Sweet MAO
The present invention relates to activators for polymerization catalysts. More particularly the present invention relates to aluminoxane (or alumoxane or polyaluminum oxide) activators which have been treated with a carbohydrate prior to use as activators for polymerization catalysts such as single...
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| creator | Hoang, Peter Phung Minh Jeremic, Dusan Kearns, Jason Roy Coulter, Iain McLaren Donaldson, Robert D |
| description | The present invention relates to activators for polymerization catalysts. More particularly the present invention relates to aluminoxane (or alumoxane or polyaluminum oxide) activators which have been treated with a carbohydrate prior to use as activators for polymerization catalysts such as single site catalysts. The present invention also relates to catalyst systems activated with such treated aluminum compounds and to polymerization processes using such treated aluminum compounds.
Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar. |
| format | Patent |
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Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar.</description><language>eng</language><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6750170$$EPDF$$P50$$Guspatents$$Hfree_for_read</linktopdf><link.rule.ids>230,308,776,798,881,64012</link.rule.ids><linktorsrc>$$Uhttps://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6750170$$EView_record_in_USPTO$$FView_record_in_$$GUSPTO$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Hoang, Peter Phung Minh</creatorcontrib><creatorcontrib>Jeremic, Dusan</creatorcontrib><creatorcontrib>Kearns, Jason Roy</creatorcontrib><creatorcontrib>Coulter, Iain McLaren</creatorcontrib><creatorcontrib>Donaldson, Robert D</creatorcontrib><creatorcontrib>Nova Chemicals (International) S.A</creatorcontrib><title>Sweet MAO</title><description>The present invention relates to activators for polymerization catalysts. More particularly the present invention relates to aluminoxane (or alumoxane or polyaluminum oxide) activators which have been treated with a carbohydrate prior to use as activators for polymerization catalysts such as single site catalysts. The present invention also relates to catalyst systems activated with such treated aluminum compounds and to polymerization processes using such treated aluminum compounds.
Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar.</description><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EFH</sourceid><recordid>eNrjZOAMLk9NLVHwdfTnYWBNS8wpTuWF0twMCm6uIc4euqXFBYklqXklxfHpRYkgysDM3NTA0NzAmAglAFnqHNc</recordid><startdate>20040615</startdate><enddate>20040615</enddate><creator>Hoang, Peter Phung Minh</creator><creator>Jeremic, Dusan</creator><creator>Kearns, Jason Roy</creator><creator>Coulter, Iain McLaren</creator><creator>Donaldson, Robert D</creator><scope>EFH</scope></search><sort><creationdate>20040615</creationdate><title>Sweet MAO</title><author>Hoang, Peter Phung Minh ; Jeremic, Dusan ; Kearns, Jason Roy ; Coulter, Iain McLaren ; Donaldson, Robert D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_067501703</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Hoang, Peter Phung Minh</creatorcontrib><creatorcontrib>Jeremic, Dusan</creatorcontrib><creatorcontrib>Kearns, Jason Roy</creatorcontrib><creatorcontrib>Coulter, Iain McLaren</creatorcontrib><creatorcontrib>Donaldson, Robert D</creatorcontrib><creatorcontrib>Nova Chemicals (International) S.A</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hoang, Peter Phung Minh</au><au>Jeremic, Dusan</au><au>Kearns, Jason Roy</au><au>Coulter, Iain McLaren</au><au>Donaldson, Robert D</au><aucorp>Nova Chemicals (International) S.A</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Sweet MAO</title><date>2004-06-15</date><risdate>2004</risdate><abstract>The present invention relates to activators for polymerization catalysts. More particularly the present invention relates to aluminoxane (or alumoxane or polyaluminum oxide) activators which have been treated with a carbohydrate prior to use as activators for polymerization catalysts such as single site catalysts. The present invention also relates to catalyst systems activated with such treated aluminum compounds and to polymerization processes using such treated aluminum compounds.
Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar.</abstract><oa>free_for_read</oa></addata></record> |
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| title | Sweet MAO |
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