公开(公告)号：US5877253A

公开(公告)日：1999-03-02

申请号：US670969

申请日：1996-06-26

申请人： Bruce L. Matta ,  Samuel A. Firman ,  George A. Smith ,  Reuben H. Grinstein

发明人： Bruce L. Matta ,  Samuel A. Firman ,  George A. Smith ,  Reuben H. Grinstein

IPC分类号： C09D5/02 ,  C09D17/00 ,  C08L31/00

CPC分类号： C09D17/004 ,  C09D5/028

摘要： A method of preparing an inorganic pigment dispersion useful in the preparation of latex paints is provided. The method comprises dispersing an inorganic pigment in an aqueous medium further comprised of a dispersing polymer, said aqueous medium being essentially free of volatile organic solvents. The dispersing polymer is derived from monomers consisting essentially of an ethylenically unsaturated aromatic monomer having an unsubstituted ethylenic group, an ethylenically unsaturated aromatic monomer having an alkyl-substituted ethylenic group, and an ethylenically unsaturated acid monomer. The amount of the ethylenically unsaturated acid monomer is sufficient to permit the dispersing polymer to associate with an inorganic pigment in an aqueous medium in a manner which disperses the inorganic pigment in the aqueous medium to form a stable aqueous dispersion of said inorganic pigment. The total amount of the ethylenically unsaturated aromatic monomers is sufficient to reduce the water sensitivity of a dried coating of a latex paint comprised of said stable aqueous dispersion of said inorganic pigment. Use of the inorganic pigment dispersions to prepare latex paints, and latex paints resulting from such use, are also provided.

摘要翻译： 提供了制备用于制备乳胶漆的无机颜料分散体的方法。 该方法包括将无机颜料分散在进一步包含分散聚合物的水性介质中，所述水性介质基本上不含挥发性有机溶剂。 分散聚合物衍生自主要由具有未取代的烯属基的烯属不饱和芳族单体，具有烷基取代的烯属基的烯属不饱和芳族单体和烯属不饱和酸单体组成的单体。 烯属不饱和酸单体的量足以允许分散聚合物以水性介质中的无机颜料与水性介质中的无机颜料缔合，以将无机颜料分散在水性介质中以形成稳定的无机颜料的水分散体。 烯键式不饱和芳族单体的总量足以降低由所述无机颜料的稳定水性分散体组成的乳胶漆的干燥涂层的水敏感性。 还提供了使用无机颜料分散体来制备乳胶漆，以及由这种使用产生的乳胶漆。