Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K5/00—Use of organic ingredients
  • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
  • C08K5/0041—Optical brightening agents, organic pigments
• • 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
  • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
  • C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
  • C09B1/54—Amino-hydroxy-anthraquinones; Ethers and esters thereof etherified
• • 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
  • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
  • C09B1/50—Amino-hydroxy-anthraquinones; Ethers and esters thereof
  • C09B1/54—Amino-hydroxy-anthraquinones; Ethers and esters thereof etherified
  • C09B1/542—Anthraquinones with aliphatic, cycloaliphatic, araliphatic or aromatic ether groups
• • 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
  • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
  • C09B1/56—Mercapto-anthraquinones
• • 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
  • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
  • C09B1/56—Mercapto-anthraquinones
  • C09B1/58—Mercapto-anthraquinones with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals
• • G—PHYSICS
  • G02—OPTICS
  • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
  • G02B5/00—Optical elements other than lenses
  • G02B5/20—Filters
  • G02B5/22—Absorbing filters

Definitions

• the present invention relates to novel anthraquinone dyes, to a process for the preparation thereof and to the use thereof in a method of producing mass-coloured plastics or polymeric colour particles.
• Dyes especially dyes of the anthraquinone series, are known for mass-colouring plastics.
• US Patent 5 367 039 1 ,4,5,8-tetrasubstituted anthraquinones having (meth)acryloyl groups which can be copolymerised with vinyl monomers and are thus suitable for the production of coloured vinyl polymers.
• thermostable dyes that produce colorations having a high tinctorial strength and exhibiting light fastness, especially high-temperature light fastness, and that have good all-round fastness properties.
• the present invention accordingly relates to a compound of formula I
• R 1 and R 3 are each independently of the other -NHR 5 , -NHSO2R5, -NHCOR 5 , -OR 6 or -SR 7 ,
• R 2 and ⁇ are each independently of the other -OR ⁇ or -SR 7 , with the proviso that not all of the substituents R 1 to R* are -SR 7 ,
• R 5 is hydrogen, alkyl, aryl, aralkyl or a group of formula -(C n H 2n X)rn-H wherein X is -O-, -S-, -SO 2 -, -NH-, -NR ⁇ -, -CONH- or -CONR ⁇ - and Re is alkyl or aryl, n is a number from 2 to 6 and m is a number from 1 to 10,
• R ⁇ is aryl or heteroaryl and R 7 is alkyl, aryl, heteroaryl or a group of formula -(C n H 2n X) m -H wherein X is -O-, -S-, -SO 2 -, -NH-, -NR 8 -, -CONH- or -CONR ⁇ - and R 8 is alkyl or aryl.
• R*, and R 3 may be identical or different; preferably, R t and R 3 are identical.
• R 2 and Rj may be identical or different, but are preferably identical.
• Any radical denoting alkyl may be a straight-chain or branched alkyl radical that may be substituted by one or more hydroxy groups, amino groups or halogen atoms.
• alkyl groups include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec- butyl, tert-butyl, n-pentyl, isopentyl, neopentyl, n-hexyl, n-heptyl, n-octyl, isooctyl, n-decyl and n-dodecyl.
• Substituted alkyl groups include, for example, 2-hydroxyethyl, 2-hydroxypropyl, 4-hydroxy- butyl, 2-aminoethyl, 2-aminopropyl, 4-aminobutyl, 2-chloroethyl, 2-bromoethyl and 4-chloro- butyl.
• the aryl radicals designated R 5 to R ⁇ have preferably from 5 to 24, especially from 6 to 14, carbon atoms and may be substituted, for example, by hydroxy, C 1 -C 4 alkyl, CrC ⁇ lkoxy, C ⁇ -C hydroxyalkyl, halogen or by the radical -NH-CO-R wherein R is amino, d-C 4 alkyl, unsubstituted pflenyl or phenyl substituted by hydroxy, C ⁇ -C 4 alkyl, C C ⁇ lkoxy, C C 4 - hydroxyalkyl or by halogen.
• Suitable aryl groups include phenyl, tolyl, mesityl, isityl, 2-hydroxyphenyl, 4-hydroxyphenyl, 2-chlorophenyl, 4-chlorophenyl, 2,6-dichlorophenyl, 2-aminophenyl, 3-aminophenyl, 4-aminophenyl, 4-methoxyphenyl, 4-ethoxyphenyl, 4-acetylaminophenyl, naphthyl and phenanthryl.
