DE2009277A1 - Water-insoluble monoazo dyes - Google Patents
Water-insoluble monoazo dyesInfo
- Publication number
- DE2009277A1 DE2009277A1 DE19702009277 DE2009277A DE2009277A1 DE 2009277 A1 DE2009277 A1 DE 2009277A1 DE 19702009277 DE19702009277 DE 19702009277 DE 2009277 A DE2009277 A DE 2009277A DE 2009277 A1 DE2009277 A1 DE 2009277A1
- Authority
- DE
- Germany
- Prior art keywords
- dyes
- formula
- substituted
- general formula
- optionally
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
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
- C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
- C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
- C09B62/78—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring with other reactive groups
- C09B62/82—Azo dyes
- C09B62/825—Monoazo dyes
-
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
- C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
- C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
CASSELLA FARBWERKE MAINKURCASSELLA FARBWERKE MAINKUR
AKTIENGESELLSCHAFT Ref. 2882Aktiengesellschaft Ref. 2882
600OFRANKFURT(MAIN)-PECHENHEIm600OFRANKFURT (MAIN) -PECHENHEIm
Frankfurt (Main) #. den 20* Februar 1970 Dr.Eu/CzFrankfurt (Main) # . February 20, 1970 Dr.Eu/Cz
Wasserunlösliche MonoazofarbstoffeWater-insoluble monoazo dyes
Die vorliegende Erfindung, betrifft wertvolle, neue wasserunlösliche Monoazofarbstoffe der allgemeinen FormelThe present invention relates to valuable new water-insoluble ones Monoazo dyes of the general formula
R-o-oe ^-\ Λ Ro-oe ^ - \ Λ
(I I \γ HO-C K(I I \ γ HO-C K
worin R einen gegebenenfalls verzweigten und/oder substituierten Allcenylrest,wherein R is an optionally branched and / or substituted one Allcenyl radical,
X, Y ein Wassers toi:fatom, einen gegebenenfalls verzweigten und/oder substituierten Alkylrest, wobei die Alkylreste auch direkt oder über ein Beteroatom verbunden sein können, oder einen Cyelcfcalkylrest undX, Y a water toi: fatom, an optionally branched one and / or substituted alkyl radicals, where the alkyl radicals also directly or via a Beteroatom can be connected, or one Cyelcfcalkylrest and
Z ein Wasserstoffatom, eine gegebenenfalls verzweigte und/oder substituierte Alkyl—, eine gegebenenfalls substituierte Cycloalkyl-, Aralkyl- oder Aryl— gruppe bedeuten.Z is a hydrogen atom, an optionally branched one and / or substituted alkyl, one optionally substituted cycloalkyl, aralkyl or aryl group mean.
In den Resten R, X% Y und Z besitzen die Alkenyl- bzw. Alkylgruppen %in& Kettenlänge von vorzugsweise 3-6 bzw. li-4 C-Atomen» Die Älkeny1 gruppen R können durch ein Halogenatom,In the radicals R, X % Y and Z the alkenyl or alkyl groups % in & chain length of preferably 3-6 or 1-4 carbon atoms »The Älkenyl groups R can be replaced by a halogen atom,
^399:^ 399:
insbesondere durch ein Chloratom und die Alkylgruppen X und Y durch eine Hydroxygruppe substituiert sein. Substituenten der Cycloalkyl-, Aralkyl- oder Arylgruppen sind beispielsweise ein oder mehrere Halogenatome, Cyan-, Methyl- oder Alkoxygruppen.be substituted in particular by a chlorine atom and the alkyl groups X and Y by a hydroxyl group. Substituents the cycloalkyl, aralkyl or aryl groups are, for example, one or more halogen atoms, cyano, methyl or Alkoxy groups.
Als Reste R kommen vorzugsweise in Betracht:The radicals R are preferably:
Γ3 Γ 3
-CH-CH
^CH=CH2 ^ CH = CH 2
-CH-CH
CH2-CH=CH2 CH 2 -CH = CH 2
CH0-CH -CH * CH 0 -CH -CH *
CH=CH2 CH = CH 2
-CH2-CH2-CH2-Ch2-CH=CH2 -CH 2 -CH 2 -CH 2 -Ch 2 -CH = CH 2
,CH, -CH > ^-CH2-CH2-CH=CH2 , CH, -CH > ^ -CH 2 -CH 2 -CH = CH 2
„. - CHp-CH -CH". - CHp-CH -CH
CH=CH-CH,CH = CH-CH,
^ /v/n, J ^ / v / n, J
^ CHp-CH -CH d ^ CHp-CH -CH d
CH2-CH=CH2 CH 2 -CH = CH 2
-CH2-CH2-CH2-CH=CH2 -CH 2 -CH 2 -CH 2 -CH = CH 2
Die erfindungsgemäßen Farbstoffe sind in üblicher Weise erhältlich durch Kuppeln von diazotierten Aminen der allgemeinen FormelThe dyes according to the invention can be obtained in the customary manner by coupling diazotized amines of the general formula
R-O-OCv y~;\ ( RO-OCv y ~; \ (
109837/1399109837/1399
- 3 mit Pyrazolonen der allgemeinen Formel- 3 with pyrazolones of the general formula
HC-- C-CO- N''''HC-- C-CO- N '' ''
I ί τI ί τ
HO-C NHO-C N
wobei R, X,Y und Z die oben angegebene Bedeutung besitzen.where R, X, Y and Z have the meaning given above.
