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Title:
PROCESS FOR FORMING A SYNTHETIC LEATHER
Document Type and Number:
WIPO Patent Application WO/2020/037486
Kind Code:
A1
Abstract:
A process of making a synthetic leather includes (i) first, contacting a textile with an aqueous solution containing a cationic hydroxyethylcellulose polymer to form a modified textile component; (ii) subsequently, impregnating the modified textile component with an aqueous polyurethane dispersion externally stabilized with an anionic surfactant; and (iii) precipitating the polyurethane in the modified textile component. And a synthetic leather formed by the process.

Inventors:
TAI XIANGYANG (CN)
QU ZHAOHUI (CN)
ZHAO RUIJUN (CN)
GUO YUNLONG (CN)
PANG XIAOYI (CN)
Application Number:
PCT/CN2018/101462
Publication Date:
February 27, 2020
Filing Date:
August 21, 2018
Export Citation:
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Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
ROHM & HAAS (US)
TAI XIANGYANG (CN)
QU ZHAOHUI (CN)
ZHAO RUIJUN (CN)
GUO YUNLONG (CN)
PANG XIAOYI (CN)
International Classes:
D06N3/00
Domestic Patent References:
WO2014059593A12014-04-24
WO2013056391A12013-04-25
WO2011137565A12011-11-10
WO2018037039A12018-03-01
Foreign References:
US20150299945A12015-10-22
CN104822877A2015-08-05
CN102757540A2012-10-31
CN104179030A2014-12-03
US20150299945A12015-10-22
US5539021A1996-07-23
US5688842A1997-11-18
US5959027A1999-09-28
US3412054A1968-11-19
US3294724A1966-12-27
US3410817A1968-11-12
Other References:
TH.G. SCHOLTEN.L.J. MEIJERINKH.M. SCHOFFELEERSA.M.G. BRANDS, J. APPL. POLYM. SCI., vol. 29, 1984, pages 3763 - 3782
E.P. OTOCKAR.J. ROEN.Y. HELLMANP.M. MUGLIA, MACROMOLECULES, vol. 4, 1971, pages 507
See also references of EP 3841242A4
Attorney, Agent or Firm:
WU, FENG & ZHANG (CN)
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