| Record no |
201102175766 |
| Activity status |
Dead or Administration by others |
| Working Title |
PREPARATION OF POLYCARBONATES WITH BIOXYANION CATALYST |
| Working Inventors |
SWAMINATHAN SIVARAM ; JAGDISH C SEHRA;VENKAT S IYER; ISHWAR S BHARDWAJ ; SHEO SATISH ; |
| Contributing institutions |
NCL |
| Administered by |
|
| Ownership |
|
| Categories > Subjects |
Catalysis |
| Categories > Portfolio |
Petrochemicals/industrial chemicals |
| Disclosure number |
|
| NCL No |
1989-NCL-0028 |
| CSIR No |
1989-NF-0147
|
| Priority date |
04-07-1992 |
| Country |
US |
| Application number |
07/865951 |
| Provisional filing date |
|
| Complete filing date |
04-09-1992 |
| Publication status |
Yes |
| Publication date |
|
| Publication no |
|
| Granted number |
5288838 |
| Granted date |
02-22-1994 |
| Final title |
PREPARATION OF POLYCARBONATES WITH BIOXYANION CATALYST |
| Final Inventors |
SWAMINATHAN SIVARAM ; JAGDISH C SEHRA ;VENKAT S IYER ; ISHWAR S BHARDWAJ ; SHEO SATISH; |
| Abstract |
The invention discloses an improved process for the preparation of aryl polycarbonates. The process involves reacting aryl carbonate and dihydric phenol in the melt phase with a catalyst belonging to the class of quaternary ammonium bioxyanions having the |
| Case status |
Granted + Allowed to lapse |
| Licensing status |
Assignment(Assignment agreement) |
| Licensing case no |
2002-LIC-91 |
| Client name |
GENERAL ELECTRIC COMPANY |
| Lead inventors |
SIVARAM SWAMINATHAN |
| Categories > Industry > Primary |
Petrochemicals |
| Categories > Industry > other |
|