Phosphoric acid monoesters useful for surface treatment of pigments for waterborne coatings
First Claim
1. A process for surface treating organic pigments comprising applying to the surface of an organic pigment(a) 0.5 to 15 percent by weight, relative to the pigment, of a phosphoric acid monoester having the formula ##STR4## wherein R is(i) a saturated C5 -C40 aliphatic group or a saturated C5 -C40 aliphatic group in which one or more aliphatic carbon atoms is substituted with halogen, C1 -C6 alkyl, C1 -C6 alkoxy, a C6 -C10 aromatic hydrocarbon group or a C6 -C10 aromatic hydrocarbon group substituted with a C1 -C12 alkyl group, or --COORa (wherein Ra is hydrogen, metal, ammonium, C1 -C6 alkyl, or C6 -C10 aryl), optionally wherein one or more non-adjacent aliphatic backbone carbon atoms are replaced with O, S, or NRb (wherein Rb is C1 -C6 alkyl or C6 -C10 aryl), or(ii) an unsaturated C5 -C40 aliphatic group or an unsaturated C5 -C40 aliphatic group in which one or more aliphatic carbon atoms is substituted with halogen, C1 -C6 alkyl, C1 -C6 alkoxy, a C6 -C10 aromatic hydrocarbon group or a C6 -C10 aromatic hydrocarbon group substituted with one or more C1 -C6 alkyl groups, or --COORa (wherein Ra is hydrogen, metal, ammonium, C1 -C6 alkyl, or C6 -C10 aryl), optionally wherein one or more non-adjacent aliphatic backbone carbon atoms are replaced with O, S, or NRb (wherein Rb is C1 -C6 alkyl or C6 -C10 aryl), andM is hydrogen, metal, or ammonium;
- in admixture with(b) 0 to 10 percent by weight, relative to the phosphoric acid monoester, of a process additive.
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Accused Products
Abstract
This invention relates to a process for surface treating organic pigments by applying to the surface of an organic pigment
(a) about 0.5 to about 15 percent by weight, relative to the pigment, of a phosphoric acid monoester having the formula ##STR1## wherein R is an optionally substituted saturated or unsaturated C5 -C40 aliphatic group, and M is hydrogen, metal, or ammonium;
optionally in admixture with
(b) 0 to about 10 percent by weight, relative to the phosphoric acid monoester, of a process additive.
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Citations
9 Claims
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1. A process for surface treating organic pigments comprising applying to the surface of an organic pigment
(a) 0.5 to 15 percent by weight, relative to the pigment, of a phosphoric acid monoester having the formula ##STR4## wherein R is (i) a saturated C5 -C40 aliphatic group or a saturated C5 -C40 aliphatic group in which one or more aliphatic carbon atoms is substituted with halogen, C1 -C6 alkyl, C1 -C6 alkoxy, a C6 -C10 aromatic hydrocarbon group or a C6 -C10 aromatic hydrocarbon group substituted with a C1 -C12 alkyl group, or --COORa (wherein Ra is hydrogen, metal, ammonium, C1 -C6 alkyl, or C6 -C10 aryl), optionally wherein one or more non-adjacent aliphatic backbone carbon atoms are replaced with O, S, or NRb (wherein Rb is C1 -C6 alkyl or C6 -C10 aryl), or (ii) an unsaturated C5 -C40 aliphatic group or an unsaturated C5 -C40 aliphatic group in which one or more aliphatic carbon atoms is substituted with halogen, C1 -C6 alkyl, C1 -C6 alkoxy, a C6 -C10 aromatic hydrocarbon group or a C6 -C10 aromatic hydrocarbon group substituted with one or more C1 -C6 alkyl groups, or --COORa (wherein Ra is hydrogen, metal, ammonium, C1 -C6 alkyl, or C6 -C10 aryl), optionally wherein one or more non-adjacent aliphatic backbone carbon atoms are replaced with O, S, or NRb (wherein Rb is C1 -C6 alkyl or C6 -C10 aryl), and M is hydrogen, metal, or ammonium; -
in admixture with (b) 0 to 10 percent by weight, relative to the phosphoric acid monoester, of a process additive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification
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- Resources
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Current AssigneeSun Chemical Corporation
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Original AssigneeBayer Corporation (Bayer AG)
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InventorsJohnson, Mark W.
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Primary Examiner(s)LUSIGNAN, MICHAEL R
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Application NumberUS08/356,940Time in Patent Office334 DaysField of Search406/493, 106/504, 427/212US Class Current427/212CPC Class CodesC09B 67/0009 containing organic acid der...C09D 5/028 Pigments; Filters
