http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2260603-C1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F214-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D127-18 |
| filingDate | 2004-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80e6f1ce92b694848352dd6490f9d986 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9ee39cd6fbf2958008bad3db56766b5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72ea3d715789bb504c73d733ee0d0b21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efc398d3132f25ab27d338ecabb05894 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4070b1d0b43ecac8a833f04f778434b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c09376a7395b5be2ec4bd1580cbc365b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_913296758f31bc271cfb347a3df0ead9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_100eaff51a243326da09414f0371e126 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0cd07f0dbf81ab4e97818487ab2943cf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28314340ebd003675d19a3662cae68a3 |
| publicationDate | 2005-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2260603-C1 |
| titleOfInvention | Method for concentrating aqueous dispersion of copolymer tetrafluoroethylene with hexafluoropropylene |
| abstract | FIELD: organic chemistry, chemical technology, polymers. n SUBSTANCE: invention relates to a method for concentrating an aqueous dispersion of copolymer tetrafluoroethylene with hexafluoropropylene. Method involves thermal settling, mixing the parent dispersion with non-ionogenic surface-active substance as a stabilizing agent, heating the mixture if necessary, its keeping without stirring and the following cooling by natural way if necessary, separation of the concentrated phase from upper layer, diluting the concentrated phase up to the content of copolymer 50-55 wt.-% if necessary. Method involves using neonol AF-9-n as a non-ionogenic surface-active substance representing a mixture of polyethylene glycol esters of monoalkylphenols of the formula: R-C 6 H 4 O-(CH 2 CH 2 O) n H wherein R means isononyl as radical -C 9 H 19 joined to phenol at para-position with respect to hydroxyl group; n means average number of ethylene oxide moles joined to one mole of alkylphenols = 9-10. Indicated neonol is added in the amount 7-10% of water mass in the parent dispersion. Mixture is heated to temperature 55°C, not above, kept its without stirring up to complete separation of phases. Cooling is carried out up to temperature 20-40°C and separation of the concentrated phase from upper layer is carried out at indicated temperature. Invention provides reducing time required for separation of phases. n EFFECT: improved method for concentrating. n 7 cl, 1 tbl, 26 ex |
| priorityDate | 2004-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.