| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94ff2d78578d95d1e8d3a2233c76188d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D1-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-147
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D1-29 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C305-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-147
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D1-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D1-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C305-06 |
| filingDate |
1997-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4baddeb2dcfe34c0b6ea2d7c073af5b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a25880edaf95867ad826d237655df07f |
| publicationDate |
1999-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0888295-A1 |
| titleOfInvention |
Synthesis of anionic cleaning agents |
| abstract |
There is provided a method of synthesis of a disulfated cleaning agent from a substituted cyclic anhydride, particularly a substituted succinic anhydride, having one or more carbon chain substituents comprising in total at least 5 carbon atoms comprising the following steps: (i) reduction of said substituted cyclic anhydride to form a diol; (ii) optionally, alkoxylation of said diol to form an alkoxylated diol; and (iii) sulfation of said diol to form a disulfate, wherein said reduction step comprises hydrogenation in the presence of a transition metal-containing hydrogenation catalyst. The hydrogenation is carried out under pressure. |
| priorityDate |
1996-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |