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    Dispersions of optical brighteners containing salt-forming solubilizing groups
    2.
    发明授权
    Dispersions of optical brighteners containing salt-forming solubilizing groups 失效
    含有盐形成溶解组的光亮剂分散体

    公开(公告)号：US3689429A

    公开(公告)日：1972-09-05

    申请号：US3689429D

    申请日：1971-04-15

    Applicant: HOECHST AG

    Inventor： DEUBEL REINHOLD ,  SCHINZEL ERICH ,  HEMMERLING VOLKER ,  ROSCH GUNTER

    IPC: C09B67/24 ,  D06L3/12

    CPC classification number: C09B67/0075 ,  C09B67/0072 ,  D06L4/621 ,  D06L4/664

    Abstract: STABLE DISPERSIONS OF OPTICAL BRIGHTENERS HAVING SALTFORMING SOLUBILIZING GROUPS ARE OBTAINED WHEN USING AN ANHYDROUS WATER-MISCIBLE DI- OR TRIHYDRIC LOWER ALIPHATIC ALCOHOL, A LOWER ALKYL OR PHENYL ETHER OR A WATER-SOLUBLE POLYETHER THEREOF AS DISPERSING AGENT AND DISPERSING MEDIIUM. THE USE OF A FURTHER NON-IONIC DISPERSING AGENT IS OPTIONAL. THESE DISPERSIONS ARE PREFERRED FOR CONTINUOUS BRIGHTENING PROCESSES BECAUSE OF THEIR EASY DOSAGE AND THE AVOIDING OF DUST AND ISSOLVING MANIPULATIONS.

    Abstract translation: 1,250,207。 荧光增白剂的分散体。 FARBWERKE HOECHST A.G. 1968年12月20日[1967年12月23日]，第60764/68号。 标题B1V。 [也在D1部分]含有羧酸和/或磺酸基团的荧光增白剂在由无水水混溶性二元或三元醇和/或醇的醚组成的液体分散介质中的稳定分散体和/或 醇的水溶性聚醚可以含有10％至90％的荧光增白剂。 荧光增白剂可以是双 - 三嗪基氨基芪二磺酸或水溶性1,3-二芳基吡唑啉的水溶性衍生物; 给出了例子。 分散体可以通过用分散介质和任选地用非离子分散剂（例如聚乙氧基化壬基苯酚）在捏合或研磨装置中处理荧光增白剂直到颗粒具有0.5-3微米的尺寸来制备。

    Process for the preparation of water-insoluble azo-dyestuffs
    3.
    发明授权
    Process for the preparation of water-insoluble azo-dyestuffs 失效
    制备水不溶性AZO-DYESTUFFS的方法

    公开(公告)号：US3607861A

    公开(公告)日：1971-09-21

    申请号：US3607861D

    申请日：1968-02-01

    Applicant: HOECHST AG

    Inventor： BRAUN OSKAR ,  DEUBEL REINHOLD

    IPC: C09B41/00 ,  C09B35/04

    CPC classification number: C09B41/001

    Abstract: Process for the preparation of a water-insoluble azo-dyestuff having particularly good qualities for printing by adding in the coupling process an auxiliary comprising a mixture consisting essentially of a primary aliphatic amine and/or a salt thereof with a low-molecular weight fatty acid, and of an aminoxide or phosphine oxide which contains a long-chained hydrocarbon radical.

    PROCESS FOR PREPARING HIGHLY CONCENTRATED AQUEOUS PRESS CAKES OF SOLIDS
    7.
    发明专利
    PROCESS FOR PREPARING HIGHLY CONCENTRATED AQUEOUS PRESS CAKES OF SOLIDS 未知

    公开(公告)号：AU580346B2

    公开(公告)日：1989-01-12

    申请号：AU4934785

    申请日：1985-11-04

    Applicant: HOECHST AG

    Inventor： WEIDE JOACHIM ,  DIETZ ERWIN ,  DEUBEL REINHOLD

    IPC: C09B67/38 ,  B01D37/02 ,  B01D37/03 ,  B01J13/00 ,  C09B67/02 ,  C09B67/42 ,  C09B67/54 ,  B01D37/00 ,  C09B67/00

    Abstract: According to the invention, addition of one or more surfactants having a cloud point in aqueous solution to an aqueous suspension of a solid gives after the isolation of the solid at a temperature above the cloud point aqueous press cakes containing a large amount of this solid. The direct processing of press cakes as obtained for example after the synthesis and isolation of dyes or pigments to give practical aqueous pastes or dispersions requires a minimum solids content in the press cakes. The minimum content is frequently not obtained when conventional methods of isolation are used, so that it is necessary to proceed via the indirect route of drying to obtain the powders and redispersing the powders. By using the process according to the invention it is possible to cut out the costly indirect route or, if desired, to reduce the expense of drying to obtain powders by an appreciable margin.

    9.
    发明专利
    未知

    公开(公告)号：BR8505533A

    公开(公告)日：1986-08-12

    申请号：BR8505533

    申请日：1985-11-05

    Applicant: HOECHST AG

    Inventor： WEIDE JOACHIM ,  DIETZ ERWIN ,  DEUBEL REINHOLD

    IPC: C09B67/20 ,  B01D37/02 ,  B01D37/03 ,  C09B41/00 ,  C09B67/54 ,  C09B67/36

    Abstract: According to the invention, addition of one or more surfactants having a cloud point in aqueous solution to an aqueous suspension of an azo disperse dye gives after the isolation of the dye at a temperature above the cloud point aqueous press cakes containing a large amount of this dye. The direct processing of press cakes as obtained for example after the synthesis and isolation of azo disperse dyes to practical dispersions for use requires a minimum dye content in the press cakes. The minimum content is frequently not obtained when conventional methods of isolation are used, so that it is necessary to proceed via the indirect route of drying to obtain powders and redispersing the powders. By using the process according to the invention it is possible to cut out the costly indirect route or, if desired, to reduce the expense of drying to obtain powders by an appreciable margin.

    10.
    发明专利
    未知

    公开(公告)号：DK509685A

    公开(公告)日：1986-05-07

    申请号：DK509685

    申请日：1985-11-05

    Applicant: HOECHST AG

    Inventor： WEIDE JOACHIM ,  DIETZ ERWIN ,  DEUBEL REINHOLD

    IPC: C09B67/38 ,  B01D37/02 ,  B01D37/03 ,  B01J13/00 ,  C09B67/02 ,  C09B67/42 ,  C09B67/54 ,  C09B

    Abstract: According to the invention, addition of one or more surfactants having a cloud point in aqueous solution to an aqueous suspension of a solid gives after the isolation of the solid at a temperature above the cloud point aqueous press cakes containing a large amount of this solid. The direct processing of press cakes as obtained for example after the synthesis and isolation of dyes or pigments to give practical aqueous pastes or dispersions requires a minimum solids content in the press cakes. The minimum content is frequently not obtained when conventional methods of isolation are used, so that it is necessary to proceed via the indirect route of drying to obtain the powders and redispersing the powders. By using the process according to the invention it is possible to cut out the costly indirect route or, if desired, to reduce the expense of drying to obtain powders by an appreciable margin.

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