Title:
SYNTHETIC LEATHER
Document Type and Number:
WIPO Patent Application WO/2019/235123
Kind Code:
A1
Abstract:
The present invention provides a synthetic leather which at least has a substrate (i), an adhesive layer (ii) and an epidermal layer (iii), the synthetic leather being characterized in that: the adhesive layer (ii) is formed from a urethane resin composition which contains an anionic urethane resin (S), the anionic group concentration of which is 0.25 mmol/g or less, and also contains water (T) and an anionic surfactant (U); and the epidermal layer (iii) is formed from a urethane resin composition which contains a urethane resin (A) having, as a starting material thereof, a reactive silicone (a1) having a functional group which reacts with an isocyanate group, and also contains water (B). It is preferable for the urethane resin (A) to be an anionic urethane resin which exhibits an acid value of 20mgKOH/g or less.
Inventors:
MAEDA RYO (JP)
Application Number:
PCT/JP2019/018504
Publication Date:
December 12, 2019
Filing Date:
May 09, 2019
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
D06N3/14; C08G18/08; C08G18/65
Domestic Patent References:
| WO2017179291A1 | 2017-10-19 |
Foreign References:
| JP2003335836A | 2003-11-28 | |||
| JP2009275173A | 2009-11-26 | |||
| JP2007119521A | 2007-05-17 | |||
| JP2007119749A | 2007-05-17 |
Other References:
See also references of EP 3786351A4
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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