http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11209422-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aba1db49fbbf820d05d999f448264248 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-00 |
| filingDate | 1998-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36ce9a26f3f36261b7ab2d19137b114c |
| publicationDate | 1999-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11209422-A |
| titleOfInvention | Purification method of acrylic polymer and obtained purified acrylic polymer |
| abstract | (57) [Problem] To provide a purified acrylic polymer containing no skin irritating compound. SOLUTION: An acrylic polymer raw material containing a slight amount of a skin irritant compound is used as a solution of a solvent in which both the compound and the polymer are dissolved, and this solution is used as a solvent of the compound and the polymer is crystallized. Precipitating the polymer crystals by dropping into a solvent that can be precipitated as A method for purifying an acrylic polymer, comprising recovering the same. As a solvent for dissolving both of the above, a mixed solution of an organic solvent of the polymer and a water-philic organic solvent is preferably used. Water and / or as a solvent for the compound, which can precipitate the polymer as crystals. Alternatively, a water-affinity organic solvent is used. The skin irritating compound to be removed is specifically a raw material monomer. The acrylic polymer raw material is specifically used as a film-forming polymer base of a jet-type patch, Preferred is a polyisobutyl methacrylate raw material. |
| priorityDate | 1998-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.