公开(公告)号：US12024732B2

公开(公告)日：2024-07-02

申请号：US18253861

申请日：2021-08-18

Applicant: NANJING TECH UNIVERSITY

Inventor： Chenjie Zhu ,  Hanjie Ying ,  Zhuotao Tan ,  Wei Zhuang ,  Yaping Fu ,  Yaoying Han ,  Ming Li ,  Yong Chen ,  Dong Liu ,  Huanqing Niu ,  Pengpeng Yang

IPC: C12P17/16 ,  C12N9/04 ,  C12P17/12 ,  C12P17/14

CPC classification number: C12P17/16 ,  C12N9/0006 ,  C12P17/12 ,  C12P17/14 ,  C12Y101/01001 ,  C12Y101/01255

Abstract: A method for preparing a nitrogen-containing heterocyclic compound and a derivative thereof by an enzymatic-chemical cascade method, comprising: reacting an alcohol, an amine, an alcohol dehydrogenase, a flavin molecule and a coenzyme in a solvent to obtain the nitrogen-containing heterocyclic compound and the derivative thereof; compared with the prior art, the method is a green and economical enzymatic-chemical cascade method, and is used for synthesizing nitrogen-containing heterocyclic compounds and derivatives thereof; compared with a common toxic chemical catalyst, the alcohol dehydrogenase is selected as a catalyst in the method, which has the characteristics of high substrate specificity, no pollution, high catalytic efficiency, no toxic solvents and simple post-treatment.

公开(公告)号：US11814516B2

公开(公告)日：2023-11-14

申请号：US17305327

申请日：2021-07-05

Applicant: NANJING TECH UNIVERSITY

Inventor： Chenjie Zhu ,  Hanjie Ying ,  Ming Li ,  Pingkai Ouyang ,  Jiannong Shen ,  Xinjian Xu ,  Wei Zhuang ,  Tao Shen

IPC: C08L7/00 ,  B60C1/00

CPC classification number: C08L7/00 ,  B60C1/0041

Abstract: The invention belongs to the field of rubber tire processing, and particularly discloses an application of a lignin in preparing a radial tire, wherein the lignin is capable of completely or partially replacing resorcinol, and meanwhile, the lignin is also capable of completely or partially replacing an anti-aging agent. Compared with the prior art, the resorcinol is replaced or partially replaced by a biomass-derived lignin or a modified lignin in the invention, so that requirements of cost reduction, environmental protection and no toxicity are satisfied. Especially, the lignin modified by demethylation according to the invention is capable of effectively enhancing various properties of rubber.

公开(公告)号：US12269952B2

公开(公告)日：2025-04-08

申请号：US18807918

申请日：2024-08-17

Applicant: NANJING TECH UNIVERSITY

Inventor： Chenjie Zhu ,  Haifeng Liu ,  Ming Li ,  Lei Ji ,  Zhiwei Chang ,  Yixin Feng ,  Zhuotao Tan ,  Tao Shen ,  Hanjie Ying

IPC: C08L97/00 ,  C08J3/12 ,  C08J3/22 ,  C08K5/09 ,  C08L7/00

Abstract: The present invention discloses a fully bio-based, highly filled lignin-rubber masterbatch, a method for preparing same, and use thereof. The lignin-rubber masterbatch is prepared by a method comprising: (1) reacting a lignin, acetic acid, and oleic acid in the presence of a catalyst to give a modified lignin; and (2) blending the modified lignin and a rubber, and granulating to give the lignin-rubber masterbatch. The highly filled lignin-rubber masterbatch prepared by the present invention can replace the conventional reinforcing agent carbon black and provide a better reinforcing effect and higher mechanical properties for rubber materials. The present invention can also reduce the rubber content of the rubber composite materials while retaining the mechanical properties, thus featuring cost-efficiency.