Title:
URETHANE PREPOLYMER COMPOSITION, MOISTURE-CURABLE ADHESIVE, MULTILAYER BODY AND SYNTHETIC ARTIFICIAL LEATHER
Document Type and Number:
WIPO Patent Application WO/2023/176527
Kind Code:
A1
Abstract:
The present invention provides a urethane prepolymer composition which has excellent storage stability and is capable of forming a cured product layer that exhibits excellent flexibility, heat resistance and solvent resistance. This urethane prepolymer composition contains a urethane prepolymer (C) that is a reaction product of a polyol (A) and a polyisocyanate (B), and a trimethylolpropane adduct (D) of tolylene diisocyanate; the polyol (A) contains 5-90% by mass of a polyester polyol (A-1) that has a constituent unit derived from an aromatic dicarboxylic acid; the content of the trimethylolpropane adduct (D) of tolylene diisocyanate relative to 100 parts by mass of the urethane prepolymer (C) is 0.2-25 parts by mass; and the isocyanate group content ratio based on the sum of the urethane prepolymer (C) and the trimethylolpropane adduct (D) of tolylene diisocyanate is 1.0-6.0% by mass.
Inventors:
MATSUOKA YOICHI (JP)
SASAKI KAZUYA (JP)
SASAKI KAZUYA (JP)
Application Number:
PCT/JP2023/008158
Publication Date:
September 21, 2023
Filing Date:
March 03, 2023
Export Citation:
Assignee:
DAINICHISEIKA COLOR CHEM (JP)
International Classes:
C08G18/72; B32B27/40; C08G18/10; C08G18/65; C08G18/76; C09J175/06; D06N3/14
Foreign References:
| JP2014177574A | 2014-09-25 | |||
| JPH08165372A | 1996-06-25 | |||
| JPH03239476A | 1991-10-25 | |||
| JP2017203137A | 2017-11-16 | |||
| JPH06128550A | 1994-05-10 | |||
| JPS59154634A | 1984-09-03 |
Attorney, Agent or Firm:
KONDO Rieko et al. (JP)
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