http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103233290-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d7b8bd16defc43bab71d07b1f1321e1f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A24D3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F2-28 |
| filingDate | 2013-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac21bcb7bb7ad4046e1ece0c32476cb9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1ce86fb993ad02cafe283813b6f1e25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62fe0bd49d4aa721f0fc5a6facf3cee1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44a3058a489fec0b1d2680de35ac29a8 |
| publicationDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103233290-B |
| titleOfInvention | Preparation method for cellulose carbamate fiber tow for cigarette |
| abstract | The present invention provides a preparation method for cellulose carbamate fiber tow for cigarette. According to the method, cellulose carbamate with a viscosity-average molecular weight of 48000-100,000 and a nitrogen content of 0.1wt%-7.0wt% is dissolved in a mixed aqueous solution of sodium hydroxide and zinc oxide to give a spinning solution with a certain concentration; and by using a wet spinning technique for spinning, and a mixed solution of sulfuric acid, sodium sulphate and zinc sulphate as a regeneration bath, the cellulose carbamate fiber tow for cigarette is obtained from the spinning solution through several processes of spinning -spinning oil applying- drafting- crimping-drying. The filter rod produced by using the tow of the invention has obvious filtering effect on harmful substances in smoke, and can be used in cigarette to replace cellulose acetate fiber tow and acrylic fiber tow. |
| priorityDate | 2013-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.