发明名称 |
High purity color and well dispersible red iron oxide pigments with high stability against milling |
摘要 |
<p>Ferric oxide red pigment (A) (having an a* value measured according to CIELAB units according to DIN 6174, which is coated for 15 minutes in an Olbrich shaker for 26.5-30 (preferably 26.5-28.5) with a paint film in Olbrich shaker with an increase in dispersion for 15-120 minutes and exhibiting a chromacity of delta h ab* according to DIN 6174 of less than 1.1 (preferably less than 0.8)) is new. Independent claims are also included for: (1) ferric oxide red pigment (Bayferrox 110M) of 0.5-4 (preferably 0.7-2) units, higher a*-units, measured according to CIELAB units in accordance with DIN 6174 with a coating time of 15 minutes in the Olbrich Shaker and with a paint film in the Olbrich Shaker with an increase of the dispersion time of 15-120 minutes, a multicolored chromacity according with DIN 6174 of less than 1.1 (preferably less than 0.8) or a tenacity according to DIN 6174 of less than 0.8 (preferably 0.6) or less than 1.8 (preferably less than 1.3); (2) and the preparation of (A).</p> |
申请公布号 |
EP1605023(B1) |
申请公布日期 |
2012.07.11 |
申请号 |
EP20050010096 |
申请日期 |
2005.05.10 |
申请人 |
LANXESS DEUTSCHLAND GMBH |
发明人 |
ROSENHAHN, CARSTEN, DR.;BUROW, WILFRIED, DR.;SCHNEIDER, VOLKER, DR. |
分类号 |
C09C1/24;C01G49/06 |
主分类号 |
C09C1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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