http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RO-128998-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc8af57221c3aa787586111a2cef5312 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-24 |
| filingDate | 2012-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad315360a5562aa21c7fcf023a76c2e7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d26b36ae4a78d58b9528427bf7f24265 |
| publicationDate | 2017-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RO-128998-B1 |
| titleOfInvention | COMPOSITION AND PROCESS FOR OBTAINING SUPER ABSORBING MATERIALS BASED ON POLYVINYL ALCOHOL AND LIGNINE |
| abstract | The invention relates to a composition and a process for obtaining an absorbent hydrogel based on polyvinyl alcohol/lignin. According to the invention, the composition consists of 50...90% lignin/lignin epoxy resin and 50...10% polyvinyl alcohol. As claimed by the invention, the process consists in dissolving the components, in equal parts, in 7 ml of 9% NaOH solution and adding 2 ml of epichlorohydrin, afterwards the resulting mixture is introduced into a covered crystallyzer and it is kept there for 8 h, at 80°C, in a oven, at the end the obtained hydrogel is washed for removing the unreacted components and the secondary products, and lyophilized, there resulting a product suitable for being used in the pharmaceutical field as a system of controlled release for the pharmacologically active substances. |
| priorityDate | 2012-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.