Die neuen Farbstoffe eignen sich sehr gut zum Färben und Bedrucken von Gebilden aus synthetischen hydrophoben Materialien, wie beispielsweise Cellulose-2. l/2-acetat, Cellulosetriacetat und insbesondere Polyestermaterialien, H z.B. Polyäthylenglykolterephthalat. Sie liefern hierauf nach den üblichen Färbe- und Druckverfahren farbstarke, klare, gelbe Färbungen und Drucke mit sehr guten Echtheiten, insbesondere sehr guter Licht- und Sublimierechtheit. The new dyes are very suitable for dyeing and printing structures made of synthetic hydrophobic materials such as cellulose-2. 1/2 acetate, cellulose triacetate and especially polyester materials, H for example polyethylene glycol terephthalate. Using the customary dyeing and printing processes, they then give strong, clear, yellow dyeings and prints with very good fastness properties, in particular very good lightfastness and sublimation fastness.
Erfindungsgemäße Farbstoffe, die erhalten werden durch Kupplung von diazotierten Amino-benzoesäureallyl- und Aminobenzoesäuremethallylestern mit l-Phenyl^-pyrazolon-!?- carbonsäureamid, liefern Färbungen und Drucke von besonders günstigen coloristischen Eigenschaften. .Dyes of the invention which are obtained by coupling of diazotized aminobenzoic acid allyl and aminobenzoic acid methallyl esters with l-phenyl ^ -pyrazolone -!? - carboxamide, provide dyeings and prints with particularly favorable coloristic properties. .
Das Färben der genannten Materialien erfolgt zweckmäßig aus wässriger Suspension in Gegenwart von Carriern zwischen etwa 80 und 110 C, in Abwesenheit von Carriern zwischen ,etwa 110 bis 140 C, sowie nach dem sogenannten Thermofixierverfahren bei etwa 170° bis 2300C. Das Bedrucken kann so durchgeführt werden, daß die bedruckte Ware in GegenwartThe dyeing of the said materials is advantageously carried out from an aqueous suspension in the presence of carriers between about 80 and 110 C, in the absence of carriers between approximately 110 to 140 C, and by the so-called thermofixing process at about 170 ° to 230 0 C. The printing can be carried out so that the printed goods are in the presence
10 9 8 3 7/139910 9 8 3 7/1399
eines Carriers bei Temperaturen zwischen etwa 80 und 100 C oder auch in Abwesenheit eines Carriers bei etwa 110 bis 1400C gedämpft, oder auch nach dem sogenannten Thermofixierverfahren bei etwa 170° bis 2300C behandelt wird.of a carrier at temperatures between about 80 and 100 C, or even in the absence of a carrier at about 110 to 140 0 C attenuated, or even after the so-called thermofixing process at about 170 ° is treated to 230 0 C.
