http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015504441-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-42 |
| filingDate | 2012-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2015504441-A |
| titleOfInvention | Method for producing salt of acrylamido-2-methylpropanesulfonic acid (A), acrylamido-2-methylpropanesulfonic acid (A) or a salt thereof, and method for producing a copolymer using the same |
| abstract | A salt suitable for polymerization is provided with less by-products. One or more base components (B) selected from the group consisting of oxides or hydroxides of alkali metals, oxides or hydroxides of alkaline earth metals, and amines of the following formula (I) To prepare a solution of acrylamide-2-methyl-propanesulfonic acid (A) salt in an anhydrous organic solvent (L), NR a R b R c (I) (R a , R b , R c radicals are independently hydrogen, C 1 -C 4 -alkyl, hydroxy-C 1 -C 4 -alkyl, or C 1 -C 4 -alkoxy, the base of compound (A) The molar ratio to the component (B) is 1: 1 to 1: 3) Partially removing the organic solvent (L) at a pressure of 0.001 to 2 bar (abs); The dissolved compound (A) salt is recovered by crystallization or precipitation at temperature / pressure / salt concentration change in the solution, etc. A method for producing an acrylamide-2-methylpropanesulfonic acid (A) salt by optionally drying a purified salt. [Selection figure] None |
| priorityDate | 2011-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.