Patents Assigned to Foshan City Nanhai Zhaofu Leather Product Co., Ltd
  • Method for manufacturing protein filling agent for leather utilizing animal hairs
    Patent number: 8002846
    Abstract: Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: August 23, 2011
    Assignees: Sichuan University, Foshan City Nanhai Zhaofu Leather Product Co., Ltd
    Inventors: Hai-Guang Huang, Hai-Xia Wang, Guo-Ying Li, Wen-Tao Liu
  • METHOD FOR MANUFACTURING PROTEIN FILLING AGENT FOR LEATHER UTILIZING ANIMAL HAIRS
    Publication number: 20090265861
    Abstract: Method for manufacturing a protein filling agent for leather utilizing animal hairs. The method includes pre-treating the animal hairs to obtain pre-treated animal hairs, wherein the pre-treating comprises soaking the animal hairs in an inorganic acid solution and a reducing agent solution. Next, the pre-treated hairs are hydrolyzed in an alkaline compound to obtain a viscous liquid and then, neutralized and dried to obtain the protein filling agent for leather.
    Type: Application
    Filed: April 29, 2009
    Publication date: October 29, 2009
    Applicants: SICHUAN UNIVERSITY, FOSHAN CITY NANHAI ZHAOFU LEATHER PRODUCT CO., LTD
    Inventors: Hai-Guang Huang, Hai-Xia Wang, Guo-Ying Li, Wen-Tao Liu