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. 15, 2022
Filed:
Mar. 20, 2017
Dupont Safety & Construction, Inc., Wilmington, DE (US);
DUPONT SAFETY & CONSTRUCTION, INC., Wilmington, DE (US);
Abstract
The present invention is related to a method for fabricating multilayer singlebore membranes () or multilayer multibore membranes () for ultrafiltration applications including the following method steps: (a) feeding at least a material of a substrate (), at least one material of a functional layer () and a bore fluid () to a spinneret () simultaneously; (b) forming said membranes () as a tube-like string () in a one-step process in said spinneret (); (c) thereby assigning a functionality to said functional layer () applied on at least one surface () of said substrate (). The invention is also related to a spinneret () for fabricating multilayer singlebore membranes () or multilayer multibore membranes (), using the inventive method, and to a system comprising such a spinneret ().