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公开(公告)号：FI72134B
公开(公告)日：1986-12-31
申请号：FI822924
申请日：1982-08-23
Applicant: HOECHST AG
Inventor： SOMMER KARL , ARMBRECHT NORBERT
Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.
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公开(公告)号：DE3261004D1
公开(公告)日：1984-11-22
申请号：DE3261004
申请日：1982-08-20
Applicant: HOECHST AG
Inventor： SOMMER KARL DR , ARMBRECHT NORBERT
Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.
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3.发明专利
公开(公告)号：CA914670A
公开(公告)日：1972-11-14
申请号：CA914670D
Applicant: HOECHST AG
Inventor： ARMBRECHT NORBERT , SOMMER KARL
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公开(公告)号：BR9004074A
公开(公告)日：1991-09-03
申请号：BR9004074
申请日：1990-08-17
Applicant: HOECHST AG
Inventor： MAST JAN HILBERT , SCHLOESSER LOTHAR , ARMBRECHT NORBERT , SCHNAITMANN DIETER , WINTER RAINER
Abstract: Process for the bath pigmentation of leather wherein leather is dyed with very finely divided pigment dispersions in which the diameter of the pigment particles is less than 100 nm, excluding those pigment dispersions containing as dispersant a compound of the formula where Ar is phenyl or naphthyl, X is -CH2-CH2- and/or -CH2-CH(CH3)-, 0 to (m-1) of the radicals A are hydrogen and 1 to m of the radicals A are benzoyl and/or naphthoyl, 1 to m of the radicals A are -CO-CH=CH-COOM and/or -CO-CH2-CH(SO3M)-COOM, where M is a cation, R , R and R are hydrogen or alkyl of 1 to 14 carbon atoms, R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is from 1 to 150 and m is from 2 to 12.
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公开(公告)号：PT95023A
公开(公告)日：1991-04-18
申请号：PT9502390
申请日：1990-08-17
Applicant: HOECHST AG
Inventor： MAST JAN-HILBERT , SCHLOSSER LOTHAR , ARMBRECHT NORBERT , SCHNAITMANN DIETER , WINTER RAINER
Abstract: Process for the bath pigmentation of leather wherein leather is dyed with very finely divided pigment dispersions in which the diameter of the pigment particles is less than 100 nm, excluding those pigment dispersions containing as dispersant a compound of the formula where Ar is phenyl or naphthyl, X is -CH2-CH2- and/or -CH2-CH(CH3)-, 0 to (m-1) of the radicals A are hydrogen and 1 to m of the radicals A are benzoyl and/or naphthoyl, 1 to m of the radicals A are -CO-CH=CH-COOM and/or -CO-CH2-CH(SO3M)-COOM, where M is a cation, R , R and R are hydrogen or alkyl of 1 to 14 carbon atoms, R is hydrogen and/or alkyl of 1 to 9 carbon atoms, n is from 1 to 150 and m is from 2 to 12.
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Patent Agency Ranking
公开(公告)号：DE3133552A1
公开(公告)日：1983-03-17
申请号：DE3133552
申请日：1981-08-25
Applicant: HOECHST AG
Inventor： SOMMER KARL DR , ARMBRECHT NORBERT
Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.
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公开(公告)号：FI72134C
公开(公告)日：1987-04-13
申请号：FI822924
申请日：1982-08-23
Applicant: HOECHST AG
Inventor： SOMMER KARL , ARMBRECHT NORBERT
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公开(公告)号：BR8204954A
公开(公告)日：1983-08-02
申请号：BR8204954
申请日：1982-08-24
Applicant: HOECHST AG
Inventor： SOMMER KARL , ARMBRECHT NORBERT
Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.
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公开(公告)号：FI822924A0
公开(公告)日：1982-08-23
申请号：FI822924
申请日：1982-08-23
Applicant: HOECHST AG
Inventor： SOMMER KARL , ARMBRECHT NORBERT
Abstract: Water soluble trisazo dyestuffs of the formula in which A is 1-amino-8-naphthol-3,6-disulfonic acid or 1-amino-8-naphthol-4,6-disulfonic acid, or a mixture of these two compounds, and B is 1-(3'- or 4'-aminophenyl)-3-methyl-5-pyrazolone, a process for their manufacture by diazotizing component A and coupling it with 3,3'-dihydroxy-diphenylamine to give a monoazo dyestuff, reacting this dyestuff with diazotized component B to give a disazo dyestuff, and converting this dyestuff to the trisazo dyestuff by uniting it with diazotized 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, or by operating as described while, however, changing the sequence of reaction of component B and 4-nitro-4'-amino-diphenylamine-2-sulfonic acid, and use of these dyestuffs for the dyeing of leather and fur.
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公开(公告)号：DE59203324D1
公开(公告)日：1995-09-28
申请号：DE59203324
申请日：1992-01-27
Applicant: HOECHST AG
Inventor： WEINHEIMER PETER , ARMBRECHT NORBERT , SCHLOESSER LOTHAR DR
Abstract: The process for dyeing leather by the exhaust method comprises allowing a pigment dispersion and an aqueous solution of sulfur dye to act on the conventionally pretreated leather in one step or in succession. It affords a high depth of shade and a high brilliance which are not achieved by using the pigment or the sulfur dye on its own.
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