Water-soluble copolymers, a process for their preparation and their use as fluidizers in suspensions of solid matter
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United States of America Patent
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Mar 31, 1992
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N/A
app pub date -
May 16, 1990
filing date -
May 17, 1989
priority date (Note) -
Expired
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Abstract
Novel water-soluble linear copolymers of N-vinylamides with monomeric addition products of amines, amino acids, amino groups containing aromatic sulfonic acids, amino alcohols of maleic anhydride as well as maleic esters of polyoxyalkyleneglycols or their monoethers. There is also described the process for the preparation of these copolymers. The copolymers are useful as fluidizers in water containing solid matter suspensions.
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