| Record no |
2013011699224 |
| Activity status |
Dead or Administration by others |
| Working Title |
GRAFT COPOLYMER COMPOSITION WITH PH DEPENDENT BEHAVIOUR |
| Working Inventors |
RAMESH MUTHUSAMY;MOHAN GOPALKRISHNA KULKARNI; |
| Contributing institutions |
NCL |
| Administered by |
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| Ownership |
|
| Categories > Subjects |
Polymer sciences and engineering |
| Categories > Portfolio |
Controlled delivery of active agents |
| Disclosure number |
2008-INV-0017 |
| NCL No |
2009-NCL-0003 |
| CSIR No |
2009-NF-0069
|
| Priority date |
03-09-2010 |
| Country |
EP |
| Application number |
11719897.8 |
| Provisional filing date |
|
| Complete filing date |
09-06-2012 |
| Publication status |
Yes |
| Publication date |
01-16-2013 |
| Publication no |
EP2545089 A1 |
| Granted number |
2545089 B1 |
| Granted date |
08-27-2014 |
| Final title |
GRAFT COPOLYMER COMPOSITION WITH PH DEPENDENT BEHAVIOUR |
| Final Inventors |
RAMESH MUTHUSAMY;MOHAN GOPALKRISHNA KULKARNI; |
| Abstract |
A graft copolymer with pH dependent behavior of formula 1 Comprises i a backbone having the formula 1 AX BY Cz wherein A is diol B is dicarboxylic acid or acid anhydride and C is monomer containing pendent unsaturation such that x 4145 y 4953 z 47 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 2252 . 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 |
| Case status |
Granted + Allowed to lapse |
| Licensing status |
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| Licensing case no |
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| Client name |
|
| Lead inventors |
MOHAN GOPALKRISHNA KULKARNI |
| Categories > Industry > Primary |
Polymers and Specialty and Others |
| Categories > Industry > other |
|