| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_758994071efb42b565fc2c04637be131 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-11 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 |
| filingDate |
1995-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4e4466166cd80563312620315fb6c5c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe27a9f6ce9bf2ccd8ebdc3306221ece
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a65ba7a8f1c58982edf303c10a6f395
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_119685f5f1086761ba7d7a3f954dd9fd |
| publicationDate |
1996-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5523465-A |
| titleOfInvention |
Process for producing an unsymmetrical diester of α, β-unsaturated dicarboxylic acid |
| abstract |
A process for producing a colorless unsymmetrical-diester of maleic acid, useful as a raw material of an emulsifier for emulsion polymerization and as a modifier for a polymer, which comprises: n (1) reacting maleic anhydride with a monohydric alcohol in the presence of an inert organic solvent, in a molar ratio of 1:(1.0-1.2) to obtain maleic acid mono ester containing substantially no unreacted maleic anhydride, and n (2) reacting said monoester with an alkenyl halide in the presence of a tertiary amine and water, in a molar ratio of said monoester:water of 1:(0.01-0.20). |
| priorityDate |
1993-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |