http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-804833-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4e7ae91e452881324137d2a1adba93b1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D3-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D3-02 |
| filingDate | 1955-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1958-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-804833-A |
| titleOfInvention | Process for the production of metallic coatings |
| abstract | Thioalkane sulphonic acids or their salts R.S.R1-SO3X where R is hydrogen or a cyclic or acyclic hydrocarbon residue which is linked with the sulphur atom either directly or via -C(NH)-, -CO-, -CS-, or -SO2-and may be interrupted or substituted by a group containing oxygen, sulphur, or nitrogen, R1 is a saturated divalent acyclic hydrocarbon group, and X is hydrogen or a substituent obtained by reacting the acid with an organic or inorganic base, other than sulphonic acids or salts as in Specification 762,257 which contain a carbon atom linked exclusively to three other atoms of the elements oxygen, sulphur, and nitrogen, are produced by reacting either (a) sultones such as 1 : 3-propane-sultone and 1 : 4-butanesultone, or haloalkane-sulphonic acids or their salts with metal sulphides, metal hydrosulphides, mercapto compounds, or metal compounds of carbithio acids, thiolic acids, or thioamides, or (b) mercapto-alkanesulphonic acids with halogen compounds. Numerous examples of thioalkanesulphonic acids and salts are given. Typical examples are mercapto-ethane sodium sulphonate, methylcyclohexyl-, phenyl-, benzyl-, or furfurylthiopropane o -sodium sulphonate; di-n-propylthioether o : o 1-bis-(sodium sulphonate); ethylene - 1 : 2 - bis - thiopropane - o - sodium sulphonate; 4-bromophenyl- or 4-bromo-benzoyl - thioethane - o - sodium sulphonate; and the o -sodium sulphonates of the S-propyl esters of thioacetic acid, thiobenzoic acid, methyl- or phenyl-carbithio acids, and phenylsulphothiolic acid; thioacetamide or thioacetanilide - S - propane - o - sodium sulphonate; thiobenzamide - S - butane - o - sodium sulphonate; and diethyl ether-2 : 21-bis-thio propyl-o -sodium sulphonate.ALSO:To produce bright metal coatings there is added to a metal plating bath a thioalkane sulphonic acid or salt thereof R-S-R1-SO3X, where R is hydrogen or an acyclic or cyclic hydrocarbon residue which is linked with the sulphur atom either directly or via -C(NH)-, -CO-, -CS-, or -SO2-, and may be interrupted or substituted by a group containing oxygen, sulphur or nitrogen. X is hydrogen or a substituent obtained by reacting the acid with an organic or an inorganic base, and the sulphonic acid or salt is not one which contains, as in Specification 762,257 [Group XXXVI] a carbon atom linked exclusively to three other atoms of the elements oxygen, sulphur and nitrogen. Numerous suitable compounds are specified. Typically, a firmly adhering glossy copper coating is formed on a cleaned iron or steel sheet by immersion in a bath containing 20 to 30 g/l copper sulphate and 40 to 80 g/l sulphuric acid to which has been added 10 to 20 g/l phenyl thiopropylether-o -sodium sulphonate. |
| priorityDate | 1954-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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Total number of triples: 58.