Patents by Inventor Heping YAO

Heping YAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Soft solvent-free flame-retardant polyurethane synthetic leather and preparation method therefor
    Patent number: 11773302
    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.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 3, 2023
    Assignee: ANHUI ANLI MATERIAL TECHNOLOGY CO., LTD.
    Inventors: Heping Yao, Yuanzhou Song, Yanwu Wang, Wanli Huang, Yifeng Wang, Kejian Yao, Ruilin Wang, Sen Wang, Yundong Luo, Yongzhi Chen
  • SOFT SOLVENT-FREE FLAME-RETARDANT POLYURETHANE SYNTHETIC LEATHER AND PREPARATION METHOD THEREFOR
    Publication number: 20220033694
    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. Disclosed are a soft solvent-free flame-retardant polyurethane synthetic leather and a preparation method therefor.
    Type: Application
    Filed: December 19, 2018
    Publication date: February 3, 2022
    Inventors: Heping YAO, Yuanzhou SONG, Yanwu WANG, Xinru SUN, Wanli HUANG, Yifeng WANG, Kejian YAO, Ruilin WANG, Sen WANG, Yundong LUO, Yongzhi CHEN