Aqueous pigment pastes containing metallic pigments and the use thereof for producing substances for decorative aqueous coatings
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United States of America Patent
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Apr 6, 2010
Grant Date -
Jul 13, 2006
app pub date -
Aug 21, 2003
filing date -
Sep 2, 2002
priority date (Note) -
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Abstract
An aqueous pigment paste free from binders and grinding resins, comprising based on its overall amount (A) from 15 to 40% by weight of at least one metal pigment, especially an aluminum pigment, (B) from 0.45 to 0.75% by weight of at least one non-associative thickener comprising at least one methacrylate copolymer based on C.sub.1-C.sub.6 alkyl(meth)acrylate and (meth)acrylic acid, (C) from 0.1 to 0.4% by weight of at least one organic amine, (D) from 0.5 to 8% by weight of at least one nonionic surfactant, and (E) at least 50% by weight of water; its use for preparing aqueous coating materials, and processes for the preparation.
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