Patent ID: 11905430
Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 6:
7. A lignosulfonate dispersion self-healing polyurea coating composition according to claim 1, wherein the lignosulfonate includes one or more of bamboo pulp lignosulfonate, wheat straw pulp lignosulfonate, reed lignosulfonate, bagasse pulp lignosulfonate, eulaliopsis binata pulp lignosulfonate, cotton pulp lignosulfonate, industrial lignin sulfonation products and industrial lignin sulfomethylation products;
the aromatic isocyanate includes one or more of toluene diisocyanate, diphenylmethane diisocyanate, polymerized diphenylmethane diisocyanate, and polymethylene polyphenyl polyisocyanate;
the aliphatic isocyanate includes one or more of isophorone diisocyanate, hexamethylene diisocyanate, and a hexamethylene diisocyanate trimer;
the amino-terminated polyether includes one or more of polyetheramine D230, polyetheramine D400, and polyetheramine D2000;
the sterically hindered amine chain extender includes one or more of a 3,5-diamino-4-chlorobenzoic acid isobutanol ester, diacetyl ethylenediamine, diacetyl m-phenylenediamine, 4,4-diacetylamino diphenylmethane and diethyltoluenediamine.