Dispersants and compositions thereof
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United States of America Patent
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May 1, 2012
Grant Date -
May 21, 2009
app pub date -
May 1, 2006
filing date -
May 12, 2005
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Abstract
The present invention provides a dispersant of Formula (1): E-O—(Y)x-T-NR′-A-Z—W0-v, and salts thereof, wherein E is R or R—NR′-T-; R is H or C1-50-optionally substituted hydrocarbyl; R′ is a residue of an optionally substituted alkyl (meth)acrylate or (meth)acrylamide, or a residue of an epoxide, or a C1-8-optionally substituted hydrocarbyl group; Y is C2-4-alkyleneoxy; T is C2-4 alkylene; A is the residue of a dibasic acid or anhydride thereof; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof; x is from 2 to 90; and v represents an integer variable. The invention further provides a composition comprising a particulate solid, an organic medium and/or water and the dispersant.
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