The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Jun. 09, 2023
Institute of Chemical Industry of Forest Products, Caf, Nanjing, CN;
Chen Huang, Nanjing, CN;
Fangmin Liang, Nanjing, CN;
Xuelian Zhou, Nanjing, CN;
Jinyuan Cheng, Nanjing, CN;
Yunni Zhan, Nanjing, CN;
Wencan Ma, Nanjing, CN;
Xuze Liu, Nanjing, CN;
Yongjun Deng, Nanjing, CN;
Guigan Fang, Nanjing, CN;
INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF, Nanjing, CN;
Abstract
A method for preparing a lignin adhesive and a product thereof are provided. The method includes: treating a wood fiber raw material with a mixed solution; after the treatment, adding an organic solvent to perform a solid-liquid separation while stirring, subjecting an obtained liquid to a rotary evaporation to remove the organic solvent, and washing and drying the product to obtain the lignin adhesive. The method can remove a large amount of lignin from wood fiber raw materials at a low temperature, and in the process of lignin removal, the lignin adhesive is formed by the cross-linking reaction with the solvent in the system, realizing the separation of lignin and the formation of lignin adhesive simultaneously. And the method is simple, has low cost and high yield, and can realize the large-scale preparation of lignin adhesive and the efficient removal of lignin.