Title:
SOFT SOLVENT-FREE FLAME-RETARDANT POLYURETHANE SYNTHETIC LEATHER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/118746
Kind Code:
A1
Abstract:
Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor. The soft solvent-free flame-retardant polyurethane synthetic leather comprises an antifouling layer, a surface layer, an intermediate layer, a bonding layer and a base cloth in sequence from top to bottom, wherein the bonding layer is prepared from component A and an isocyanate; the molar ratio of -NCO in the isocyanate to -OH in the component A is 0.85-0.93; and the component A is composed of a polyhydric alcohol, an inhibition-type catalyst, a flame retardant, a filler and a viscosity modifier in parts by weight. The polyurethane synthetic leather prepared by the present invention has daily life antifouling properties, a good durability, is soft to the touch, is strongly skin-friendly, and has a very superior flame-retardant performance, and also has excellent antifouling, scratch resistance and flexure resistance properties; the production process is simple, efficient and environmentally friendly and same can satisfy market demands.
Inventors:
YAO HEPING (CN)
SONG YUANZHOU (CN)
WANG YANWU (CN)
SUN XINRU (CN)
HUANG WANLI (CN)
WANG YIFENG (CN)
YAO KEJIAN (CN)
WANG RUILIN (CN)
WANG SEN (CN)
LUO YUNDONG (CN)
CHEN YONGZHI (CN)
SONG YUANZHOU (CN)
WANG YANWU (CN)
SUN XINRU (CN)
HUANG WANLI (CN)
WANG YIFENG (CN)
YAO KEJIAN (CN)
WANG RUILIN (CN)
WANG SEN (CN)
LUO YUNDONG (CN)
CHEN YONGZHI (CN)
Application Number:
PCT/CN2018/122060
Publication Date:
June 18, 2020
Filing Date:
December 19, 2018
Export Citation:
Assignee:
ANHUI ANLI MATERIAL TECH CO LTD (CN)
International Classes:
D06N3/14; D06N3/00
Foreign References:
| CN106381721A | 2017-02-08 | |||
| CN106381721A | 2017-02-08 | |||
| CN107268281A | 2017-10-20 | |||
| CN107268281A | 2017-10-20 | |||
| CN107385940A | 2017-11-24 | |||
| CN107385940A | 2017-11-24 | |||
| CN107503168A | 2017-12-22 | |||
| CN107503168A | 2017-12-22 | |||
| CN107974139A | 2018-05-01 | |||
| US20050100710A1 | 2005-05-12 | |||
| CN107385944A | 2017-11-24 | |||
| CN107190520A | 2017-09-22 |
Attorney, Agent or Firm:
HEFEI TIANMING PATENT OFFICE (GENERAL PARTNERSHIP) (CN)
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