US Patent No: 7,041,841
Number of patents in Portfolio can not be more than 2000
Process for producing crystalline poly-.alpha.-olefins with a monocyclopentadienyl transition metal catalyst system
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May 9, 2006
Issued date -
Nov 9, 1992
filing date -
07/973,261
serial no -
In Force
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Abstract
The invention is a catalytic process using a Group IV B transition metal component and an alumoxane component to polymerize .alpha.-olefins to produce high crystallinity and high molecular weight poly-.alpha.-olefins.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,701,432 Supported polymerization catalyst | 243 | 1986 | |
| 5,026,798 Process for producing crystalline poly-.alpha.-olefins with a monocyclopentadienyl transition metal catalyst system | 292 | 1990 | |
| RE37788 Monocyclopentadienyl metal compounds for ethylene-.alpha.-olefin-copolymer production catalysts | 5 | 1998 | |
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| 4,522,982 Isotactic-stereoblock polymers of alpha-olefins and process for producing the same | 87 | 1983 | |
| 4,530,914 Process and catalyst for producing polyethylene having a broad molecular weight distribution | 297 | 1983 | |
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| 4,794,096 Hafnium metallocene catalyst for the polymerization of olefins | 246 | 1987 | |
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| 4,769,510 Process for the preparation of polyolefins | 154 | 1985 | |
Patent Citation Ranking
Maintenance Fees
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