http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-292181-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_798f3caa292684e1560945c2ba4126a8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S8-921 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B5-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P1-384 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-503 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-341 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B62-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B62-82 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B62-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B62-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-384 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B5-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-503 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B1-22 |
| filingDate | 1926-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1928-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-292181-A |
| titleOfInvention | Improvements in or relating to the dyeing, printing, or stencilling of materials made of or containing cellulose derivatives |
| abstract | 292,181. Dreyfus, H. Dec. 14, 1926. Samples furnished. #-Amino compounds; anthraquinone, azo and nitro dyes.-Colouring matters (excepting azo dyes) containing #-amino groups other than urea or thiourea derivatives, i.e. compounds in which an aryl dye nucleus is linked to an amino group or aliphatically-substituted amino group through a side chain comprising a carbon atom or atoms, with or without other atoms such as nitrogen or oxygen, are suitable for dyeing or otherwise colouring cellulose esters and ethers. Such compounds may be produced by the reduction of nitriles (e.g. by creating the nitrile in alcoholic solution with zinc and hydrochloric acid or with sodium), by treating amines containing or not containing an o-carboxylic group or phenols with an alkylene diamine in the presence of a sulphite. or by treating an amine or phenol with an aminoalkyl halide. According to examples, (1) 1- methylamino-4-aminomethylanthraquinone, obtained from 1-methylamino-4-chloranthraquinone by heating with cuprous cyanide in presence of pyridine and reducing the nitrile, dyes cellulose acetate in red shades, (2) the product obtained from 1: 4-amino-oxyanthraquinone by heating with chloracetyl chloride, reducing to the leuco compound, heating the latter under pressure with alcoholic methylamine and oxidizing gives reddish-violet shades; more soluble products giving similar shades are obtained by using an amino alcohol, e.g. gamma-amino-a-#-dioxypropane instead of methylamine, (3) the condensation product from anthrapyrimidone and epichloramine dyes cellulose acetate in pale yellow shades, and (4) 4 : 4<1> - diaminoethylamino-2- nitrodiphenylamine, obtained by condensing 4 : 4'-diamino - 2 - nitrodiphenylamine with #- bromethylamine dyes cellulose acetate in pale yellow shades. The Provisional Specification includes the use of #-amino derivatives (other than urea and thiourea derivatives) of dyestuffs in general, including azo dyes, and gives additional examples of the use of the azo dyes obtained (1) bv condensing potassium p-nitrophenolate with #-bromethylamine, reducing, diazotizing and coupling with a-naphthylamine and (2) by coupling diazotized o-amino-a-phenylethylamine with #-aminoethylaniline. |
| priorityDate | 1926-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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