http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2194078-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2435874dc6f5eba095414e0fc683316 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-062 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F290-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-003 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-00 |
| filingDate | 2008-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a627d2c03d015ceffe3a4b40d6e6617b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8144aa60232be6aa8c9844676dd120e2 |
| publicationDate | 2010-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2194078-A1 |
| titleOfInvention | Process for the production of copolymers |
| abstract | The invention relates to a process for the preparation of a copolymer in a semicontinuous operation in a polymerization apparatus comprising a polymerization reactor connected to a metering device wherein acid monomer in the metering device and polyether macromonomer and water are respectively charged in the polymerization reactor, acid monomer is metered from the metering device into the polymerization reactor and / or during the metered addition of the acid monomer into the polymerization reactor radical polymerization initiator is introduced into the polymerization reactor, so that in the polymerization reactor an aqueous medium is formed in which acid monomer and polyether macromonomer are reacted to form the copolymer by free-radical polymerization, as a radical polymerization initiator H 2 O 2 or Alkaliperoxodisulfat containing redox initiator system is used, the temperature of the aqueous medium w uring the polymerization is set to 5 to 43 ° C, at the beginning of the polymerization, the temperature of the aqueous medium is not more than 28 ° C, per mole of polyether macromonomer total of 1 to 20 moles of acid monomer are metered into the polymerization, the weight ratio of the used Polyethermakromonomer to used Water is 5: 1 to 1: 5, wherein at least 70 wt .-% of the water introduced in the polymerization reactor is provided in such a way that it is either at a temperature of at most 19 ° C in the polymerization reactor or before it placed in the polymerization reactor is combined with the polyether macromonomer and thereby has a temperature of at most 19 ° C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102199016-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102199015-A |
| 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
Total number of triples: 38.