Derivatives of sulphosuccinic acid as a dispersing agent in aqueous binder-free pigment preparations
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United States of America Patent
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Nov 17, 2015
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Sep 3, 2015
app pub date -
Aug 20, 2013
filing date -
Sep 19, 2012
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Abstract
The invention relates to aqueous binder-free pigment preparations containing (A) 1.0 to 75.0 wt. % of at least one organic or inorganic white or colored pigment or a mixture of different organic and inorganic white or colored pigments, (B) 0.01 to 8.0 wt. % of at least one compound of formula (I), R being a saturated or unsaturated, linear or branched, aliphatic or alicyclic hydrocarbon group with 6 to 18 carbon atoms; n is a whole number from 0 to 10; A is an oxygen atom or a bi-functional group of formula (II), B is a hydrogen atom or a group of formula (III), bonding thereof occurring by means of the valency characterized by *, X and Y are selected from sulphonic acid groups in acidic form or their sodium, potassium and ammonium salt, and hydrogen atoms, where if X represents a sulphonic acid group or its salt then Y is a hydrogen atom, and vice versa if X represents a hydrogen atom then Y is a sulphonic acid group or its salt, and M represents a hydrogen atom or a sodium, potassium or ammonium ion, and if B is a functional group of formula (III), n stands for 0 and M stands for a sodium atom, (C) 0.01 to 12.0 wt. % of a non-ionic surfactant, and (G) is water.
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