http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3009149-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5e3324a35e1615e6eede6df1be26b7dd |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-193 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B11-193 |
| filingDate | 1980-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2768481f72204e99a5fe90540505c79b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62f6cdd2ec38138c62d8088c5d30f0b5 |
| publicationDate | 1981-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3009149-A1 |
| titleOfInvention | METHOD FOR THE EATING OF CELLULOSES |
| abstract | Cellulose ethers are prepd. by reacting a cellulose, opt. treated with an aq. alkali hydroxide soln., with an etherifying agent, in the presence of an aq. alkali hydroxide soln., an organic water-immiscible solvent capable of dissolving the etherifying agent, and of a quat. salt having formula (R1R2R3R4M)X (I) (where M is N or P; R1,R2,R3 and R4 each is an organic gp., esp. 1-4C alkyl or benzyl, and X is an anion). The pref. etherifying agent is a 1-4C alkyl halide or a benzyl halide. Carboxymethyl ethyl cellulose can be used as a coating for enteric pharmaceuticals. The substituents introduced by eetherification are evenly distributed. High grade low-viscous carboxymethyl ethyl cellulose can be prepd. having high whiteness, transparency and even degree of depolymerisation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0032636-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0497985-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0497985-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5476668-A |
| priorityDate | 1980-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 79.