US12570937USUSPTO Grant XML

Mash filter membrane

The invention is directed to a mash filter membrane comprising an elastomeric composition that comprises more than 50 wt % of one or more elastomer, based on the total weight of polymers in the elastomeric composition.

Patent

Brief

Patent brief

Problem

How can microplastics and similar contaminants be removed from wastewater?

Novelty

Membrane filtration is reinforced by front-page matches on filter membrane.

Uses

Wastewater treatment, Industrial effluent, Water cleanup

Assignee

Heineken Supply Chain B.V.

Published

Mar 10, 2026

Inventors

Martinus Adrianus Van Nuus

Domain

Environmental systems

Plain-English summary

Problem

How can microplastics and similar contaminants be removed from wastewater?

Solution

Key novelty

Membrane filtration is reinforced by front-page matches on filter membrane.

Applications

Wastewater treatmentIndustrial effluentWater cleanup

Relevant search intents

filter membrane

Claims preview

1 . Mash filter membrane comprising an elastomeric composition that comprises 100 wt % of copolymer ethylene propylene diene monomer (EPDM), based on a total weight of polymers in the elastomeric composition, wherein the elastomeric composition is a food grade composition, wherein the elastomeric composition, before use of said membrane, has a Shore A hardness determined according to UNI ISO 7619-1, in the range of 60 to 71 ShA. 2 . Mash filter membrane in accordance with claim 1 , having a compression set determined after 72 hours at 70 C. according to ISO 815-1:2014, method A, test piece B, of less than 35%, wherein the compression set is determined before use of said membrane. 3 . Mash filter membrane in accordance with claim 1 , having a compression set determined after 72 hours at 70 C. according to ISO 815-1:2014, method A, test piece B, of less than 50% wherein the compression set is determined after 4700 brews or 90 weeks of using said membrane.

Linked approaches

Membrane filtration

Fine filtration methods for capturing microplastics and fine contaminants.

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