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A catalytic process for the preparation of methylene bridged aromatic polyamines through condensation of aromatic amine and formaldehyde, said process comprsising contacting the aromatic amine and formaldehyde with a catalyst selected from the group consisting of zeolites, mesoporous molecular sieves, aluminophosphate based molecular sieves at a temperature in the range of 10 to 250 C, to obtain said methylene bridged aromatic polyamines.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
28 March 2000
Publication Number
Publication Type
Invention Field
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2006-04-25
Renewal Date
Applicants
INDIAN PETROCHEMICALS CORPORATION LIMITED
P.O. PETROCHEMICALS,
DISTRICT VADODRA 391 346,
Gujarat,
India.
Inventors
1. JAGANNATH DAS
P.O. PETROCHEMICALS,
DISTRICT VADODRA 391 346,
Gujarat,
India.
2. PRALHAD AMBADAS GANESHPURE
P.O. PETROCHEMICALS,
DISTRICT VADODRA 391 346
3. ANAND BHIMARAO HALGERI
P.O. PETROCHEMICALS,
DISTRICT VADODRA 391 346
4. MARAYIL RAVINDRANATHAN
P.O. PETROCHEMICALS,
DISTRICT VADODRA 391 346
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 279-mum-2000-power of authority(28-03-2000).pdf | 2000-03-28 |
| 2 | 279-mum-2000-form 3(28-03-2000).pdf | 2000-03-28 |
| 3 | 279-mum-2000-form 1(07-08-2000).pdf | 2000-08-07 |
| 4 | 279-mum-2000-form 19(25-08-2003).pdf | 2003-08-25 |
| 5 | 279-mum-2000-petition under rule 138(16-04-2004).pdf | 2004-04-16 |
| 6 | 279-mum-2000-form 2(granted)-(16-04-2004).pdf | 2004-04-16 |
| 8 | 279-mum-2000-correspondence(16-04-2004).pdf | 2004-04-16 |
| 9 | 279-mum-2000-claims(granted)-(16-04-2004).pdf | 2004-04-16 |
| 11 | 279-mum-2000-cancelled pages(16-04-2004).pdf | 2004-04-16 |
| 12 | 279-mum-2000-correspondence(ipo)-(25-04-2006).pdf | 2006-04-25 |