| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_17e6c778a71c468773a533a0b4dcd1e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F216-18 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F16-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L29-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-18 |
| filingDate |
1991-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a01258b7e59a3c3b0ed2b0cd47c54518
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f5b9f0fa71bf88b62582463de2f0ee6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3fc2c26faeed21a8900ce4f47bac6b00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83f0c0a43dd5dd7e4c41a483f0919c8f |
| publicationDate |
1992-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9202564-A1 |
| titleOfInvention |
Maleic anhydride/alkyl vinyl ether polymerization process |
| abstract |
What is described herein is a process for making a copolymer of high specific viscosity by polymerisation of maleic anhydride and a C1-C4 alkyl vinyl ether monomer. The invention involves polymerizing said monomers to form a slurry of said copolymer in excess alkyl vinyl ether as solvent and toluene or an aliphatic organic compound as cosolvent, and is characterized by the steps of: (a) precharging a reactor with C1-C4 alkyl vinyl ether as solvent at a reaction temperature, (b) feeding a mixture of maleic anhydride and a C1-C4 alkyl vinyl ether in substantially stoichiometric amounts, preferably with a slight excess of the alkyl vinyl ether, and at a selected rate, into said precharged reactor, and (c) simultaneously feeding a predetermined mixture of toluene or an aliphatic organic compound and a polymerization initiator continuously over substantially the entire period of polymerization. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6692725-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6800696-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6881803-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0593565-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0593565-A4 |
| priorityDate |
1990-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |