
| CN103897135A | 2014-07-02 | |||
| CN102219886A | 2011-10-19 | |||
| JP2001098047A | 2001-04-10 |
Attorney, Agent or Firm:
OKAMOTO, Hiroyuki et al. (JP)
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