发明名称 Improved ferrous oxide yellow pigments
摘要 Yellow iron oxide pigment (I) exhibits an oil number of less than 25 and either a red content (a*)-value of greater than 4.3 CIELAB-units in the brightness of L64 (according to DIN 6174) and/or an yellow content (b*)-value of greater than 34 CIELAB-units in the brightness of L64 (according to DIN 6174), or an (a*)-value of greater than 10 CIELAB-units in Purton (according to DIN 6174) and/or a (b*)-value of greater than 45 CIELAB-units in Purton (according to DIN 6174) and a mixture ratio for the color intensity value B 1/9 (according to DIN 53235 part 1 and 2) of greater than -6.5.
申请公布号 EP1854849(A3) 申请公布日期 2009.09.02
申请号 EP20070008767 申请日期 2007.04.30
申请人 LANXESS DEUTSCHLAND GMBH & CO.KG 发明人 ROSENHAHN, CARSTEN, DR.
分类号 C09C1/24;C01G49/02 主分类号 C09C1/24
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