Patent · US Active

Polysulfone-urethane copolymer, membranes and products incorporating same, and methods for making and using same

US11499016B2 · kind B2 · utility

0Cited by

43References

21Claims

0Family size

Assignee

Fresenius Medical Care Holdings, Inc. · US

Inventors

Geoffrey A. Russell · Ogden, US
James L. White · Columbus, US
Jiunn Teo · Pleasant View, US
Kevin Hudson · North Ogden, US
Monica P. Hall · Ogden, US
Praveen Kosaraju · New Castle, US

Key dates

Filing date	Oct 1, 2020
Grant date	Nov 15, 2022
Priority date	—
Expiry date	Aug 5, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2439/06
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A polysulfone-urethane copolymer is disclosed, which can be used as a membrane polymer, e.g., a matrix polymer, a pore forming agent, or both, while enhancing a membrane's blood compatibility. Methods are disclosed for forming the copolymer and incorporating the copolymer in membranes (e.g., spun hollow fibers, flat membranes) and other products.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.