http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102245657-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2435874dc6f5eba095414e0fc683316 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F267-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F265-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-062 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-142 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F265-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F267-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-14 |
| filingDate | 2009-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5029f6450c6a31f74cc49161232eb1d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6fb7a2488d3b964b2918f00374e20d9b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73757a160664045b79219515d14f9c93 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81b0fc4b9d23c8e6708e929f329bb5af |
| publicationDate | 2011-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102245657-A |
| titleOfInvention | Semi-continuous process for the preparation of copolymers |
| abstract | The present invention relates to a process for the preparation of copolymers in a polymerization plant with semi-continuous operation, said plant comprising a polymerization reactor connected to a metering unit in which acid monomers are supplied and in the polymerization reactor polyether macromer and water. According to the invention: the acid monomer is metered into the polymerization reactor from the metering unit through the acid monomer metering supply line; the free radical polymerization initiator is introduced into the polymerization reaction before and/or during the metering of the acid monomer into the polymerization reactor A vessel such that an aqueous medium is formed in said reactor in which acid monomers and polyether macromonomers are converted to copolymers by free radical polymerization. During free-radical polymerization: a part of the aqueous medium containing the copolymer is continuously withdrawn from the polymerization reactor by means of a reaction mixture line which is connected to the acid monomer metering line via a mixing unit; During the metering, the recovered aqueous medium containing the copolymer is mixed with the acid monomer in a mixing unit and after mixing it is returned to the polymerization reactor by means of the acid monomer metering line. |
| priorityDate | 2008-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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