Spherical porous cross-linked copolymers of chloromethylstyrene

Details Spherical porous cross-linked copolymers of chloromethylstyrene Spherical porous cross-linked copolymers of chloromethylstyrene

1980-01-28

1982-11-09

Hamrock, William F.

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

Synthetic resins

Ion-exchange polymer or process of preparing

521 38, 526201, C08F 244

Patent

active

043585469

ABSTRACT:
A porous cross-linked copolymer of chloromethylstyrene and divinylbenzene having a divinylbenzene unit represented by Xm of from about 9.0 percent by mole to about 17.0 percent by mole based on the total moles of monomer units; a content of active chlorine atom of from about 5.25-0.08 Xm mmole/g-dry resin to about 6.43-0.10 Xm mmole/g-dry resin; a water regain of from about 0.10 ml/g-dry resin to about 1.20 ml/g-dry resin; and a total volume of micro pores having a diameter of from about 500 angstroms to about 3000 angstroms of from 0.10 ml/g-dry resin to about 1.20 ml/g-dry resin; and a porous iminodiacetic acid type chelating resin having a Xm of from about 9.0 percent by mole to about 17.0 percent by mole based on the total moles of all monomer units; an ion exchange capacity of from about 5.35-12.0 Xm/(205.6-1.30 Xm) meq/g-dry resin to about 7.93-18.1 Xm/(247.1-2.0 Xm) meq/g-dry resin; a water regain of from about 0.60 ml/g-dry resin to about 2.20 ml/g-dry resin; and the total volume of micro pores having a diameter of from about 500 angstroms to about 3000 angstroms of from about 0.05 ml/g-dry resin to about 0.60 ml/g-dry resin.

REFERENCES:
patent: 3337480 (1967-08-01), Small
patent: 3791999 (1974-02-01), Fuchiwaki et al.
patent: 3843566 (1974-10-01), Barrett
patent: 4104209 (1978-08-01), Mikec et al.
patent: 4256840 (1981-03-01), Meitzner et al.

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