http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5223567-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_17e6c778a71c468773a533a0b4dcd1e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F16-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 |
| filingDate | 1992-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-06-29-04:00^^<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_7be9caafbe873f265584563d2d5e4d1c |
| publicationDate | 1993-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5223567-A |
| titleOfInvention | Process for production of an ethanol solution of the ethyl or butyl half-ester of a copolymer of maleic anhydride and methyl vinyl ether |
| abstract | There is described a process for the production of an ethanol solution of an ethyl or butyl half-ester copolymer of maleic anhydride and a methyl vinyl ether which comprises: (a) copolymerizing the monomers in acetone as solvent by simultaneously feeding molten maleic anhydride, a molar excess of methyl vinyl ether, and a solution of a free radical initiator in acetone, into a reactor precharged with acetone, at about 68°-85° C., preferably 70°-80° C.; (b) esterifying the acetone solution of said copolymer with ethanol or butanol; and then (c) solvent exchanging ethanol for acetone by continuously injecting vapors of ethanol at about 85°-95° C. into said copolymer solution while simultaneously distilling out acetone therefrom at atmospheric pressure. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3279329-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102030856-B |
| priorityDate | 1992-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.