Method of dispersing inorganic materials in aqueous systems...

Details Method of dispersing inorganic materials in aqueous systems... Method of dispersing inorganic materials in aqueous systems...

C - Chemistry, Metallurgy

02

F

134/39, 134/51

C02F 5/10 (2006.01)

Patent

CA 1217692

PATENT APPLICATION of William Mathis Hann, Jean Dupre, and John Natoli for METHOD OF DISPERSING INORGANIC MATERIALS IN AQUEOUS SYSTEMS WITH LOW MOLECULAR WEIGHT ACRYLIC ACID COPOLYMERS D.N. 83-14 MSA/ets ABSTRACT OF THE DISCLOSURE A method for dispersing inorganic materials in aqueous systems using water soluble, low molecular weight copolymers of acrylic acid is provided. Copolymers having a weight average molecular weight of from about 2,000 to about 5,000 formed from about 85 to about 97 weight percent acrylic acid and from about 3 to about 15 weight percent of a hydrophobic comonomer are provided for effective dispersion of suspended particulate matter, such as clay, and for inhibiting the precipitation of common hardness ion salts in aqueous systems. The most preferred copolymers have a weight average molecular weight of about 3,000 and are formed from about 95 weight percent acrylic acid and about 5 weight percent ethyl acrylate.

451711

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