http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2012149210-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L83-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-28 |
| filingDate | 2011-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2012149210-A |
| titleOfInvention | ELASTOMERIC MATERIAL EXPANDING IN THE PRESENCE OF WATER OR OIL |
| abstract | 1. A method for producing an elastomer capable of swelling in oil and/or water and saline, comprising the steps of: a) obtaining an inverse aqueous emulsion of polymer particles containing a betaine group obtained by inverse emulsion polymerization of monomers A containing a betaine group, optionally other monomers B and a small amount of multivalent, preferably divalent or trivalent monomers C, which are part of the aqueous phase, distributed in the form of droplets in a hydrophobic dispersion medium containing hydrophobic surfactants; wherein the molar ratio of monomers A to optional monomers B is in the range from 4/96 to 40/60, preferably from 7/93 to 30/70; the molar ratio of polyvalent, preferably divalent or trivalent monomers C per mole of polymer that could be obtained without the addition of monomers C is in the range from 1.5 to 10, preferably from 2 to 4, and b) mixing said elastomer with the reverse aqueous emulsion obtained at stage a).2. The method according to claim 1, wherein in step a) a monomer that is reactive with respect to functional chemical groups present in the elastomer is added to the inverted aqueous emulsion before it is added to said elastomer. The method according to claim 1, wherein the polymer particles have a particle size in the range of 10 nm to 10000 nm, preferably 100 nm to 1000 nm. The method of claim 1 wherein the inverse aqueous emulsion a) is further partially or completely dehydrated and deoiled to form a dry solid containing a hydrophilic polymer and its hydrophobic surfactants |
| priorityDate | 2010-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 137.