http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-240318-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-43 |
| filingDate | 1924-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1925-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-240318-A |
| titleOfInvention | Manufacture of water-soluble condensation products |
| abstract | Water-soluble condensation products, suitable as such or in the form of salts for use as frothing or emulsifying agents for example in dyeing and pharmacy, are produced by the action of an aralkyl halide or of an aryl halide containing reactive halogen, such as benzyl chloride, xylyl bromide or dichlordihydronaphthalene, upon a sulphonic acid of an aromatic polynucleal hydrocarbon, such as naphthalene, methylnaphthalene, tetrahydronaphthalene, anthracene &c. in the presence of sulphuric acid, or alternatively by the action of a powerful sulphonating agent, such as oleum or a mixture of oleum and chlorsulphonic acid, upon the condensation product of such a halide and the hydrocarbon itself or upon such reagents before condensation. It is stated that if the condensation product of the halide and the hydrocarbon is treated with ordinary concentrated sulphuric acid, further condensation takes place to a hard insoluble resin. In examples naphthalene is sulphonated and the product treated with benzyl chloride at 120-170 DEG C. the mass poured on ice, diluted with water and either treated directly with caustic soda, filtered and the solution evaporated or treated with lime, filtered and the evaporated calcium salt converted into the sodium salt. Benzyl chloride and naphthalene are condensed at 80-90 DEG C. and the product treated with a mixture of oleum and chlorsulphonic acid, caustic soda added and the product dried and pulverized.ALSO:Water-soluble condensation products, suitable for use as such or in the form of salts as frothing agents for example in dyeing, are produced by the action of an aralkyl halide or of an aryl halide containing reactive halogen, such as benzyl chloride, xylyl bromide or dichlordihydronaphthalene upon a sulphonic acid of an aromatic polynucleal hydrocarbon such as napthalene, methylnaphthalene, tetrahydronaphthalene, anthracene &c. in the presence of sulphuric acid, or alternatively by the action of a powerful sulphonating agent, such as oleum or a mixture of oleum and chlor-sulphonic acid, upon the condensation product of such a halide and the hydrocarbon itself or upon such reagents before condensation. |
| priorityDate | 1924-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.