A kind of self-dulling polyurethane resin and preparation method thereof

【Application Number】: CN201410467681.2

【Application Date】: 2014.09.15

【Publication Number】: CN104193946A

[Open date]: 2014.12.10

【Applicant】: Shandong Tianqing Technology Development Co., Ltd.

【Abstract】: The present invention provides a self-dulling polyurethane resin and its preparation method. , crosslinking agent, 5-7 parts of amine chain extender and other raw materials. The self-dulling polyurethane resin of the present invention introduces light-absorbing acrylic acid grafted substances, which belongs to chemical extinction, and the finished leather has a natural color extinction effect. At the same time, due to the addition of acrylic acid grafted substances, the water resistance and solvent resistance have been greatly improved.