a) 17|7 Gewichtsteile 4-Amino-benzoesäureallylester werden in 300 Gewiohtsteilen Wasser unter Zusatz von 36 Gewichtsteilen 30%iger Salzsäure gelöst und bei 0 bis +5°C mit einer Lösung von 7,7 Gewichtsteilen Natriumnitrit in 50 Gewichtsteilen Wasser diazotiert. Die filtrierte klare Diazolösung läßt man dann in eine Lösung aus 22,3 Gewichtsteilen l-Phenyl-S-pyrazolon-^-carbonsäureamid, 16,5 Gewichtsteilen Natronlauge 330Be und 18,2 Gewichtsteilen Natriumcarbonat in 400 Gewichtsteilen Wasser einlaufen und hält die Reaktionstemperatur während der Kupplung durch Zugabe von 500 Gewichtsteilen Eis bei 0 bis +5°C. Der entstandene Farbstoff wird nach beendeter Kupplung abgesaugt, mit Wasser neutral gewaschen und getrocknet. Er stellt ein rotstichig gelbes Pulver dar, das sich mit rotstichig gelber Farbe in konz. Schwefelsäure löst. Der Farbstoff schmilzt bei 220-2240C.a) 17 | 7 parts by weight of 4-amino-benzoic acid allyl ester are dissolved in 300 parts by weight of water with the addition of 36 parts by weight of 30% hydrochloric acid and diazotized at 0 to + 5 ° C. with a solution of 7.7 parts by weight of sodium nitrite in 50 parts by weight of water. The filtered clear diazo solution is then allowed to run into a solution of 22.3 parts by weight of 1-phenyl-S-pyrazolone - ^ - carboxamide, 16.5 parts by weight of sodium hydroxide solution 33 0 Be and 18.2 parts by weight of sodium carbonate in 400 parts by weight of water and the reaction temperature is maintained during the coupling by adding 500 parts by weight of ice at 0 to + 5 ° C. After the coupling has ended, the resulting dye is filtered off with suction, washed neutral with water and dried. It is a reddish yellow powder that has a reddish yellow color in conc. Sulfuric acid dissolves. The dye melts at 220-224 0 C.
109837/1 399109837/1 399
b) 1,0 Gewichtsteile des so erhaltenen feindispergierten Farbstoffs der Formelb) 1.0 part by weight of the finely dispersed material thus obtained Dye of the formula
HnC=HC-H0C-O-OC-/ · N=N - C— C-CO- NH0 H n C = HC-H 0 CO-OC- / • N = N-C-C-CO-NH 0
2 2 V/ ι 1 2 2 2 V / ι 1 2
HO-C NHO-C N
werden in 2000 Gewichtsteilen Wasser eingerührt. Es wird mit Essigsäure auf einen pH-Wert von 5 bis 6 eingestellt und mit k g Ammoniumsulfat und 3 g eines handelsüblichen Dispergiermittels auf Basis eines Naphthalinsulfönsäure-Formaldehydkondensats versetzt. In die so erhaltene Färbeflotte bringt man 100 Gewichtsteile eines Polyestergewebes auf Basis von Polyäthylenglykolterephthalat ein und färbt 1 l/2 Stunden bei 120 - 1300C. Nach anschließendem Spülen, reduktiver Nachbehandlung mit einer 0,2%igen alkalischen Natriumdithionitlösung während 15 Minuten bei 60 bis 70°C, Spülen und Trocknen, erhält man eine rotstichig gelbe Färbung mit sehr guten Echtheitseigenschaften. are stirred into 2000 parts by weight of water. It is adjusted to a pH of 5 to 6 with acetic acid and mixed with k g of ammonium sulfate and 3 g of a commercially available dispersant based on a naphthalenesulfonic acid-formaldehyde condensate. In the dyeing liquor thus obtained 100 parts by weight brings a polyester fabric based on polyethylene glycol terephthalate and stained 1 l / 2 hours at 120-130 0 C. After subsequent rinsing, reductive after-treatment with a 0.2% alkaline sodium dithionite for 15 minutes at 60 up to 70 ° C., rinsing and drying, a reddish yellow dyeing with very good fastness properties is obtained.
Die folgende Tabelle enthält weitere Farbstoffe gemäß der Erfindung, deren gelbe Färbungen und Drucke auf Polyestermaterial ebenfalls sehr gute Echtheitseigenschaften besitzen.The following table contains further dyes according to Invention whose yellow dyeings and prints on polyester material also have very good fastness properties.
109837/1399109837/1399
ROOC ^/v=ROOC ^ / v =
N = χ - CN = χ - C
ITO-CITO-C
C - COC - CO
No.' RNo. ' R.
Stellung der Estergruppe Position of the ester group
1. -CH2-CH=CH2 1. -CH 2 -CH = CH 2
-II-II
-H-H
2.2.
-CH,-CH,
3.3.
