http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-689641-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3235c83980ffb54aa9534054d2822ca5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61Q5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K8-46 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-46 |
| filingDate | 1950-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1953-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-689641-A |
| titleOfInvention | Improvements in or relating to compositions and methods for waving hair |
| abstract | A lotion for the cold permanent waving of hair comprises an aqueous solution of a water-soluble mercaptan, e.g. thioglycollic acid, thioglycerol, thiosorbitol or mercaptopropionic acid, and ammonium carbonate and/or ammonium bicarbonate, the solution having been brought to a pH of 7.7 to 9.0 with ammonia. The solution preferably contains 0.4-1.0 M mercaptan and sufficient carbonate to provide a CO3 molarity of between 0.25 and saturation. The solution is preferably prepared by raising the pH of an aqueous thioglycollic acid solution to 5-7 by the addition of ammonia, then adding solid ammonium bicarbonate and raising the pH to 7.7-9.0 by the addition of ammonium hydroxide, thus converting some but not all of the bicarbonate to carbonate. Wetting agents, opacifiers and perfumes may be added. Subsequent treatment of the hair with a neutralizer solution, e.g. aqueous potassium bromate, is effected. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2425850-A1 |
| priorityDate | 1949-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.