Purification of polymer dispersions with adsorbent carbon partic

Details Purification of polymer dispersions with adsorbent carbon partic Purification of polymer dispersions with adsorbent carbon partic

1974-04-03

1976-03-16

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296TA, 260 296H, 260 296R, 260 785E, 260 861E, 260 8073, 260 808, 423461, C08L 3302, C08L 3308, C08L 3310

Patent

active

039445135

ABSTRACT:
Aqueous dispersions of particulate vinyl polymers, such as acrylic polymers, particularly those prepared by emulsion polymerization, which undesirably may be caused to coagulate or agglomerate to form larger particles when subjected to purification procedures, and which contain contaminants in the aqueous and polymeric phases, are purified and deodorized by contact with adsorbent carbon particles, such as petroleum coke, at a temperature above the T.sub.g of the dispersed polymer particles.

REFERENCES:
patent: 2810714 (1957-10-01), Price
patent: 3502638 (1970-03-01), Ratzsch et al.
patent: 3505263 (1970-04-01), Roth

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