http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1490819-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P1-924 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-92 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-20 |
| filingDate | 1975-10-03^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-11-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1490819-A |
| titleOfInvention | Anthraquinone dyestuffs |
| abstract | 1490819 Mixtures of anthraquinone dyestuffs BAYER AG 3 Oct 1975 [5 Oct 1974 30 May 1975] 40584/75 Heading C4P The invention comprises mixtures of dyestuffs, insoluble in water, having the general formula wherein A and B are amino or hydroxyl, R is and optionally substituted alkylene radical which may be interrupted by an oxygen atom, X is a direct bond, oxygen sulphur or an imino group optionally substituted by alkyl, Ar is an optionally substituted aryl radical, D 1 and D 2 are H or halogen, Hal is Cl or Br anv n is average 0À1 to 2À5. Preferred mixtures contain compounds having n values of 0, 1 and 2. Single compounds of the above general formula wherein (a) n is 2 and D 1 , D 2 , A, B, R, X, Ar and Hal are as defined above, (b) n is 1 or 2 and A and B are simultaneously OH or simultaneously NH 2 and D 1 , D 2 , R, X, Ar and Hal are as defined above (c) A is HN 2 , B is OH, R is C 3 -C 10 -alkylene, X is 0, a direct bond or an imino group optionally substituted by C 1 -C 4 alkyl, Ar is phenyl optionally substituted by 1-3 C 1 -C 4 alkyl groups and n is 1 or 2 and (d) Mixtures wherein n is 0, 1 or 2 and A, B, D 1 , D 2 , R, X, Ar and Hal are as defined above are claimed per se. They are prepared by (a) reacting a compound of the general formula with a compound HO-R-X-Ar-(Hal) n at elevated temperatures in presence of a basic compound and optionally an organic solvent, E is a leaving atom or group and A, B, D 1 , D 2 , R, X, Ar, Hal and n are as defined above, (b) reacting a compound of the formula in (a) where E is -O-R-T and T is Cl, Br, or an aryl sulphonyloxy or alkane sulphonyloxy group with a compound of the general formula HX 1 -Ar-(Hal) n , at elevated temperatures in presence of a basic compound and optionally an organic solvent, (c) reacting a compound of the formula in (a) where E is OH with a compound of the general formula U-R-X-Ar-(Hal) n where U is Cl, Br, or arylsulphonyloxy at elevated temperatures in presence of a basic compound and optionally an organic solvent or (d) by brominating the Ar radical preferably at room temperature to 90 C. The dyes are used to dye or print polyesters, cellulose 2¢-and 3- acetates, polyamides, polyurethanes, p.a.c., polyolefins and polycarbonates. Unions with cellulose fibres, e.g. cotton may be dyed with addition of vat or reactive dyes. Orange, red and violet shades are obtained. |
| priorityDate | 1974-10-05^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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