Title:
URETHANE RESIN COMPOSITION AND SYNTHETIC LEATHER
Document Type and Number:
WIPO Patent Application WO/2020/116303
Kind Code:
A1
Abstract:
The present invention provides a urethane resin composition which is characterized by containing a blocked urethane prepolymer (A) that is a reaction product of a polyol (a1), a polyisocyanate (a2) and a blocking agent (a3), an amine crosslinking agent (B) and a foaming agent (C), but not containing an organic solvent. The present invention also provides a synthetic leather which uses a foam of this urethane resin composition as an adhesive layer. It is preferable that the polyol (a1) is composed of at least one compound that is selected from the group consisting of polycarbonate polyols, polyether polyols and polyester polyols. It is preferable that the polyisocyanate (a2) is composed of an aromatic polyisocyanate; and it is more preferable that the polyisocyanate (a2) is composed of diphenylmethane diisocyanate and/or toluene diisocyanate.
Inventors:
CHIJIWA HIROYUKI (JP)
Application Number:
PCT/JP2019/046533
Publication Date:
June 11, 2020
Filing Date:
November 28, 2019
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
B32B27/40; C08G18/00; C08G18/10; C08G18/32; C08G18/66; C08G18/76; C08G18/80; C08J9/06; D06N3/14; C08G101/00
Domestic Patent References:
| WO2018123290A1 | 2018-07-05 |
Foreign References:
| JP2003026759A | 2003-01-29 | |||
| JP2003073984A | 2003-03-12 | |||
| JPS60147448A | 1985-08-03 | |||
| JPH06184345A | 1994-07-05 | |||
| JP2015203061A | 2015-11-16 | |||
| JPS4825066A | 1973-04-02 | |||
| JP2006322107A | 2006-11-30 | |||
| JPH101560A | 1998-01-06 |
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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