-H -LH2-LH2-CH2-LH3 -H -LH 2 -LH 2 -CH 2 -LH 3
4.-CH2-CH2-CH2-CH=CH2 h 4.-CH 2 -CH 2 -CH 2 -CH = CH 2 h
-CH2-CH2-CH3 -CH 2 -CH 2 -CH 3
5. -CH5. -CH
CH2-CH, CH=CH^CH 2 -CH, CH = CH ^
-CH3 -CH2-CH2-CH2-CH3 -CH 3 -CH 2 -CH 2 -CH 2 -CH 3
6. -CH2-CH2-CH=CH2 k 6. -CH 2 -CH 2 -CH = CH 2 k
-CIL-CIL
-CIL-CIL
-CH,-CH,
7. -CH2-CH=CH2 CH,7. -CH 2 -CH = CH 2 CH,
-C --C -
CILCIL
CII,CII,
-C --C -
CILCIL
8. -CH, 8. -CH,
-CIL-CIL
CH2-CH3 CH2-CH=CH2 CH 2 -CH 3 CH 2 -CH = CH 2
-H-H
-II-II
10. -CIL 10. -CIL
-CH,-CH,
109837/1399109837/1399
BAD ORIGINALBATH ORIGINAL
2Ü092772Ü09277
No. ΠNo. Π
Stellung der Ester— . gruppeposition the ester—. group
1 1 , -CH2-CII=CII2 4 CH2-CH2-CH2-GH- - 1 1, -CH 2 -CII = CII 2 4 CH 2 -CH 2 -CH 2 -GH- -
CIUCIU
12. -CIT 12. -CIT
-CH0-CH0-CH,. -CH0-CH -CH, d. <z. y <i 2 j -CH 0 -CH 0 -CH ,. -CH 0 -CH -CH, i.e. <z. y <i 2 j
13. -CH0-CH=Cn,13. -CH 0 -CH = Cn,
-H-H
-H--H-
-VH-VH
-H-H
• · Λ-OCH• · Λ-OCH
13.13th
-H-H
-H-H
16.-CII0- CCl=CH0 h 16.-CII 0 - CCl = CH 0 h -H-H
-CH:,-CH :,
-H-H
17. -CH2-CH=CII2 h 17. -CH 2 -CH = CII 2 h
-H-H
-CH2-CH3 -CH 2 -CH 3
18. ■18. ■
■ -N■ -N
CHCH
CH2-CH2"CH 2 -CH 2 "
-H-H
-H-H
-CH.-CH.
20.20th
-H-H
-H -CH1 -H -CH 1
21. -CH2-CH=CHCl k 21. -CH 2 -CH = CHCl k -H-H
-CH-CH
22. -CH2-CH=CH2 3 22. -CH 2 -CH = CH 2 3
-H-H
-CH.-CH.
9 8 3 7/13999 8 3 7/1399
BAD ORIGINALBATH ORIGINAL
^ Ü 0 9 2 7 7^ Ü 0 9 2 7 7
Stellung der Estergruppe Position of the ester group
23. -CH2-CII=CHCl 2k. -CH2-CH=CHg23. -CH 2 -CII = CHCl 2k. -CH 2 -CH = CHg
k k -CH kk -CH
-CH-CH
-CHg-CH3 -CHg-CH 3
-H-H
-N-N
CH2-CH2 CH 2 -CH 2
26. -CH26. -CH
CH2-CH3 CH=CH-CH,CH 2 -CH 3 CH = CH-CH,
-CH,-CH,
27. -CH3-CH=CH-CH3 -CH.27. -CH 3 -CH = CH-CH 3 -CH.
-CH3 -CH2 /CH3 -CH 3 -CH 2 / CH 3
28. —CHp-CH=CH28. —CHp-CH = CH
-CH3 Λ H / 0CH3-CH 3 Λ H / 0CH 3
29. -CH2-CH=CH2 29. -CH 2 -CH = CH 2
-H-H
<■><■>
-H -CH2-CH2-OH-H -CH 2 -CH 2 -OH
-H-H
32. -CH2-CHg-CH=CH2 h 32. -CH 2 -CHg-CH = CH 2 h
-N.-N.
CHjCHj
CH,CH,
33. -CH2-CH=CH2 33. -CH 2 -CH = CH 2
—IT—IT
-CH2-CH3 -CH 2 -CH 3
-CH,-CH,
-CH3 --CH 3 -
1 09837/13991 09837/1399
BAD ORIGINALBATH ORIGINAL
2U092772U09277
Stellung X der Estergruppe Position X of the ester group
CHCH
35. -CH0-CH=O?.,. 4 -H35. -CH 0 -CH = O?.,. 4 -H
GH-CH —GH-CH -
trtr
-CH, -CH-CH, -CH
37. -CH2-CH=GH-CH3 4 -H37. -CH 2 -CH = GH-CH 3 4 -H
-H-H
38. -CH2-CH=CH2 -CH38. -CH 2 -CH = CH 2 -CH
CH,CH,
CH.CH.
