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.

Date of Patent:
Dec. 22, 2020

Filed:

Jun. 15, 2017
Applicant:

Nanjing University, Nanjing, CN;

Inventors:

Fuqiang Liu, Nanjing, CN;

Yanhong Zhang, Nanjing, CN;

Li Song, Nanjing, CN;

Wei Zhao, Nanjing, CN;

Changqing Zhu, Nanjing, CN;

Chen Ling, Nanjing, CN;

Aimin Li, Nanjing, CN;

Assignee:

NANJING UNIVERSITY, Nanjing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 61/14 (2006.01); B01D 67/00 (2006.01); B01D 71/34 (2006.01); C02F 1/44 (2006.01); C02F 101/20 (2006.01); C02F 1/68 (2006.01);
U.S. Cl.
CPC ...
B01D 61/147 (2013.01); B01D 67/0016 (2013.01); B01D 67/0093 (2013.01); B01D 71/34 (2013.01); C02F 1/444 (2013.01); B01D 61/14 (2013.01); B01D 67/009 (2013.01); B01D 67/0011 (2013.01); B01D 67/0013 (2013.01); B01D 2323/18 (2013.01); B01D 2323/38 (2013.01); C02F 1/683 (2013.01); C02F 2101/20 (2013.01);
Abstract

A polyvinylidene fluoride (PVDF) casting membrane solution is shaped as a flat sheet membrane by thermally induced phase separation (TIPS), the PVDF membrane is defluorinated with an alkaline potassium permanganate solution, and then the carbon chain is extended with glycidyl methacrylate (GMA) as the graft monomer, and finally the nucleophilic substitution is carried out between melamine and GMA to produce a chelating microfiltration membrane for capturing and enriching heavy metals with high flux and high capacity.


Find Patent Forward Citations

Liu, Fuqiang. (2020). Preparation, regeneration and application of a chelating microfiltration membrane (U.S. Patent No. 10870083). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10870083

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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