Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Patent
1989-11-17
1991-12-10
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
210490, 2105001, 21050021, 21050041, 427244, 4283044, 4283055, 521 25, 521 38, 525240, C08J 520, C08J 522, C08L 2326, C08L 2336
Patent
active
050718800
ABSTRACT:
A process for producing a filter membrane capable of simultaneous removal of metallic ions and nonionic materials from process water used in electronics industry, medical field, pharmaceutical industry and nuclear power generation.
The membrane is produced by introducing iminodiacetic acid groups to a porous membrane made from polyolefin or a copolymer of an olefin and a halogenated olefin by uv or ionizing radiation initiated graft polymerization.
REFERENCES:
patent: 4242185 (1980-12-01), McRae
patent: 4257938 (1981-03-01), Hosoi et al.
patent: 4563388 (1986-01-01), Bonk et al.
Porath, J. et al, "Metal Chelate Affinity Chromatography, A New Approach to Protein Fractionation", Nature, vol. 258, Dec. 18, 1975, pp. 598-599.
Okamoto Jiro
Saito Kyoichi
Sugo Takanobu
Japan Atomic Energy Research Institute
Schofer Joseph L.
Zitomer Fred
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