公开(公告)号：DK23175A

公开(公告)日：1975-09-22

申请号：DK23175

申请日：1975-01-24

Applicant: HOECHST AG

Inventor： TRONICH W ,  SPIETSCHKA E ,  SCHIESSLER S

IPC: C09B47/10

公开(公告)号：BR7204496D0

公开(公告)日：1973-07-10

申请号：BR449672

申请日：1972-07-07

Applicant: HOECHST AG

Inventor： SPIETSCHKA E ,  LANDLER J

IPC: C09B5/24 ,  C09B57/14 ,  C09B5/00

Abstract: 1393957 Preparing pigments HOECHST AG 7 July 1972 [10 July 1971] 31944/72 Heading C4P Pigments containing the benzothioxanthene nucleus are prepared by reacting a compound containing the 1-(2 1 -aminophenylmercapto)-naphthalene nucleus or the 1-phenylmercapto-8- aminonaphthalene nucleus in a tertiary amine with a compound yielding nitrosyl groups and heating the diazonium compound formed. Compounds yielding nitrosyl groups are nitrososulphuric acid and nitrosyl chloride and the tertiary amines used include pyridine, picoline, quinoline, isoquinoline or mixtures thereof. The starting compounds include 3-(2 1 -amino-phenylmercapto) - benzanthrone and 4 - (2 - aminophenylmercapto)-naphthalic acid anhydride.

公开(公告)号：BR7017507D0

公开(公告)日：1973-01-18

申请号：BR21750770

申请日：1970-03-17

Applicant: HOECHST AG

Inventor： SPIETSCHKA E ,  TROSTER H ,  LANDLER J

IPC: C08K5/45 ,  C09B57/14 ,  C08G53/04

公开(公告)号：BR6911967D0

公开(公告)日：1973-01-18

申请号：BR21196769

申请日：1969-08-29

Applicant: HOECHST AG

Inventor： SPIETSCHKA E ,  ISCHE F

公开(公告)号：DK122134B

公开(公告)日：1972-01-24

申请号：DK547768

申请日：1968-11-11

Applicant: HOECHST AG

Inventor： DEUCKER W ,  SPIETSCHKA E

IPC: C09B47/04

公开(公告)号：DK145501C

公开(公告)日：1983-04-25

申请号：DK699573

申请日：1973-12-21

Applicant: HOECHST AG

Inventor： SPIETSCHKA E ,  SCHIESSLER S ,  TRONICH W

IPC: C09B67/20 ,  C09B67/14 ,  C09B67/16

Abstract: A process for the preparation of highly pure organic pigments which comprises converting organic dyestuffs having various degrees of purity into dyestuff salts capable of being isolated by means of suitable acids which dissolve the impurities contained in the dyestuff, separating them from the acid, recovering the dyestuffs in pure form from the dyestuff salts by the action of water and subjecting the isolated dyestuff in aqueous organic or aqueous-organic medium to a mechanical fine dispersion. By this process the dyestuff formed by the decomposition of the dyestuff sulfate is obtained in highly pure form and can extremely well be brought into a finely dispersed form so that it can be brought into pigment form already by short-time grinding. During the preparation and isolation of the dyestuff sulfate the sulfuric acid is obtained in such a high concentration that it can be regenerated in an economical manner and any ecological charge is avoided.

公开(公告)号：DK141054B

公开(公告)日：1979-12-31

申请号：DK196075

申请日：1975-05-05

Applicant: HOECHST AG

Inventor： SCHIESSLER S ,  SPIETSCHKA E ,  ELINKMANN H G

IPC: C09B67/12 ,  C09B67/00 ,  C09B47/04

Abstract: Highly pure alpha -copper phthalocyanine is obtained when a product regenerated from alpha -copper phthalocyanine sulfate by hydrolysis with water is aftertreated in an aqueous medium containing a polar organic non-aromatic compound which is water-soluble or liquid. The aftertreated product has an especially high tinctorial strength, is very easily dispersible and has a very pure reddish-blue shade.

公开(公告)号：DK139270B

公开(公告)日：1979-01-22

申请号：DK699673

申请日：1973-12-21

Applicant: HOECHST AG

Inventor： SCHIESSLER S ,  SPIETSCHKA E ,  TRONICH W

IPC: C09B47/24 ,  C09B67/16 ,  C09B67/54 ,  C09B67/00 ,  C09B47/04

公开(公告)号：BR7701976A

公开(公告)日：1977-11-08

申请号：BR7701976

申请日：1977-03-29

Applicant: HOECHST AG

Inventor： GATTNER H ,  SPIETSCHKA E ,  TROESTER H

IPC: C08G63/00 ,  C08G63/12 ,  C08G63/68 ,  C08G63/685 ,  C08G63/78 ,  C08G63/22

Abstract: When reacting a dyestuff having hydroxy, acyloxy, carboxy or carbalkoxy groups with a polyester derived from terephthalic and/or isophthalic acid and, per mol of dicarboxylic acid, about 0.75 to 1.5 mol of a low-molecular alkanetriol with primary alcohol groups (methylol groups) or, instead of said polyester, with the corresponding starting materials or precondensates, a polyester with chemically linked dyestuff units is obtained which is useful for dyeing plastics, especially polyolefins. The dyed plastic materials are heat resistant, even when containing fluorescent dyestuff units, transparent and uniformly dyed.

公开(公告)号：DK136160B

公开(公告)日：1977-08-22

申请号：DK617873

申请日：1973-11-15

Applicant: HOECHST AG

Inventor： DEUCKER W ,  SPIETSCHKA E ,  STEIDL D

IPC: C09B47/067 ,  C09B67/00 ,  C09B47/06

Abstract: A continuous process for preparing copper phthalocyanines by caking a mixture of phthalodinitrile, and a copper salt which comprises carrying out the reaction in a continuously working, heatable, tubular vibration mill, which contains iron or steel bars in the grinding room.