CA2260891A1 - Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same - Google Patents
Syndiotactic/atactic block polyolefins, catalysts and processes for producing the sameInfo
- Publication number
- CA2260891A1 CA2260891A1 CA002260891A CA2260891A CA2260891A1 CA 2260891 A1 CA2260891 A1 CA 2260891A1 CA 002260891 A CA002260891 A CA 002260891A CA 2260891 A CA2260891 A CA 2260891A CA 2260891 A1 CA2260891 A1 CA 2260891A1
- Authority
- CA
- Canada
- Prior art keywords
- syndiotactic
- substituted
- atactic block
- mc5c4r
- halogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title abstract 2
- 229920000098 polyolefin Polymers 0.000 title abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 150000001336 alkenes Chemical class 0.000 abstract 1
- 125000004183 alkoxy alkyl group Chemical group 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- 125000003282 alkyl amino group Chemical group 0.000 abstract 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 125000005842 heteroatom Chemical group 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 239000003446 ligand Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000012968 metallocene catalyst Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
Landscapes
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Metallocene catalysts useful for the preparation of syndiotactic/atactic block polyolefins have the general formula: R"(C4R'mC5C4R'n) XMeQ wherein X is a hetero-atom ligand with one or two lone pair electrons selected from the elements of Group VA or VIA which can be substituted or non-substituted; (C4Rm'C5C4R'n') is a fluorenyl or a symmetrically substituted fluorenyl or cyclopentadienyl ring; R' is hydrogen or hydrocarbyl radical having from 1-20 carbon atoms, a halogen, an alkoxy, and alkoxy alkyl or an alkylamino or alkylsilylo radical, each R' may be the same or different and m and n independently are 0, 1, 2, 3 or 4, with the proviso that the bilateraly symmetry is maintained; R" is a structural bridge between X and the (C4R'mC5C4R'n) ring to impart stereorigidity; Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; Me is a Group IIIB, IVB, VB, or VIB metal as positioned in the Periodic Table of Elements; and Me can be in any of its theoretically possible oxidation states. Olefin monomers (particularly propylene) polymerised using those catalysts to form syndiotactic/atactic block polymers of high molecular weight and comprising at least 70 % of syndiotactic triads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002518358A CA2518358A1 (en) | 1996-07-11 | 1997-07-10 | Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP96111127A EP0818475A1 (en) | 1996-07-11 | 1996-07-11 | Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same |
| EP96111127.5 | 1996-07-11 | ||
| PCT/EP1997/003649 WO1998002469A1 (en) | 1996-07-11 | 1997-07-10 | Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002518358A Division CA2518358A1 (en) | 1996-07-11 | 1997-07-10 | Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2260891A1 true CA2260891A1 (en) | 1998-01-22 |
| CA2260891C CA2260891C (en) | 2005-12-13 |
Family
ID=35518153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002260891A Expired - Fee Related CA2260891C (en) | 1996-07-11 | 1997-07-10 | Syndiotactic/atactic block polyolefins, catalysts and processes for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2260891C (en) |
-
1997
- 1997-07-10 CA CA002260891A patent/CA2260891C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2260891C (en) | 2005-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |