Process for the preparation of organic pigments
    1.
    发明授权
    Process for the preparation of organic pigments 失效
    制备有机颜料的方法

    公开(公告)号:US5491235A

    公开(公告)日:1996-02-13

    申请号:US239180

    申请日:1994-05-06

    IPC分类号: C09B48/00 C07D471/04

    CPC分类号: C09B48/00

    摘要: This invention relates to a process for the preparation of quinacridone pigments comprising(a) heating, at a temperature of about 80.degree. C. to about 145.degree. C., a reaction mixture comprising(i) 2,5-dianilinoterephthalic acid or a 2,5-dianilinoterephthalic acid derivative having one or more substituents in at least one aniline ring,(ii) about 2 to about 10 parts by weight, relative to component (i), of a strong acid, and(iii) at least about 0.4 mole percent, relative to component (i), of iron in the form of an iron salt;(b) drowning the reaction mixture from step (a) by adding said reaction mixture to about 3 to about 15 pads by weight, relative to component (i), of a liquid in which the pigment is substantially insoluble;(c) isolating the quinacridone pigment; and(d) optionally, conditioning the quinacridone pigment.

    摘要翻译: 本发明涉及一种制备喹吖啶酮颜料的方法,包括(a)在约80℃至约145℃的温度下加热反应混合物,该反应混合物包含(i)2,5-二苯胺基对苯二甲酸或2 在至少一个苯胺环中具有一个或多个取代基的5-二苯胺基对苯二甲酸衍生物,(ii)相对于组分(i)约2至约10重量份的强酸,和(iii)至少约0.4 相对于组分(i),铁盐形式的铁的摩尔百分数; (b)通过将所述反应混合物相对于组分(i)的重量相对于颜料基本上不溶的液体加入到步骤(a)中来淹没反应混合物; (c)分离喹吖啶酮颜料; 和(d)任选地调节喹吖啶酮颜料。

    Incorporation of pigment derivatives in quinacridone processes
    2.
    发明授权
    Incorporation of pigment derivatives in quinacridone processes 失效
    颜料衍生物在喹吖啶酮工艺中的结合

    公开(公告)号:US5713999A

    公开(公告)日:1998-02-03

    申请号:US639598

    申请日:1996-04-29

    CPC分类号: C09B48/00 C09B67/0036

    摘要: This invention relates to a process for the preparation of quinacridone pigments by (a) heating, at a temperature of about 80.degree. C. to about 145.degree. C., a reaction mixture containing (i) 2,5-dianilinoterephthalic acid, a 2,5-dianilino-3,6-dihydroterephthalic acid ester, and/or a derivative thereof, (ii) about 3 to about 15 parts by weight, per part of component (a)(i), of a dehydrating agent, and (iii) about 0.1 to about 15 percent by weight, based on component (a)(i), of one or more non-quinacridone pigments, with the proviso that if component (a)(i) is a 2,5-dianilino-3,6-dihydroterephthalic acid ester or a derivative thereof, reaction step (a) additionally comprises an oxidation step; (b) drowning the reaction mixture from step (a) by adding said reaction mixture to about 3 to about 15 parts by weight, per part of component (a)(i), of a liquid in which the quinacridone pigment is substantially insoluble; (c) isolating the quinacridone pigment; (d) optionally, conditioning the quinacridone pigment; and (e) optionally, blending the resultant pigment with one or more quinacridone derivatives.

    摘要翻译: 本发明涉及通过以下步骤制备喹吖啶酮颜料的方法:(a)在约80℃至约145℃的温度下加热反应混合物,该反应混合物含有(i)2,5-二苯胺基对苯二甲酸,2 ,5-二苯胺基-3,6-二氢对苯二甲酸酯和/或其衍生物,(ii)每份组分(a)(i)约3至约15重量份的脱水剂和( iii)基于组分(a)(i)约0.1至约15重量%的一种或多种非喹吖啶酮颜料,条件是如果组分(a)(i)是2,5-二苯胺基 - 3,6-二氢对苯二甲酸酯或其衍生物,反应步骤(a)还包括氧化步骤; (b)通过将所述反应混合物加入到每份组分(a)(i)中的约3至约15重量份的喹吖啶酮颜料基本上不溶的液体中来淹没来自步骤(a)的反应混合物; (c)分离喹吖啶酮颜料; (d)任选地调节喹吖啶酮颜料; 和(e)任选地,将所得颜料与一种或多种喹吖啶酮衍生物共混。

    Process for the preparation of organic pigments
    4.
    发明授权
    Process for the preparation of organic pigments 失效
    制备有机颜料的方法

    公开(公告)号:US5496405A

    公开(公告)日:1996-03-05

    申请号:US349868

    申请日:1994-12-06

    CPC分类号: C07D471/04 C09B48/00

    摘要: This invention relates to a process for the preparation of quinacridone pigments comprising(a) heating, at a temperature of about 80.degree. C. to about 145.degree. C., a reaction mixture comprising(i) 2,5-dianilinoterephthalic acid or a 2,5-dianilinoterephthalic acid derivative having one or more substituents in at least one aniline ring,(ii) about 2 to about 10 parts by weight, relative to component (a)(i), of a dehydrating agent, and(iii) about 0.01 to about 10 percent by weight, relative to component (a)(i), of a salt other than an iron salt;(b) drowning the reaction mixture from step (a) by adding said reaction mixture to about 3 to about 15 parts by weight, relative to component (a)(i), of a liquid in which the pigment is substantially insoluble;(c) isolating the quinacridone pigment; and(d) optionally, conditioning the quinacridone pigment.

    摘要翻译: 本发明涉及一种制备喹吖啶酮颜料的方法,包括(a)在约80℃至约145℃的温度下加热反应混合物,该反应混合物包含(i)2,5-二苯胺基对苯二甲酸或2 在至少一个苯胺环中具有一个或多个取代基的5-二苯胺基对苯二甲酸衍生物,(ii)相对于组分(a)(i)约2至约10重量份的脱水剂,和(iii)约 相对于组分(a)(i),其为除铁盐以外的盐为0.01至约10重量% (b)通过将所述反应混合物相对于组分(a)(i)添加至其中颜料基本上不溶的液体的约3至约15重量份来淹没来自步骤(a)的反应混合物; (c)分离喹吖啶酮颜料; 和(d)任选地调节喹吖啶酮颜料。