CS9000305A2 - Combined catalytic system for polyethylene production with molecule masses' broad and/or bimodal classification - Google Patents
Combined catalytic system for polyethylene production with molecule masses' broad and/or bimodal classificationInfo
- Publication number
- CS9000305A2 CS9000305A2 CS30590A CS30590A CS9000305A2 CS 9000305 A2 CS9000305 A2 CS 9000305A2 CS 30590 A CS30590 A CS 30590A CS 30590 A CS30590 A CS 30590A CS 9000305 A2 CS9000305 A2 CS 9000305A2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- vanadium
- cpd
- formula
- alkyl
- aliphatic
- Prior art date
Links
- -1 polyethylene Polymers 0.000 title abstract 7
- 239000004698 Polyethylene Substances 0.000 title 1
- 230000002902 bimodal effect Effects 0.000 title 1
- 230000003197 catalytic effect Effects 0.000 title 1
- 229920000573 polyethylene Polymers 0.000 title 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000003607 modifier Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 239000002879 Lewis base Substances 0.000 abstract 1
- 229910021551 Vanadium(III) chloride Inorganic materials 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 125000005907 alkyl ester group Chemical group 0.000 abstract 1
- 150000005215 alkyl ethers Chemical class 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 abstract 1
- 229920001038 ethylene copolymer Polymers 0.000 abstract 1
- 150000008282 halocarbons Chemical class 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000007527 lewis bases Chemical class 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 abstract 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 1
- HQYCOEXWFMFWLR-UHFFFAOYSA-K vanadium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[V+3] HQYCOEXWFMFWLR-UHFFFAOYSA-K 0.000 abstract 1
Landscapes
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
A mixed catalyst system comprises a) the reaction prod. of i) a vanadium halide of formula VX3, X = Cl, Br or I; ii) a modifier of formula BX3 or AlR(3-a)Xa, where R = 1-14C alkyl; a = 0-2; and iii) an electron donor, which is a liq. Lewis base in which (i) and (ii) are soluble; b) one of the following i) a complex of formula ZrMgbXc(ED)d (where ED = electron donor, which is a liq. lens base in which the precursors of the complex are soluble; b = 1-3; c = equal or less than 4+2b; and d = 4-10; or ii) a vanadium oxy cpd. of formula VOX3, where R = monovalent 2-10C hydrocarbon radical, the vanadium cpd. and the vanadium oxy cpd. are supported c) a hydrocarbyl aluminium cocatalyst; and d) a halocarbon promoter offormula ReCX(4-e), where R = H or opt. halo substd. 1-6C alkyl, e = 0-2, if no F present e = 2. - Also claimed is the prodn. of an ethylene (co)polymer by passing ethylene opt. with 3 or more C 2-olefin comonomer(s) in contact with the above mixed catalyst system, under polymerisation conditions. - The electron donors are alkyl esters of aliphatic and aromatic carboxylic acids, aliphatic ketones, aliphatic amines, aliphatic alcohols, (cyclo) alkyl ethers ot mixts. of these, each, electron donor as 2-20C atoms and (b) is the complex (b)(i) pref. ZrMg2Cl8 (tetrahydrofuran)6 or (b) is the vanadium oxy cpd. (b) (ii) pref. VOCl3 (a) is the reaction prod. of vanadium trichloride, diethylaluminium chloride as the modifier,a nd THF, the prod. is impregnated on a silica support.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/114,040 US4918038A (en) | 1987-10-29 | 1987-10-29 | Process for the production of polyethylene with a broad and/or bimodal molecular weight distribution |
| CS887116A CS275370B2 (en) | 1987-10-29 | 1988-10-27 | Method of ethylene homopolymer or copolymer production with molecule masses' broad and/or bimodal classification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS9000305A2 true CS9000305A2 (en) | 1991-04-11 |
| CS276146B6 CS276146B6 (en) | 1992-04-15 |
Family
ID=25746448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS90305A CS276146B6 (en) | 1987-10-29 | 1988-10-27 | Combined catalytic system for the production of polyethylene with wide and/or bimodal distribution of molecular weights |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS276146B6 (en) |
-
1988
- 1988-10-27 CS CS90305A patent/CS276146B6/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS276146B6 (en) | 1992-04-15 |
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