HYDROPHILIC MEMBRANES FOR FILTRATION

The disclosure provides porous membranes capable of removing very small particulates from a liquid composition. In certain embodiments, the porous membranes comprise poly(tetrafluoroethylene), wherein the membrane is at least partially coated with a polymer prepared from the free radical reaction of...

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Bibliographic Details
Main Authors QI, Ying, SNYDER, Lucas Benjamin, LY, Saksatha, HAMZIK, James
Format Patent
LanguageEnglish
French
Published 23.11.2023
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:The disclosure provides porous membranes capable of removing very small particulates from a liquid composition. In certain embodiments, the porous membranes comprise poly(tetrafluoroethylene), wherein the membrane is at least partially coated with a polymer prepared from the free radical reaction of ethylenically-unsaturated monomers, wherein the monomers are comprised of monomers having an amide moiety. In particular embodiments, the membranes are capable of removing, by filtration, microbial particles such as bacteria, thus rendering the resulting liquid composition essentially sterile. L'invention concerne des membranes poreuses capables d'éliminer de très petites particules d'une composition liquide. Dans certains modes de réalisation, les membranes poreuses comprennent du poly (tétrafluoroéthylène), la membrane étant au moins partiellement revêtue d'un polymère préparé à partir de la réaction radicalaire de monomères éthyléniquement insaturés, les monomères étant constitués de monomères ayant une fraction amide. Dans des modes de réalisation particuliers, les membranes sont capables d'éliminer, par filtration, des particules microbiennes telles que des bactéries, rendant ainsi la composition liquide résultante essentiellement stérile.
Bibliography:Application Number: WO2023US22763