| 54 |
Title |
TI |
[EN] METHOD OF DETERMINING THE WEIGHT OF THE COATING TO BE APPLIED TO FORM A CONTROLLED RELEASE DOSAGE FORM |
| 71/73 |
Applicant/owner |
PA |
GLATT AIR TECH INC, US
|
| 72 |
Inventor |
IN |
ETTNER ANNE, DE
;
FEMIA ROBERT A, US
;
JONES DAVID, US
;
MUELLER OLIVER, US
;
POLLINGER NORBERT, DE
;
PRASCH ARMIN, DE
;
RANGUNATHAN NARAYAN, US
;
RUBINO ORAPIN, US
|
| 22/96 |
Application date |
AD |
Feb 6, 2008 |
| 21 |
Application number |
AN |
44966708 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Jan 20, 2011 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
US
2008001639
Feb 6, 2008
|
33
31
32 |
PRC
PRN
PRD |
US
90322407
Feb 23, 2007
|
| 51 |
IPC main class |
ICM |
A61K 9/14
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
A61K 31/138
(2006.01)
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
A61J 3/005
A61K 31/138
A61K 9/5047
A61K 9/5089
|
|
MCD main class |
MCM |
A61K 9/14
(2006.01)
|
|
MCD secondary class |
MCS |
A61K 31/138
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] A method of coating spherical particles of a beta blocker compound which is based on (a) determining the surface area of a weighed sample of said spherical particles; (b) determining the weight of coating material per surface area unit of spherical particles that will provide a desired release profile for said beta-blocker; (c) determining the surface area of a subsequent batch of spherical particles containing the same beta; (d) coating the subsequent batch of spherical particles with the coating applied in step (b) to provide a coating having substantially the same weight of coating material per surface area unit of spherical particles as determined in step (b). |
| 56 |
Cited documents identified in the search |
CT |
US000005460828A
US000005527545A
US020060099259A1
US020070082050A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
Bodea et al., Optimization of Propranolol Hydrochloride Sustained-Release Pellets Using Box-Behnken Design and Desirability Function, 1998, Drug Development and Industrial Pharmacy, vol. 24 iss. 2, pp. 145-155. 9;
Dashevsky et al., Physiochemical and release properties of pellets coated with Kollicoat® SR 30 D, a new aqueous polyvinyl acetate dispersion for extended release, 01/06/2005, International Journal of Pharmaceutics, vol. 290, pp. 15-23. 9;
Kolter et al., New Pharmaceutical Excipients, BASF ExAct, 11/1999, no. 3, pp.1-12. 9
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
A61K 31/138
A61K 9/14
|
