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:
Jan. 06, 2026
Filed:
Dec. 08, 2020
Solventum Intellectual Properties Company, Maplewood, MN (US);
Clinton P. Waller, Jr., White Bear Lake, MN (US);
Michelle M. Mok, St. Paul, MN (US);
Lucas D. Mcintosh, Minneapolis, MN (US);
Timothy M. Gillard, St. Paul, MN (US);
Carl A. Laskowski, Minneapolis, MN (US);
Hyacinth L. Lechuga, St. Paul, MN (US);
SOLVENTUM INTELLECTUAL PROPERTIES COMPANY, Maplewood, MN (US);
Abstract
The present disclosure provides an article including an isoporous membrane disposed on a porous substrate. The isoporous membrane includes a triblock copolymer or a pentablock copolymer. The isoporous membrane has a thickness and is isoporous throughout its thickness. A method of making an article is also provided, which does not require a solvent exchange process. The method includes depositing a composition on a porous substrate, thereby forming a fdm, and removing at least a portion of the solvent from the film, thereby forming an isoporous membrane having numerous pores. The composition contains a solvent and solids including a triblock copolymer or a pentablock copolymer. The article advantageously can be hydrophilic and provides sharp molecular weight cut-offs and high flux.