http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011111071-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_393c21543af36b386feb34e3af404d8a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cffcba992fd606a549be63c192bd5528 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-01 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-34 |
| filingDate | 2011-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_644e1300c717e050bfd5d35cddb01de9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c00759d6c446e9468672c1f9906d260 |
| publicationDate | 2011-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2011111071-A1 |
| titleOfInvention | Graft copolymer with ph dependent behaviour |
| abstract | A graft copolymer with pH dependent behavior of formula 1 Comprises, (i) a backbone having the formula 1 [A (X) B (Y) C (z) ] wherein (A) is diol, (B) is dicarboxylic acid or acid anhydride and (C) is monomer containing pendent unsaturation such that (x) = 41-45 %, (y) = 49-53 % (z) = 4-7 % by mole; and (ii) a graft which is a polymer of the basic monomer (D) which comprises "w" weight percent of the total weight of said graft copolymer such that 'w' is 22-52 %. The graft copolymers do not swell / dissolve at neutral and basic pH and swell / dissolve at acidic pH. The polymers are useful as protective coating for pharmaceutical dosage forms and as excipient in the development of extended release drug delivery systems. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020126811-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3670553-A1 |
| priorityDate | 2010-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 126.