• Aralkyl groups as R 5 have preferably from 6 to 30, especially from 7 to 12, carbon atoms and may be unsubstituted or substituted by one or more C C alkyl groups, d-C 4 alkoxy groups, halogen atoms or -NH-CO-R radicals wherein R is amino, C C 4 alkyl, unsubstituted phenyl or phenyl substituted by C ⁇ Calkyl, C ⁇ -C 4 alkoxy or by halogen.
• Suitable aralkyl groups include benzyl, 2-phenylethyl, tolylmethyl, mesitylmethyl and 4-chlorophenylmethyl.
• Heteroaryl as R ⁇ or R 7 contains preferably 4 or 5 carbon atoms and one or two hetero atoms from the group O, S and N. It may be, for example, pyrrolyl, furyl, thiophenyl, oxazolyl, thiazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolyl, purinyl or quinolyl.
• Ri and R 3 are preferably -NHR5 or -SR 7 .
• R 2 and P ⁇ in formula I are preferably -SR 7 .
• R 2 and R- ⁇ are -SR 7 wherein R 7 is aryl or hydroxyalkyl, especially phenyl or 2-hydroxyethyl.
• the compounds of formula I can be prepared, for example, from 1 ,3,5,7-tetrabromo- anthraquinone by reaction with suitable nucleophiles.
• the radicals Ri and R 3 which are preferably identical, are introduced into the reactive 1 ,5-positions.
• R 2 and Rj which are likewise preferably identical.
• the radicals R1 to R-j are identical, the reaction can also be carried out in a single step.
• 1 ,3,5,7-Tetrabromoanthraquinone can, for example, be prepared in two steps from 1 ,5-diaminoanthraquinone. Bromination in aqueous hydrochloric acid yields 1 ,5-diamino- 2,4,6,8-tetrabromoanthraquinone (R. Scholl, F. Eberle, W. Tritsch: Monatshefte fur Chemie 32, 1055 (1911)), which can be converted, by diazotization and subsequent reduction, into 1,3,5,7-tetrabromoanthraquinone (H.Kopf, J. Fuchs, K.H. Eisenmann: Annalen der Chemie 585. 178 (1954); F. Ullmann, O. Eiser: Chemische Berichte 49, 2154 (1916)).
• the invention relates also to a process for the preparation of a compound of formula I which comprises reacting 1,3,5,7-tetrabromoanthraquinone with a compound R 1 -H or with a mixture of the compounds R 1 -H and R 3 -H in a first reaction step, and then reacting the so- prepared intermediate with a compound R 2 -H or with a mixture of the compounds R 2 -H and R t -H, R L R 2I R 3 and R 4 being as defined hereinabove.
• R ⁇ H, R 2 -H, R 3 -H and R_rH are known or can be prepared in a manner known per se.
• the present invention relates also to a method of producing mass-coloured plastics or polymeric colour particles which comprises mixing a high molecular weight organic material and a tinctorially effective amount of at least one compound of formula (I).
• the colouring of the high molecular weight organic substances using the dye of formula (I) is carried out, for example, by using roll mills, mixing apparatus or grinding apparatus to admix such a dye with such substrates, the dye being dissolved or finely distributed in the high molecular weight material.
• the high molecular weight organic material with the admixed dye is then processed according to methods known perse, such as, for example, calendering, compression moulding, extrusion, coating, spinning, pouring or injection moulding, as a result of which the coloured material acquires its final form.
• Admixture of the dye can also be effected immediately prior to the actual processing step, for example by simultaneously continuously feeding, directly into the intake zone of an extruder, a solid, for example pulverulent, dye and a granulated or pulverulent high molecular weight organic material and, where appropriate, also other ingredients, such as additives, the constituents being mixed in just before being processed.
• plasticisers In order to produce non-rigid shaped articles or to reduce their brittleness, it is frequently desirable to incorporate so-called plasticisers into the high molecular weight compounds prior to shaping.
• plasticisers for example, esters of phosphoric acid, phthalic acid or sebacic acid.
• the plasticisers can be incorporated into the polymers before or after the incorporation of the colorant. It is also possible, in order to achieve different colour shades, to add to the high molecular weight organic substances, in addition to the dye of formula (I), also other pigments or other colorants in the desired amounts, optionally together with further additives, for example fillers or siccatives.
• thermoplastic plastics especially in the form of fibres.
• Preferred high molecular weight organic materials that can be coloured in accordance with the invention are very generally polymers having a dielectric constant ⁇ 2.5, especially polyester, polycarbonate (PC), polystyrene (PS), polymethyl methacrylate (PMMA), polyamide, polyethylene, polypropylene, styrene/acrylonitrile (SAN) or acrylonitrile/buta- diene/styrene (ABS). Polyester and polyamide are especially preferred.
