Macroporous ion exchange resins

Details Macroporous ion exchange resins Macroporous ion exchange resins

2006-08-29

2006-08-29

Pezzuto, Helen L. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

C521S025000, C521S029000, C526S303100, C526S307200, C526S309000, C526S909000, C502S402000, C210S635000, C428S304400

Reexamination Certificate

active

07098253

ABSTRACT:
Ion exchange resins are described that are hydrophilic, crosslinked (meth)acrylic copolymers. The ion exchange resins are macroporous, have a surface area of at least 50 m2/g, and an average particle size of at least 20 micrometers. Additionally, chromatographic columns containing the ion exchange resins, composite materials containing the ion exchange resin, filtration elements containing the ion exchange resin, methods of preparing the ion exchange resins, and methods of separating or purifying negatively or positively charged materials with the ion exchange resins are described.

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