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:
Oct. 10, 2023
Filed:
Aug. 28, 2020
Shanghai Ceo Environmental Protection Technology Co., Ltd., Shanghai, CN;
Tongji University, Shanghai, CN;
Fengting Li, Shanghai, CN;
Yufei Lu, Shanghai, CN;
Bingru Zhang, Shanghai, CN;
Xianwei Qu, Shanghai, CN;
Chunjiang Li, Shanghai, CN;
Shanghai CEO Environmental Protection Technology Co., Ltd., Shanghai, CN;
Tongji University, Shanghai, CN;
Abstract
A corrosion inhibitor for a soft water circulation heating and cooling system, wherein the corrosion inhibitor is pentapentanol core hyperbranched macromolecule functionalized by isothiourea and carboxyl, which has a chemical formula of CHO{COC(CH)[CHOCOCHCH(COOH)SC(NH)NH]}. The corrosion inhibitor provided by the present invention is non-phosphorus, biodegradable, non-toxic, low in cost and has good corrosion inhibition effect. Moreover, it has excellent corrosion inhibition performance for circulating heating and cooling systems using soft water as the water source, and can significantly improve the reuse rate of circulating water. The present invention also provides a preparation method of the corrosion inhibitor, which is simple, easy to obtain raw materials and easy to industrialize.