http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0672688-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_30676b8771a7a6cd3c658fd0a3e0a4b1 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F110-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-6592 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65908 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-659 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-643 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-653 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F17-00 |
| filingDate | 1991-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1996-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3182a311bdf980173c9543ab846c2c83 |
| publicationDate | 1996-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0672688-B1 |
| titleOfInvention | Aluminum-free monocyclopentadienyl metallocene catalysts for olefin polymerization |
| abstract | The invention relates to a process for olefin polymerisation at a temperature of from -100 to 0°C or 100 to 300°C using a catalyst system of the following formula :wherein: M is Zr, Hf or Ti and is in its highest formal oxidation state (+4, d⁰ complex);(C₅H<sub>5-y-x</sub>R<sub>x</sub>) is a cyclopentadienyl ring which is substituted with from zero to five substituent groups R, "x" is 0, 1, 2, 3, 4 or 5 denoting the degree of substitution, and each substituent group R is, independently, a radical selected from a group consisting of C₁-C₂₀ hydrocarbyl radicals, substituted C₁-C₂₀ hydrocarbyl radicals wherein one or more hydrogen atoms is replaced by a halogen atom, C₁-C₂₀ hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the Group IV A of the Periodic Table of Elements, and halogen radicals, or (C₅H<sub>5-y-x</sub>R<sub>x</sub>) is a cyclopentadienyl ring in which two adjacent R-groups are joined forming a C₄-C₂₀ ring to give a polycyclic cyclopentadienyl ligand;(JR'z-l-y) is a heteroatom ligand in which J is an element with a coordination number of three from Group VA or and element with a coordination number of two from Group VI A of the Periodic Table of Elements, and each R' is, independently a radical selected from a group consisting of C₁-C₂₀ hydrocarbyl radicals, substituted C₁-C₂₀ hydrocarbyl radicalswherein one or more hydrogen atoms is replaced by a halogen atom, and "z" is the coordination of number of the element J;each Q may be independently, hydride, C₁-C₅₀ hydrocarbyl radicals, substituted hydrocarbyl radicals wherein one or more hydrogen atom is replaced by an electron-withdrawing group such as a halogen atom, or alkoxide radical, or C₁-C₅₀ hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the Group IV-A of the Periodic Table of Elements, provided that where any Q is a hydrocarbyl such Q is different from(C₅H<sub>5-y-x</sub>R<sub>x</sub>),or both Q together may be an alkylidene, olefin, acetylene or a cyclometallated hydrocarbyl,"y" is 0 or 1; when "y" is 1, B is a covalent bridging group containing a Group IV A or V A element,L is a neutral Lewis base; and "w" is a number from 0 to 3,[A]⁻ is a labile, bulky anion which is either a single coordination complex having a plurality of lipophilic radicals covalently coordinated to and shielding a charge bearing metal or metalloid centre or an anionic complex containing a plurality of boron atoms. |
| priorityDate | 1990-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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