| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c85d78c6a4459b5dbbc49c82a4c5c107 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-4166
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-4858
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-4866
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-4816
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-343
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B11-193
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-146 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-343
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-4166
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-48 |
| filingDate |
2012-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0632b4a9ec1a4a8981282f39f6b8abdc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be116d7e265a6a7d2a67b95ad3cdaa5b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6403295b8d546a603eccb4a0648068b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25ef0f633c1cbd53d9914c6c887b296e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa0e646cfd73e087993d56e4c7c9b77f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c836d6dacd4f21a119bb8b76eb76d0eb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04144b7cc132779c2f6f58901ed23a87 |
| publicationDate |
2015-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2015065547-A1 |
| titleOfInvention |
Esterified cellulose ethers having a specific substituent distribution |
| abstract |
An esterified cellulose ether comprises (i) aliphatic monovalent acyl groups or (ii) groups of the formula —C(O)—R—COOA wherein R is a divalent aliphatic or aromatic hydrocarbon group and A is hydrogen or a cation or (iii) a combination of aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOA, wherein the cellulose ether has anhydroglucose units joined by 1-4 linkages and has methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl as substituents such that the esterified cellulose ether has an MS (hydroxyalkyl) of 0.05 to 1.00, and hydroxyl groups of anhydroglucose units are substituted with methyl groups such that [s23/s26−0.2*MS(hydroxyalkyl)] is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 3-positions of the anhydroglucose unit are substituted with a methyl group and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxyl groups in the 2- and 6-positions of the anhydroglucose unit are substituted with a methyl group. The esterified cellulose ether is useful as an excipient for poorly water-soluble drugs. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10577432-B2 |
| priorityDate |
2012-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |