CH540968A - Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material - Google Patents

Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material

Info

Publication number: CH540968A
Authority: CH; Switzerland
Prior art keywords: iron oxide; precipitated; deposited; pigment; dependent
Prior art date: 1969-11-07

Application number

CH12070A

Other languages

German (de)

English (en)

Inventor

Frederick Roy Tomkinson

Original Assignee

Pfizer

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1969-11-07

Filing date

1970-01-07

Publication date

1973-08-31

1969-11-07 Priority to FR6938535A priority Critical patent/FR2030604A5/fr

1969-11-08 Priority to DE19691956283 priority patent/DE1956283C/de

1969-11-08 Priority claimed from DE19691956283 external-priority patent/DE1956283C/de

1970-01-07 Application filed by Pfizer filed Critical Pfizer

1970-01-07 Priority to CH12070A priority patent/CH540968A/de

1970-01-08 Priority to NL707000244A priority patent/NL140005C/xx

1970-01-09 Priority to BE744208A priority patent/BE744208A/fr

1973-08-31 Publication of CH540968A publication Critical patent/CH540968A/de

Links

239000001034 iron oxide pigment Substances 0.000 title description 4
UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 94
239000000049 pigment Substances 0.000 claims abstract description 49
239000000463 material Substances 0.000 claims abstract description 33
238000004040 coloring Methods 0.000 claims abstract description 31
239000002245 particle Substances 0.000 claims abstract description 17
239000006229 carbon black Substances 0.000 claims abstract description 11
NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 claims abstract description 7
239000000987 azo dye Substances 0.000 claims abstract description 5
238000000034 method Methods 0.000 claims description 20
239000000984 vat dye Substances 0.000 claims description 16
239000000975 dye Substances 0.000 claims description 12
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
238000011065 in-situ storage Methods 0.000 claims description 6
WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 claims description 6
SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 6
239000012736 aqueous medium Substances 0.000 claims description 4
238000010908 decantation Methods 0.000 claims description 2
239000001007 phthalocyanine dye Substances 0.000 claims description 2
230000001419 dependent effect Effects 0.000 claims 8
238000002360 preparation method Methods 0.000 claims 1
239000000725 suspension Substances 0.000 abstract description 27
239000000203 mixture Substances 0.000 abstract description 13
IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 abstract description 5
PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 abstract 1
150000004056 anthraquinones Chemical class 0.000 abstract 1
235000013980 iron oxide Nutrition 0.000 description 41
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
229910000859 α-Fe Inorganic materials 0.000 description 16
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
239000000243 solution Substances 0.000 description 8
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
239000002131 composite material Substances 0.000 description 6
VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical group [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 6
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
239000006185 dispersion Substances 0.000 description 5
239000007788 liquid Substances 0.000 description 5
238000004519 manufacturing process Methods 0.000 description 5
239000004753 textile Substances 0.000 description 5
JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 4
239000003086 colorant Substances 0.000 description 4
239000004567 concrete Substances 0.000 description 4
239000012954 diazonium Substances 0.000 description 4
150000001989 diazonium salts Chemical class 0.000 description 4
239000012065 filter cake Substances 0.000 description 4
239000001056 green pigment Substances 0.000 description 4
KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 4
229920005989 resin Polymers 0.000 description 4
239000011347 resin Substances 0.000 description 4
238000003756 stirring Methods 0.000 description 4
239000000126 substance Substances 0.000 description 4
239000006228 supernatant Substances 0.000 description 4
GVBHRNIWBGTNQA-UHFFFAOYSA-N 2-methoxy-4-nitroaniline Chemical compound COC1=CC([N+]([O-])=O)=CC=C1N GVBHRNIWBGTNQA-UHFFFAOYSA-N 0.000 description 3
JFGQHAHJWJBOPD-UHFFFAOYSA-N 3-hydroxy-n-phenylnaphthalene-2-carboxamide Chemical compound OC1=CC2=CC=CC=C2C=C1C(=O)NC1=CC=CC=C1 JFGQHAHJWJBOPD-UHFFFAOYSA-N 0.000 description 3
ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
230000008878 coupling Effects 0.000 description 3
238000010168 coupling process Methods 0.000 description 3
238000005859 coupling reaction Methods 0.000 description 3
238000000151 deposition Methods 0.000 description 3
239000003973 paint Substances 0.000 description 3
239000000047 product Substances 0.000 description 3
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
239000003637 basic solution Substances 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
238000009835 boiling Methods 0.000 description 2
239000001058 brown pigment Substances 0.000 description 2
239000004202 carbamide Substances 0.000 description 2
239000004568 cement Substances 0.000 description 2
239000013078 crystal Substances 0.000 description 2
230000008021 deposition Effects 0.000 description 2
239000002270 dispersing agent Substances 0.000 description 2
239000000835 fiber Substances 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
159000000014 iron salts Chemical class 0.000 description 2
239000004571 lime Substances 0.000 description 2
239000001053 orange pigment Substances 0.000 description 2
230000001590 oxidative effect Effects 0.000 description 2
LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
229920003002 synthetic resin Polymers 0.000 description 2
239000000057 synthetic resin Substances 0.000 description 2
239000000080 wetting agent Substances 0.000 description 2
PNPCRKVUWYDDST-UHFFFAOYSA-N 3-chloroaniline Chemical compound NC1=CC=CC(Cl)=C1 PNPCRKVUWYDDST-UHFFFAOYSA-N 0.000 description 1
NMGHWHCTRGZZOP-UHFFFAOYSA-N 3-chloroaniline;hydron;chloride Chemical compound Cl.NC1=CC=CC(Cl)=C1 NMGHWHCTRGZZOP-UHFFFAOYSA-N 0.000 description 1
TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 description 1
PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
-1 DIAZO Chemical class 0.000 description 1
OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
229920000877 Melamine resin Polymers 0.000 description 1
240000007817 Olea europaea Species 0.000 description 1
125000000129 anionic group Chemical group 0.000 description 1
239000011449 brick Substances 0.000 description 1
239000006103 coloring component Substances 0.000 description 1
125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
238000001035 drying Methods 0.000 description 1
239000000839 emulsion Substances 0.000 description 1
RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical class [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 description 1
230000003301 hydrolyzing effect Effects 0.000 description 1
239000002054 inoculum Substances 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
LDHBWEYLDHLIBQ-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide;hydrate Chemical compound O.[OH-].[O-2].[Fe+3] LDHBWEYLDHLIBQ-UHFFFAOYSA-M 0.000 description 1
QTWZICCBKBYHDM-UHFFFAOYSA-N leucomethylene blue Chemical compound C1=C(N(C)C)C=C2SC3=CC(N(C)C)=CC=C3NC2=C1 QTWZICCBKBYHDM-UHFFFAOYSA-N 0.000 description 1
JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
239000006069 physical mixture Substances 0.000 description 1
239000004033 plastic Substances 0.000 description 1
229920003023 plastic Polymers 0.000 description 1
239000000843 powder Substances 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
230000001376 precipitating effect Effects 0.000 description 1
150000003141 primary amines Chemical class 0.000 description 1
238000000926 separation method Methods 0.000 description 1
229910000029 sodium carbonate Inorganic materials 0.000 description 1
235000017550 sodium carbonate Nutrition 0.000 description 1
235000010288 sodium nitrite Nutrition 0.000 description 1
159000000000 sodium salts Chemical class 0.000 description 1
239000007787 solid Substances 0.000 description 1
150000003459 sulfonic acid esters Chemical class 0.000 description 1
229940051166 synthetic yellow iron oxide Drugs 0.000 description 1
239000012463 white pigment Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B41/00—Special methods of performing the coupling reaction
- C09B41/001—Special methods of performing the coupling reaction characterised by the coupling medium
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B63/00—Lakes
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Pigments, Carbon Blacks, Or Wood Stains (AREA)
Paints Or Removers (AREA)

CH12070A 1969-11-07 1970-01-07 Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material CH540968A (de)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
FR6938535A FR2030604A5 (fr)	1969-11-07	1969-11-07	Pigments d'oxyde de fer
DE19691956283 DE1956283C (de)		1969-11-08	Verfahren zur Herstellung von zusammengesetzten Eisenoxidpigmenten
CH12070A CH540968A (de)	1969-11-07	1970-01-07	Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material
NL707000244A NL140005C (nl)	1969-11-07	1970-01-08	Werkwijze voor de bereiding van samengestelde pigmenten.
BE744208A BE744208A (fr)	1969-11-07	1970-01-09	Pigments d'oxyde de fer,

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
FR6938535A FR2030604A5 (fr)	1969-11-07	1969-11-07	Pigments d'oxyde de fer
DE19691956283 DE1956283C (de)		1969-11-08	Verfahren zur Herstellung von zusammengesetzten Eisenoxidpigmenten
CH12070A CH540968A (de)	1969-11-07	1970-01-07	Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material
NL707000244A NL140005C (nl)	1969-11-07	1970-01-08	Werkwijze voor de bereiding van samengestelde pigmenten.
BE744208A BE744208A (fr)	1969-11-07	1970-01-09	Pigments d'oxyde de fer,

Publications (1)

Publication Number	Publication Date
CH540968A true CH540968A (de)	1973-08-31

Family

ID=40379607

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH12070A CH540968A (de)	1969-11-07	1970-01-07	Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material

Country Status (4)

Country	Link
BE (1)	BE744208A (fr)
CH (1)	CH540968A (fr)
FR (1)	FR2030604A5 (fr)
NL (1)	NL140005C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6420030B1 (en)	1997-10-31	2002-07-16	Toda Kogyo Corporation	Black iron-based composite particles, process for producing the same, paint and rubber or resin composition containing the same
DE69806560T2 (de) *	1997-10-31	2002-11-28	Toda Kogyo Corp	Schwarze Verbundpartikel auf der Basis von Eisen, Verfahren zu dessen Herstellung, diese enthaltende Farbe und Kautschuk oder Harz

1969
- 1969-11-07 FR FR6938535A patent/FR2030604A5/fr not_active Expired
1970
- 1970-01-07 CH CH12070A patent/CH540968A/de not_active IP Right Cessation
- 1970-01-08 NL NL707000244A patent/NL140005C/xx active
- 1970-01-09 BE BE744208A patent/BE744208A/fr unknown

Also Published As

Publication number	Publication date
NL7000244A (nl)	1971-07-12
DE1956283A1 (de)	1971-06-03
NL140005C (nl)	1974-03-15
FR2030604A5 (fr)	1970-11-13
BE744208A (fr)	1970-07-09

Legal Events

Date	Code	Title	Description
1979-11-15	PL	Patent ceased

Publication	Publication Date	Title
DE2122521A1 (de)	1971-12-02	Pigmentzusammensetzungen
DE3029581A1 (de)	1981-02-26	Wasserunloesliche salze basischer farbstoffe
DE1544341A1 (de)	1969-07-31	Kunststoffloesliche Farbstoffe und Verfahren zu deren Herstellung und Durchfuehrung des Faerbeverfahrens
CH266557A (de)	1950-01-31	Verfahren zur Herstellung eines kupferbaren Polyazofarbstoffes.
DE60001690T2 (de)	2003-10-16	Farbstoffzusammensetzung
US3619227A (en)	1971-11-09	Iron oxide pigments
CH540968A (de)	1973-08-31	Verfahren zur Herstellung eines Mischpigments von Eisenoxyd und einem anderen färbenden Material
EP0661351B1 (fr)	1999-11-10	Colorants monoazocarbazoliques
DE4417699A1 (de)	1995-11-23	Wasserunlösliche rote Monoazofarbstoffe, ihre Herstellung und ihre Verwendung
DE1956283C (de)	1973-03-22	Verfahren zur Herstellung von zusammengesetzten Eisenoxidpigmenten
DE60201658T2 (de)	2005-03-24	Verwendung von pigmentfarbstoffen zum dispersionsfärben aus wässrigen medien
DE1544345A1 (de)	1969-07-10	Verfahren zur Herstellung neuer Benzthiazolylmonoazofarbstoffe
DE933582C (de)	1955-09-29	Verfahren zur Herstellung von Polyazofarbstoffen
DE60201505T2 (de)	2006-03-09	Verwendung von pigmenten als dispersionsfarbstoffe
DE929992C (de)	1955-07-07	Verfahren zur Herstellung von gefaerbtem Polyvinylbenzal
DE1956283B (de)		Verfahren zur Herstellung von zusammengesetzten Eisenoxidpigmenten
CH621816A5 (en)	1981-02-27	Process for the improvement of the water-solubility of acidic dyestuffs
DE583036C (de)	1933-08-31	Verfahren zur Herstellung von Stilbenfarbstoffen
DE72387C (de)		Verfahren zur Darstellung von Lackfarben
DE921532C (de)	1954-12-20	Verfahren zur Herstellung von wasserunloeslichen Azofarbstoffen
DE722906C (de)	1942-07-24	Verfahren zur Herstellung von Azofarbstoffen
DE513763C (de)	1930-12-04	Verfahren zur Herstellung von zum Faerben von Acetylcellulose geeigneten Disazofarbstoffen
DE445403C (de)	1929-08-16	Verfahren zur Darstellung von Azofarbstoffen
DE145907C (fr)
DE1544343C3 (de)	1974-03-14	Benzthiazolylazonaphtholfarbstoffe, Verfahren zu deren Herstellung und Verwendung