Ionene modified small polymeric beads

Details Ionene modified small polymeric beads Ionene modified small polymeric beads

1974-09-30

1977-09-06

Kight, III, John

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

20415922, 210 37R, 424 2, 424 25, 424 78, 424271, 424329, 260 332R, 260 4221, 260 803N, 260 861R, 260 861N, 260 861E, 526292, 526296, 526328, C08F 830

Patent

active

040467503

ABSTRACT:
Linear ionene polyquaternary cationic polymeric segments are bonded by means of the Menshutkin reaction (quaternization) to biocompatible, extremely small, porous particles containing halide or tertiary amine sites which are centers for attachment of the segments. The modified beads in the form of emulsions or suspensions offer a large, positively-charged surface area capable of irreversibly binding polyanions such as heparin, DNA, RNA or bile acids to remove them from solution or of reversibly binding monoanions such as penicillin, pesticides, sex attractants and the like for slow release from the suspension.

REFERENCES:
patent: 3043822 (1962-07-01), Maeder
patent: 3054782 (1962-09-01), Saxon
patent: 3644225 (1972-02-01), Quentin et al.
patent: 3689470 (1972-09-01), Shachat et al.
patent: 3808158 (1974-04-01), Bolio
patent: 3857824 (1974-12-01), Atkins

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