Method for thickening aqueous systems

Details Method for thickening aqueous systems Method for thickening aqueous systems

1983-08-12

1985-09-17

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524555, C08J 306

Patent

active

045421757

ABSTRACT:
What is disclosed is a method for thickening aqueous systems in the acid range at a pH below 7 by the addition of an aqueous dispersion of a synthetic polymer having a molecular weight of at least 500,000, and which is water soluble or at least colloidally dispersible at a pH below 7, said polymer comprising (A) 5-100 percent by weight of at least one monomer having at least one basic nitrogen atom (B) 0-95 percent by weight of at least one monomer which has at most limited solubility in water, and (C) 0-30 percent by weight of at least one further non-basic, water soluble comonomer.

REFERENCES:
patent: 3300429 (1967-01-01), Glavis
patent: 3356627 (1967-12-01), Scott
patent: 3432454 (1969-03-01), Hibbard
patent: 3575881 (1971-04-01), Atkins et al.
patent: 3947396 (1976-03-01), Kangas
patent: 4396734 (1983-08-01), Williams
"The Theory of Resonance", Wheland, John Wiley and Sons, Inc., New York, p. 178.
"Advanced Organic Chemistry", Fieser and Fieser, Reinhold, New York, p. 519.
"The Encyclopedia of Chemistry", Hampel, Van Nostrand Reinhold, New York p. 63.
Chem. Ber. 90, 1437-1438 (1957).

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