• linear aromatic polyesters which can be obtained by polycondensation of terephthalic acid and glycols, especially ethylene glycol, or condensation products of terephthalic acid and 1 ,4-bis(hydroxymethyl)cyclohexane, for example polyethylene terephthalate (PET) or polybutylene terephthalate (PBT); also polycarbonates, e.g. those obtained from ⁇ , ⁇ -dimethyl-4,4-dihydroxy-diphenylmethane and phosgene, or polymers based on polyvinyl chloride and also on polyamide, for example polyamide 6 or polyamide 6.6.
• PET polyethylene terephthalate
• PBT polybutylene terephthalate
• polycarbonates e.g. those obtained from ⁇ , ⁇ -dimethyl-4,4-dihydroxy-diphenylmethane and phosgene
• polymers based on polyvinyl chloride and also on polyamide for example polyamide 6 or polyamide 6.6.
• the compounds of formula (I) according to the invention contain at least two NH, OH or SH groups
• mixing the dye with the monomers and incorporation thereof in the form of a comonomer directly into the polymer skeleton is possible, provided that the monomers contain reactive groups that react with the active hydrogen atoms of the NH, OH or SH groups.
• monomers include epoxides (epoxy resins), isocyanates (polyurethanes) and carboxylic acid chlorides (polyamides, polyesters).
• the invention accordingly relates also to a method of producing mass-coloured plastics or polymeric colour particles that comprises causing a mixture comprising at least one monomer that contains at least one NH-, OH- or SH-reactive group and is capable of polymerisation, polyaddition or polycondensation reactions to react with at least one compound of formula I containing at least two NH, OH or SH groups.
• the present invention relates also to the use of compounds of formula I in the production of mass-coloured plastics or polymeric colour particles and to the plastics or polymeric colour particles coloured using the compounds of formula I.
• the dyes according to the invention impart to the above-mentioned materials, especially polyester materials, level colour shades of high tinctorial strength that have good in-use fastness properties, especially very good high-temperature light fastness.
• the dyes according to the invention can furthermore be used for coating applications of any kind.
• the dyes according to the invention can also readily be used together with other dyes to produce blended shades.
• the anthraquinone dyes of formula (I) according to the invention are furthermore suitable as colorants in the production of colour filters, especially for visible light in the range from 400 to 700 nm, for liquid crystal displays (LCDs) or charge combined devices (CCDs).
• colour filters by sequential application of a red, blue and green colorant to a suitable substrate, for example amorphous silicon, is described in GB-A 2 182 165.
• the colour filters can be coated, for example, using inks, especially printing inks, that comprise the anthraquinone dyes according to the invention, or can be produced, for example, by blending the anthraquinone dyes according to the invention with chemically, thermally or photolytically structurable high molecular weight material.
• the further production can be carried out, for example, analogously to EP-A 654711 by application to a substrate, such as an LCD, followed by photo-structuring and development.
• Other documents that describe the production of colour filters include US-A 5624467, Displays 14/2, 115 (1993) and WO 98/45756.
• the colour filters that are produced for liquid crystal displays (LCDs) using the anthraquinone dyes according to the invention are distinguished by high transmission of colour dots.
• the invention relates also to the use of an anthraquinone dye according to the invention as a colorant in the production of colour filters.
• a glass substrate (Corning type 1737-F) is coated with the resulting dispersion and centrifuged for 30 seconds at 1000 revs/min.. The layer is dried on a hot plate for 2 minutes at 100°C and for 5 minutes at 200°C. The resulting layer thickness is
• Example 1 The following anthraquinone dyes (Table 1), which are likewise suitable for mass-colouring plastics, can be prepared analogously to Example 1 :

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
• Processes Of Treating Macromolecular Substances (AREA)
• Optical Filters (AREA)
• Coloring (AREA)
• Materials For Photolithography (AREA)

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• 2003
  • 2003-03-13 MX MXPA04009117A patent/MXPA04009117A/es active IP Right Grant
  • 2003-03-13 RU RU2004131533/04A patent/RU2315791C2/ru not_active IP Right Cessation
  • 2003-03-13 AU AU2003227058A patent/AU2003227058A1/en not_active Abandoned
  • 2003-03-13 CN CNA038066262A patent/CN1643075A/zh active Pending
  • 2003-03-13 US US10/508,715 patent/US7160335B2/en not_active Expired - Fee Related
  • 2003-03-13 WO PCT/EP2003/002615 patent/WO2003080735A1/en not_active Ceased
  • 2003-03-13 EP EP03744798A patent/EP1487921A1/en not_active Withdrawn
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  • 2003-03-13 KR KR10-2004-7014873A patent/KR20050006132A/ko not_active Abandoned
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