Title:
ウレタン樹脂水分散体、皮革シート、及び、皮革シートの製造方法
Document Type and Number:
Japanese Patent JP6950834
Kind Code:
B2
Abstract:
The present invention provides an aqueous dispersion of a urethane resin (X) that uses a nonionic group-containing compound (a1) as a raw material, wherein the nonionic group-containing compound (a1) has a use rate of 5% by mass or less based on the total mass of raw materials constituting the urethane resin (X), the aqueous dispersion has an anionic emulsifier (Y1) content of 7 parts by mass or less with respect to 100 parts by mass of the urethane resin (X) and does not include an organic solvent during a production step. Further, the invention provides a leather sheet, wherein a coagulated product of the urethane resin aqueous dispersion is present in a fiber substrate. It is preferable that in the leather sheet, a coagulated product of the urethane resin aqueous dispersion is present in the fiber substrate.
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Inventors:
Tomohiro Tetsui
Application Number:
JP2020545198A
Publication Date:
October 13, 2021
Filing Date:
January 14, 2020
Export Citation:
Assignee:
DIC Corporation
International Classes:
C08L75/04; C08G18/00; D06N3/14
Domestic Patent References:
| JP2009096998A | ||||
| JP2017119755A | ||||
| JP2000290879A | ||||
| JP2007231468A | ||||
| JP2008231638A | ||||
| JP2015040286A |
Foreign References:
| WO2014030452A1 | ||||
| US20160376438 |
Attorney, Agent or Firm:
Shinji Ogawa
Akihiro Iwamoto
Takayuki Ohno
Akihiro Iwamoto
Takayuki Ohno