| Record no |
2011033097955 |
| Activity status |
Dead or Administration by others |
| Working Title |
AN IMPROVED PROCESS FOR THE PREPARATION OF DIHYDROXYDIPHENYL METHANES |
| Working Inventors |
ANAND PAL SINGH;SHARDA DAGADE; |
| Contributing institutions |
NCL |
| Administered by |
|
| Ownership |
|
| Categories > Subjects |
Polymer sciences and engineering |
| Categories > Portfolio |
Polymerization/Polymer catalysis |
| Disclosure number |
|
| NCL No |
1998-NCL-0056 |
| CSIR No |
1998-NF-0343
|
| Priority date |
02-25-1999 |
| Country |
IN |
| Application number |
0333/DEL/1999 |
| Provisional filing date |
|
| Complete filing date |
02-25-1999 |
| Publication status |
Yes |
| Publication date |
|
| Publication no |
|
| Granted number |
215816 |
| Granted date |
03-04-2008 |
| Final title |
AN IMPROVED PROCESS FOR THE PREPARATION OF DIHYDROXYDIPHENYL METHANES |
| Final Inventors |
ANAND PAL SINGH;SHARDA DAGADE; |
| Abstract |
An improved process for the preparation of dihydroxydiphenylmethanes by reacting phenol over a microporous alumino silicate zeolite catalyst composite material in a ratio of 5 1 to 10 1 in the presence of a condensing agent and an organic solvent at a tem |
| Case status |
Granted + Allowed to lapse |
| Licensing status |
|
| Licensing case no |
|
| Client name |
|
| Lead inventors |
SINGH ANAND PAL |
| Categories > Industry > Primary |
Polymers and Specialty and Others |
| Categories > Industry > other |
|