| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2bb724dd58cbb2a73b244e79b0c9e42 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-02 |
| filingDate |
1994-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ceed78992067c0be323cf65677aca11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_761fdee499d0d2274dd4550a19179597
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d20ab8de8804a8361e246cc69e8b08b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b764577e74749c25170a4ab3c9fc8af8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_426b0952c9fae6adbdf9ae2ad7baac1a |
| publicationDate |
1995-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9501331-A1 |
| titleOfInvention |
Preparation of ammonium hydroxyalkyl/alkanoylalkyl sulfonates |
| abstract |
A method is disclosed for preparing ammonium hydroxyalkyl sulfonate by a process of reacting ammonium bisulfite and alkylene oxide wherein the pH is maintained at a relatively low value throughout most of the time of the reaction of ammonium bisulfite and alkylene oxide in order to minimize the quantity of impurities, e.g. alkylene glycol and alkanolamine, in the ammonium hydroxyalkyl sulfonate. Ammonium alkanoyl alkyl sulfonates prepared by reacting such ammonium hydroxyalkyl sulfonates with fatty acids form aqueous solutions which are clear at ambient temperatures, and thus are useful as surfactants in clear liquid products. Also disclosed is the prevention of corrosion in metallic reactors used to conduct the fatty acid-ammonium hydroxyalkyl sulfonate reaction by conducting the reaction in the presence of hypophosphorous acid or water soluble salts thereof. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0725812-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0735020-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0735020-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11359163-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3080384-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0725812-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019202276-A1 |
| priorityDate |
1993-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |