Cofused resins and their preparation

Details Cofused resins and their preparation Cofused resins and their preparation

1971-02-08

1976-02-17

Kight, III, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25M, 260 25H, 260 25HA, 260 25HB, 260 304R, 260 328R, 260 332R, 260 334R, 260 342, 260 928A, 260 96R, C08F 614, C08F 624

Patent

active

039391353

ABSTRACT:
Aqueous suspensions of discrete particles of polymer, for instance polyvinyl latices, are heated with solvents which are at least partially water-miscible, particularly certain shortchain ketones, until the polymer is agglomerated to the desired degree. Various water-soluble inorganic metal salts, especially alkali metal and alkaline earth metal halides and sulfates, may also be added to facilitate the agglomeration. Novel macromolecular resins of high absorptivity are thus produced, comprising the fine particles of polymer cofused in a reticulated structure, the degree of cofusion being controlled at will by the process conditions selected.

REFERENCES:
patent: 2806256 (1957-09-01), Smith-Johannsen
patent: 3020268 (1962-02-01), Schutze
patent: 3055297 (1962-09-01), Leeds
patent: 3111506 (1963-11-01), Roussillon et al.
patent: 3179646 (1965-04-01), Ingraham
patent: 3183201 (1965-05-01), Shimeha et al.
patent: 3245970 (1966-04-01), Drayer
patent: 3255132 (1966-06-01), Reinecke

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