,CH,, CH,
39. -CH -H -CH2-CH2-CH2-CH3 39. -CH -H -CH 2 -CH 2 -CH 2 -CH 3
. -CH. -CH
CH2-CH3 CH2-CH=CH2 CH 2 -CH 3 CH 2 -CH = CH 2
-CH„ . CH,-CH ". CH,
-CH-CH
CH3 CH 3
> -CH2-CH=CH2 > -CH 2 -CH = CH 2
-N i-N i
0CH30CH3
-CH2 ;'.' VoCH3 -CH 2 ; '.' VoCH 3
CH,CH,
-CH0-CH ■* -CHp-CH D * CH3 Λ "CH-CH 0 -CH ■ * -CHp-CH D * CH 3 Λ "CH
-H -CHr -H -CH r
109837/1399109837/1399
No.No.
Stellung
dor Estergruppe position
dor ester group
kk. -CH2-CH=CH2 h kk. -CH 2 -CH = CH 2 h
—CHq-CHp-—CHq-CHp-
-CH-CH
-H-H
CH y CH y
-C CH CH,-C CH CH,
-H-H
-CH,-CH,
ClCl
-CH.-CH.
-CH,-CH,
48. -CH2-C^CH2 h 48. -CH 2 -C ^ CH 2 h
-H-H
-H-H
CNCN
109837/1399109837/1399
Claims (12)
Il I! ■ ^y HC-σ - GO- N ^ X
Il I! ■ ^ y
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702009277 DE2009277A1 (en) | 1970-02-27 | 1970-02-27 | Water-insoluble monoazo dyes |
NL7102057A NL7102057A (en) | 1970-02-27 | 1971-02-16 | |
BR118871A BR7101188D0 (en) | 1970-02-27 | 1971-02-25 | PROCESS FOR OBTAINING MONOAZOUS DYES INSOLUBLE IN WATER |
AU25852/71A AU2585271A (en) | 1970-02-27 | 1971-02-25 | Water-insoluble monoazo dyes |
FR7106673A FR2080812B3 (en) | 1970-02-27 | 1971-02-26 | |
AT167071A AT297881B (en) | 1970-02-27 | 1971-02-26 | Process for the production of new, water-insoluble monoazo dyes |
ES388661A ES388661A1 (en) | 1970-02-27 | 1971-02-26 | Water-insoluble monoazo dyes |
CH282971A CH548443A (en) | 1970-02-27 | 1971-02-26 | PROCESS FOR THE PREPARATION OF HYDRO-INSOLUBLE MONOAZO DYES. |
BE763559A BE763559A (en) | 1970-02-27 | 1971-02-26 | WATER-INSOLUBLE MONO-AZOIC COLORANTS AND THEIR PREPARATION |
GB2265371A GB1275028A (en) | 1970-02-27 | 1971-04-19 | Water-insoluble monoazo dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702009277 DE2009277A1 (en) | 1970-02-27 | 1970-02-27 | Water-insoluble monoazo dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2009277A1 true DE2009277A1 (en) | 1971-09-09 |
Family
ID=5763571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702009277 Pending DE2009277A1 (en) | 1970-02-27 | 1970-02-27 | Water-insoluble monoazo dyes |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT297881B (en) |
AU (1) | AU2585271A (en) |
BE (1) | BE763559A (en) |
BR (1) | BR7101188D0 (en) |
CH (1) | CH548443A (en) |
DE (1) | DE2009277A1 (en) |
ES (1) | ES388661A1 (en) |
FR (1) | FR2080812B3 (en) |
GB (1) | GB1275028A (en) |
NL (1) | NL7102057A (en) |
-
1970
- 1970-02-27 DE DE19702009277 patent/DE2009277A1/en active Pending
-
1971
- 1971-02-16 NL NL7102057A patent/NL7102057A/xx unknown
- 1971-02-25 BR BR118871A patent/BR7101188D0/en unknown
- 1971-02-25 AU AU25852/71A patent/AU2585271A/en not_active Expired
- 1971-02-26 CH CH282971A patent/CH548443A/en not_active IP Right Cessation
- 1971-02-26 FR FR7106673A patent/FR2080812B3/fr not_active Expired
- 1971-02-26 AT AT167071A patent/AT297881B/en not_active IP Right Cessation
- 1971-02-26 BE BE763559A patent/BE763559A/en unknown
- 1971-02-26 ES ES388661A patent/ES388661A1/en not_active Expired
- 1971-04-19 GB GB2265371A patent/GB1275028A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2080812B3 (en) | 1973-10-19 |
CH548443A (en) | 1974-04-30 |
AT297881B (en) | 1972-04-10 |
ES388661A1 (en) | 1974-02-16 |
BR7101188D0 (en) | 1973-03-13 |
AU2585271A (en) | 1972-08-31 |
FR2080812A7 (en) | 1971-11-19 |
GB1275028A (en) | 1972-05-24 |
NL7102057A (en) | 1971-08-31 |
BE763559A (en) | 1971-08-26 |
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