PROCESS FOR THE PRODUCTION OF SULFOALKYL-CONTAINING POLYMERS

Title:

PROCESS FOR THE PRODUCTION OF SULFOALKYL-CONTAINING POLYMERS

Document Type and Number:

WIPO Patent Application WO/2004/035660

Kind Code:

A1

Abstract:

The invention relates to a process for the production of sulfoalkyl-containing polymers useful as ion-exchange resins, more particularly a process for the production of sulfoalkyl-containing polymers, characterized by subjecting a polymer having side chains represented by the structural formula (I): (I) [wherein X is a leaving group, and n is an integer of 0 to 6] to replacement of X by acylthio, and then oxidizing the acylthio groups into sulfonic acid groups. According to the process, even the leaving groups (X) contained in the polymer matrix can be nearly quantitatively replaced by sulfonic acid groups, whereby an ion-exchange resin having high ion-exchange capacity can be obtained.

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Inventors:

HAMADA MASAHIRO (JP)
HOTTA HIROKI (JP)
IWABUCHI JUN (JP)
KAWAKAMI SHOGO (JP)
YAMASAKI TAKEMICHI (JP)
KOBAYASHI HISABUMI (JP)

Application Number:

PCT/JP2003/013085

Publication Date:

April 29, 2004

Filing Date:

October 10, 2003

Export Citation:

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Assignee:

NIPPON KAYAKU KK (JP)
SANKO CHEMICAL CO LTD (JP)
HAMADA MASAHIRO (JP)
HOTTA HIROKI (JP)
IWABUCHI JUN (JP)
KAWAKAMI SHOGO (JP)
YAMASAKI TAKEMICHI (JP)
KOBAYASHI HISABUMI (JP)

International Classes:

B01D67/00; B01D71/66; B01D71/68; B01D71/82; B01J39/18; C08G75/20; C08G75/23; H01B1/12; (IPC1-7): C08G75/23; B01J39/18

Foreign References:

JP2002110174A	2002-04-12
US2892852A	1959-06-30

Other References: