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US 3,945,843 AGranted
Acrylic acid copolymer as pigment dispersant
AssigneeNalco Chemical Company
InventorsDavid W. Holty, George E. Lauterbach
Life of this patent
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Abstract
An improved method for rapidly dispersing high solids suspensions, such as calcium carbonate slurries, using a copolymer of methyl acrylate and acrylic acid alone or along with sodium polyphosphates is disclosed.
Claims8
An improved method for rapidly dispersing high solids suspensions having from 50-80% by weight of soilds which comprises adding from 0.2-1.4% by weight of a dispersant formed by the copolymerization of methyl acrylate and acrylic acid to said high solids suspensions wherein the weight ratio of methyl acrylate to acrylic acid is from 15:85 to 30:70.
Dependencies are inferred from the claim text.