Method for producing a spherical ion exchange resin

Details Method for producing a spherical ion exchange resin Method for producing a spherical ion exchange resin

Filed on

1996-02-20

Date issued

1997-06-10

Examiner

Zitomer, Fred

Patent Class

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

SubClass

Synthetic resins

SubSubClass

Ion-exchange polymer or process of preparing

Other Related Categories

521 32, 525344, 525353, 525354, 525355, 5253591, 525379, 525380, 5262323, 5262325, 526227, C08F 836, C08F 832, C08F 436

Type

Patent

Status

active

Patent number

056376278

Description

ABSTRACT:
A method for producing a spherical crosslinked copolymer, which comprises polymerizing a monofunctional addition-polymerizable monomer and at least 0.5% by weight of a polyfunctional addition-polymerizable monomer on the basis of the total weight of monomers by suspension polymerization in an aqueous medium in the presence of a radical polymerization initiator of the following formula (b) which has a decomposition temperature for a half-life period of 10 hours within a range of from 60.degree. to 120.degree. C. and which is capable of forming at least four radical initiating points per molecule by the decomposition:

REFERENCES:
patent: 3585176 (1971-06-01), Gerritsen et al.
patent: 4283499 (1981-08-01), Howell
patent: 4560735 (1985-12-01), Nakagawa et al.
patent: 4618663 (1986-10-01), Nakagawa
patent: 5185405 (1993-02-01), Nishida
patent: 5191040 (1993-03-01), Okumura
patent: 5254650 (1993-10-01), Fukumura
Macromolecules, 1993, vol. 26, pp. 2246-2252, R.F. Drumright, et al., "Cycloalkane Perketal Initiators for Styrene Polymerization. 1. Decomposition Chemistry of 1,1-Bis(tert-Butylpmeroxy) Cyclohexane".
Macromolecules, 1993, vol. 26, pp. 2253-2258, R.E. Drumright, et al., "Cycloalkane Perketal Initiators for Styrene Polymerization. 2. Decomposition Chemistry of gem-BIS(tert-Butylperoxy) Cycloalkanes".

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