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:
Feb. 23, 2021
Filed:
Jun. 30, 2017
Applicant:
Nanjing Tech University, Jiangsu, CN;
Inventors:
Assignee:
NANJING TECH UNIVERSITY, Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/28 (2006.01); C08J 9/00 (2006.01); C08L 81/06 (2006.01); C08G 75/20 (2016.01); C08G 75/23 (2006.01); C08L 87/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/28 (2013.01); C08G 75/20 (2013.01); C08G 75/23 (2013.01); C08J 9/00 (2013.01); C08L 81/06 (2013.01); C08J 2201/0502 (2013.01); C08J 2201/0504 (2013.01); C08J 2205/042 (2013.01); C08J 2381/06 (2013.01); C08J 2387/00 (2013.01); C08J 2471/02 (2013.01); C08L 2203/14 (2013.01);
Abstract
The present invention relates to a method for preparing nanoporous polysulfone-based polymers, including: a copolymer of a polysulfone polymer and a polar polymer is immersed into a compound swelling agent, and maintained for at least 1 minute above room temperature; the compound swelling agent is a 'solvent pair' composed of the mixture of solvent A and solvent B; the solvent A has high affinity with the polysulfone polymer; and the solvent B has high affinity with the polar polymer; the treated copolymer is taken out from the compound swelling agent and then dried to remove the solvent to obtain the nanoporous polysulfone-based polymers.