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发明公开
CN102089390A 金属颜料和涂料粉末，其制备方法以及用途 有权 转让

金属颜料和涂料粉末，其制备方法以及用途
摘要：
本发明涉及带有片晶状金属基底的金属效果颜料，所述金属颜料具有至少一个金属氧化物层，其中金属氧化物层表面共价键接有结构式I的聚硅氧烷：其中R1是具有1到30碳原子的饱和或不饱和的、直链或支化的烷基基团，和/或具有6到30碳原子的芳基基团、烷基芳基基团或芳基烷基基团；R2、R3、R4和R5各自独立地是具有1到6碳原子的饱和或不饱和、直链或支化的烷基基团，和/或具有6到12碳原子的芳基、烷基芳基基团和/或芳基烷基基团；x＝1到200，y＝2到30；A是(CH2)n、O、S、(OCH2CH2)m或C6R64，其中n＝0或1，m＝0到30，并且R6是H和/或具有1到6碳原子的烷基；B是(CH2)z或(OCH2CH2)w，z＝0或30，w＝0到30；以及R7和R8彼此独立地是O或具有1到6碳原子的饱和或不饱和的、直链或支化的烷基基团，和/或具有6到9碳原子的芳基基团、烷基芳基基团或芳基烷基基团，其中X是O或OH，并连接到颜料表面。本发明进一步涉及制备本发明的金属效果颜料的方法，以及它们在粉末涂料中的应用，更特别地，涉及其在由混合法生产的粉末涂料中的应用，以及涉及这些粉末涂料的应用。最后，本发明还涉及粉末涂料。
摘要（英）：

The invention relates to metal effect pigments comprising a platelet-shaped metallic substrate, the metal effect pigment comprising at least one metal oxide layer, wherein the surface of the metal oxide layer comprises covalently bound polysiloxane of formula (I) in which R1 is a saturated or unsaturated, straight-chained or branched alkyl radical having 1 to 30 carbon atoms and/or an aryl radical, alkylaryl radical or arylalkyl radical having 6 to 30 carbon atoms; R2, R3, R4 and R5 represent independently from one another saturated or unsaturated, straight-chained or branched alkyl radicals having 1 to 6 carbon atoms and/or aryl radicals, alkylaryl radicals and/or arylalkyl radicals having 6 to 12 carbon atoms; x = 1 to 200; y = 2 to 30; A is (CH2)n, O, S, (OCH2CH2)m or C6R6 4, wherein n= 0 or 1 and m = 0 to 30 and R6 = H and/or alkyl having 1 to 6 carbon atoms; B = (CH2)Z or (OCH2CH2)W, wherein z = 0 to 30 and w = 0 to 30; R7 and R8 are independently from one another O or a saturated or unsaturated, straight-chained or branched alkyl radical having 1 to 6 carbon atoms and/or an aryl radical, alkylaryl radical or arylalkyl radical having 6 to 9 carbon atoms; X = O or OH and is bound to the pigment surface. The invention further relates to a method for producing the metal effect pigments according to the invention and the use of the same in powder coatings, in particular powder coatings produced by mixing methods, as well as to the use of said powder coatings. The invention further relates to powder coatings.

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