MULTI-LAYER SYNTHETIC LEATHER PRODUCTS

WIPO Patent Application WO/2024/011580

A1

Disclosed is a multi-layer synthetic leather product comprising (A) a silicone based top layer; and (B) a polyurethane based skin layer which is formed with a polyurethane dispersion formulation, wherein the polyurethane dispersion formulation is formed by blending water, at least one chain extender and an isocyanate-terminated prepolymer which is the reaction product of a mixture comprising: at least one isocyanate compound, at least one polyol compound, and from 2.5 wt%to 15 wt%, based on the weight of the prepolymer, of at least one allyl polyether monoalcohol. Due to the formation of chemical bonds between the top layer and the skin layer, the synthetic leather product exhibits superior detachment resistance, mechanical strength, easy to clean capability and hand feeling.

WO/2016/025423	MOISTURE VAPOR TRANSMISSION THERMOPLASTIC POLYURETHANE WITH HIGH HEAT RESISTANCE
JP2000178336	LENS MATERIAL FOR FIT TO EYE AND LENS FOR FIT TO EYE

WANG NAN (CN)
CHEN YUSHENG (CN)
SHEN GUODONG (CN)
HUANG XIAOLIN (CN)

PCT/CN2022/105944

January 18, 2024

July 15, 2022

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DOW GLOBAL TECHNOLOGIES LLC (US)
DOW SILICONES CORP (US)
WANG NAN (CN)
CHEN YUSHENG (CN)
SHEN GUODONG (CN)
HUANG XIAOLIN (CN)

C08G18/48; B32B5/00; B32B27/40; C08G18/12; C08L83/04; D06N3/14

WO2017012239A1

2017-01-26

CN111231473A	2020-06-05
CN113631616A	2021-11-09
CN107428944A	2017-12-01
US4408020A	1983-10-04
US20060247403A1	2006-11-02
AU2018426345A1	2021-01-21
CN110128614A	2019-08-16

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)

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