Cross-linked, water-swellable polymer microgels

Details Cross-linked, water-swellable polymer microgels Cross-linked, water-swellable polymer microgels

1977-09-26

1979-10-23

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

128284, 166275, 252 85R, 252 855R, 252 855D, 260 296H, 260 296PM, 260 296RW, 526303, 526306, 525336, C08L 3302, C08L 3326, C08L 4100

Patent

active

041720660

ABSTRACT:
Discrete, spheroidal microgels of a water-swollen or water-swellable, cross-linked polymer such as cross-linked polyacrylamide are particularly useful as thickening agents for aqueous dispersions to be subjected to high shear and as agents for reducing the permeability of porous structures.

REFERENCES:
patent: RE26934 (1970-08-01), Mosbach
patent: 2205355 (1940-06-01), Grimm et al.
patent: 2982749 (1961-05-01), Friedrich et al.
patent: 3104231 (1963-09-01), Fitch
patent: 3247171 (1966-04-01), Walker et al.
patent: 3252904 (1966-05-01), Carpenter
patent: 3284393 (1966-11-01), Vanderhof et al.
patent: 3539535 (1970-11-01), Wisner
patent: 4059552 (1977-11-01), Zwelove et al.

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