http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018139319-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0444efde206a2f829562761e58b7e1e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2201-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B3-06 |
| filingDate | 2018-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a05d129d9268053f08f208e91148f66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_916d73fd3023d9a387402d50c4a20632 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53e4c7e4f5ada5688bcfc1c4fa094f3c |
| publicationDate | 2018-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2018139319-A1 |
| titleOfInvention | Method for producing cellulose acetate flakes |
| abstract | An objective of the present inventions is to provide a cellulose acetate having exceptional transparency. This method for producing cellulose acetate flakes comprises: (a) a step in which acetic anhydride is reacted with cellulose in the presence of an acid catalyst and an acetic acid solvent, thereby generating a cellulose acetate dope; (b) a step in which the generated cellulose acetate is hydrolyzed and the acetylation degree is adjusted to 52-59%; (c) a step in which the adjusted cellulose acetate is settled out in the presence of water; (d) a step in which the cellulose acetate obtained by the settling out process is dispersed in a mixed solvent comprising a solvent having a solubility parameter δ of 8-13 and a solvent having a solubility parameter δ of at least 14, thereby forming a slurry; and (e) a step in which cellulose acetate is separated from the slurry and made into flakes. The mixed solvent contains 30-70wt% of the solvent having a solubility parameter δ of 8-13. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020007516-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020013312-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7093256-B2 |
| priorityDate | 2017-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 112.