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A process for the preparation of a lower a-alkene polymerization heterogeneous solid catalyst comprising mixing a hydrated magnesium chloride derived procatalyst, a cocatalyst comprising an organoaluminium compound and a selectivity control agent comprising an ester or ether; wherein the procatalyst is obtained by:i) refluxing hydrated magnesium chloride with an aliphatic alcohol in the mole ratio 0.5 - 1 : 10 - 20 in a hydrocarbon and/or halohydrocarbon solvent followed by dehydration of the reaction mixture;ii) reaction of the resulting magnesium chloride alcoholate with an activated carbonyl compound in the presence of a hydrocarbon and/or halohydrocarbon solvent in the mole ratio 0.5-1 : 10 - 20 at 30 - 160°C optionally followed by dehydration of the reaction mixture;25 iii) reaction of the resulting magnesium chloride ester complex precursor comprising the internal electron donor ester component generated insitu, with a titanium tetrahalide optionally in the presence of a hydrocarbon and/or halohydrocarbon solvent at 30 - 130°C followed by isolating the resulting procatalyst; the mole ratio of the aluminium to the titanium being 10 - 300 : 1 and that of the selectivity control agent to the titanium being 10 -100: 1.
Notices, Deadlines & Correspondence
Patent Information
Applicants
RELIANCE INDUSTRIES LIMITED
Inventors
1. BHADURI SUMIT ,; GUPTA VIRENDRA KUMAR,;
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | in-pct-2002-00108-mum-form 1a(25-01-2002).pdf | 2002-01-25 |
| 2 | in-pct-2002-00108-mum-petition under rule 124-(03-10-2002).pdf | 2002-10-03 |
| 3 | in-pct-2002-00108-mum-form 3(03-10-2002).pdf | 2002-10-03 |
| 4 | in-pct-2002-00108-mum-form 26(03-10-2002).pdf | 2002-10-03 |
| 5 | in-pct-2002-00108-mum-correspondence 2(03-10-2002).pdf | 2002-10-03 |
| 6 | in-pct-2002-00108-mum-form 26(07-10-2003).pdf | 2003-10-07 |
| 7 | in-pct-2002-00108-mum-form 19(07-10-2003).pdf | 2003-10-07 |
| 8 | in-pct-2002-00108-mum-form 13(07-10-2003).pdf | 2003-10-07 |
| 9 | in-pct-2002-00108-mum-form-pct-isa-210(19-01-2004).pdf | 2004-01-19 |
| 10 | in-pct-2002-00108-mum-form 2(granted)-(16-04-2004).pdf | 2004-04-16 |
| 12 | in-pct-2002-00108-mum-claims(granted)-(16-04-2004).pdf | 2004-04-16 |
| 14 | in-pct-2002-00108-mum-cancelled pages(16-04-2004).pdf | 2004-04-16 |
| 15 | in-pct-2002-00108-mum-form 8(23-07-2004).pdf | 2004-07-23 |
| 16 | in-pct-2002-00108-mum-correspondence(ipo)-(16-11-2004).pdf | 2004-11-16 |
| 17 | in-pct-2002-00108-mum-correspondence 1(11-05-2006).pdf | 2006-05-11 |
| 18 | IN-PCT-2002-00108-MUM-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(05-09-2006).pdf | 2006-09-05 |
| 19 | IN-PCT-2002-00108-MUM-CORRESPONDENCE-(06-11-2013).pdf | 2013-11-06 |
| 20 | Form 27 [30-03-2016(online)].pdf | 2016-03-30 |
| 21 | Form 27 [23-02-2017(online)].pdf | 2017-02-23 |
| 22 | IN-PCT-2002-00108-MUM-RELEVANT DOCUMENTS [27-03-2018(online)].pdf | 2018-03-27 |
| 23 | IN-PCT-2002-00108-MUM-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(6-11-2012).pdf | 2018-08-08 |
| 24 | 200515.pdf | 2018-08-08 |
| 25 | IN-PCT-2002-00108-MUM-RELEVANT DOCUMENTS [28-03-2019(online)].pdf | 2019-03-28 |
| 26 | IN-PCT-2002-00108-MUM-FORM 4 [09-12-2019(online)].pdf | 2019-12-09 |
| 27 | IN-PCT-2002-00108-MUM-RELEVANT DOCUMENTS [31-03-2020(online)].pdf | 2020-03-31 |