CATION EXCHANGERS OR CHELATING AGENTS AND PROCESS FOR THE PREPARATION THEREOF

Title:

CATION EXCHANGERS OR CHELATING AGENTS AND PROCESS FOR THE PREPARATION THEREOF

Document Type and Number:

WIPO Patent Application WO/1998/004598

Kind Code:

A1

Abstract:

Cation exchangers or chelating agents characterized by at least comprising structural units of general formula (I) and structural units derived from a cross-linking monomer having an unsaturated hydrocarbon group [wherein A is C�3?-C�8? alkylene or C�4?-C�9? alkoxymethylene; L is SO�3??-�X?+� (wherein X?+� is a counter ion coordinating to the SO�3??-� group) or a chelate-forming functional group; and the benzene ring may be substituted with alkyl or halogenol]. The cation exchangers or chelating agents are excellent in heat resistance, scarcely causing exudation even when blended with resins by virtue of their high chemical stability, and are also satisfactory in reaction rate.

Inventors:

KUBOTA HIROHISA (JP)
YANO KATSUHIKO (JP)
WATANABE JUNYA (JP)
JYO AKINORI (JP)

Application Number:

PCT/JP1997/002623

Publication Date:

February 05, 1998

Filing Date:

July 29, 1997

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)
KUBOTA HIROHISA (JP)
YANO KATSUHIKO (JP)
WATANABE JUNYA (JP)
JYO AKINORI (JP)

International Classes:

B01J39/20; B01J45/00; C08F8/00; C08F8/34; C08F12/30; (IPC1-7): C08F8/34; B01J39/20; B01J45/00; C08F212/14; C08F212/36

Foreign References:

JPS5880307A	1983-05-14
JPS5832603A	1983-02-25
JPS5072886A	1975-06-16

Other References: