http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1423047-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06P3-76 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P3-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06P1-66 |
| filingDate | 1973-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-01-28^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1423047-A |
| titleOfInvention | Dyeing additives |
| abstract | 1423047 Quaternary ammonium carboxylic esters IMPERIAL CHEMICAL INDUSTRIES Ltd 18 April 1974 [14 May 1973] 22785/73 Heading C2C [Also in Division Dl] Examples 1, 4, 5 and 6 describe the preparation of quaternary ammonium compounds, used as dyeing retarding agents, having the general formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are alkyl or alkenyl, R<SP>4</SP> is H or alkyl, at least one of R<SP>1</SP>-R<SP>4</SP> having at least 8 carbon atoms and the remainder 1-4 carbon atoms, X is an anion, Y is H or methyl and n is 0 or an average from 1-30. In Example 1 trimethyl dodecyloxycarbonylmethyl ammonium chloride is prepared by heating dodecyl alcohol, chloroacetic acid and p-toluene sulphonic acid monohydrate under reflux in toluene. Trimethylamine is then bubbled through the dried solution of the ester in toluene and the white solid separated by filtration. |
| priorityDate | 1973-05-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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