公开(公告)号：BR7400373D0

公开(公告)日：1974-08-22

申请号：BR37374

申请日：1974-01-18

Applicant: HOECHST AG

Inventor： KUNSTMANN W ,  RIBKA J

IPC: C08K5/00 ,  C08K5/3442 ,  C08K5/45 ,  C08L1/00 ,  C08L27/00 ,  C09B35/34 ,  C09D7/00 ,  C09D7/12 ,  D06P3/00 ,  C09B35/02

公开(公告)号：BR7400302D0

公开(公告)日：1974-08-22

申请号：BR30274

申请日：1974-01-16

Applicant: HOECHST AG

Inventor： RIBKA J ,  RIEPER W

IPC: C09D7/00 ,  C09B43/00 ,  C09B67/54 ,  C09D7/12 ,  C09B67/00

Abstract: A process for the purification of azo pigments, wherein the crude pigment is stirred for some time in an aqueous alkaline suspension in a pH range from 9 to 12, preferably from 11 to 12, at temperatures between 20 DEG to 80 DEG C and subsequently the crude pigment is filtered off and washed neutral. The pigments treated by this process show a clearer and more brilliant shade and are faster to bleeding when incorporated, for example, into a thermoplastic material than the untreated pigments.

公开(公告)号：BR7400299D0

公开(公告)日：1974-08-22

申请号：BR29974

申请日：1974-01-16

Applicant: HOECHST AG

Inventor： WEINGARTEN F ,  HUNGER K ,  RIEPER W ,  RIBKA J

IPC: C09D7/00 ,  C09B29/33 ,  C09B67/10 ,  C09B67/20 ,  C09D7/12 ,  C09B67/00

Abstract: Process for the aftertreatment of the azo pigment of the formula C.I. PIGMENT ORANGE 36 wherein the crude pigment obtained after coupling is heated to temperatures from 100 DEG to 150 DEG C. in dry or wet condition in a solvent which is water-immiscible or not indefinitely water-miscible and the pigment is isolated in known manner. The pigment aftertreated in this way shows substantially improved hiding power while the same pigment prepared in the usual way has poor hiding power and can not be used in stoving lacquers.

公开(公告)号：BR7105774D0

公开(公告)日：1973-09-11

申请号：BR577471

申请日：1971-09-01

Applicant: HOECHST AG

Inventor： RIBKA J

IPC: C09B67/00

公开(公告)号：CA921024A

公开(公告)日：1973-02-13

申请号：CA121869

申请日：1971-09-01

Applicant: HOECHST AG

Inventor： RIBKA J ,  WOERFEL E ,  BETZEL C

IPC: C08K5/3447

公开(公告)号：DK143655C

公开(公告)日：1982-03-01

申请号：DK29774

申请日：1974-01-18

Applicant: HOECHST AG

Inventor： HUNGER K ,  RIBKA J ,  RIEPER W

IPC: C09D7/00 ,  C09B35/03 ,  C09B35/08 ,  C09B35/18 ,  C09B67/10 ,  C09D7/12 ,  C09B67/36

Abstract: A highly covering disazo pigment having the chemical constitution WHICH IS CHARACTERIZED BY A SPECIFIC SURFACE OF 12 - 30, PREFERABLY 15 TO 25, M2/G, A MAXIMUM OF THE GRAIN SIZE DISTRIBUTION OF BETWEEN 250 AND 500 NM AND A PROPORTION OF THESE GRAIN SIZES IN THE TOTAL DISTRIBUTION OF 35 - 65 PERCENT, PREFERABLY 45 - 60 PERCENT. This new pigment form is obtained by heating the pigment obtained after coupling with a solvent which is immiscible with water or miscible with water to a limited degree only to temperatures above 100 DEG C.

公开(公告)号：IN147741B

公开(公告)日：1980-06-14

申请号：IN1637CA1977

申请日：1977-11-21

Applicant: HOECHST AG

Inventor： ELTZ H U VON DER ,  KEIL K H ,  RIBKA J ,  UNGERMANN E ,  HUEMUELLER E ,  LEHMANN J W

IPC: D06P1/607 ,  D06P1/613 ,  D06P1/62 ,  D06P1/96 ,  D06P3/60 ,  D06P3/00

公开(公告)号：DK137194C

公开(公告)日：1978-07-03

申请号：DK496874

申请日：1974-09-20

Applicant: HOECHST AG

Inventor： HUNGER K ,  RIBKA J

IPC: C08K5/00 ,  C08K5/22 ,  C08L33/00 ,  C08L33/02 ,  C09B29/33 ,  C09D7/00 ,  C09D7/12 ,  C09B29/32

公开(公告)号：SE7713387A

公开(公告)日：1978-05-28

申请号：SE7713387

申请日：1977-11-25

Applicant: HOECHST AG

Inventor： ELTZ H-U VON DER ,  LEHMANN J W ,  UNGERMANN E ,  HUEMUELLER E ,  KEIL K-H ,  RIBKA J

IPC: D06P1/60 ,  D06P1/607 ,  D06P1/613 ,  D06P1/62 ,  D06P1/96 ,  D06P3/60

CPC classification number: D06P1/96 ,  D06P1/607 ,  D06P1/613 ,  D06P1/628 ,  D06P3/60 ,  Y10S8/904 ,  Y10S8/907 ,  Y10S8/908

公开(公告)号：DK137194B

公开(公告)日：1978-01-30

申请号：DK496874

申请日：1974-09-20

Applicant: HOECHST AG

Inventor： HUNGER K ,  RIBKA J

IPC: C08K5/00 ,  C08K5/22 ,  C08L33/00 ,  C08L33/02 ,  C09B29/33 ,  C09D7/00 ,  C09D7/12 ,  C09B29/32