Chromium(iii) silicate catalysts suitable for pe synthesis
US-2016168283-A1 · Jun 16, 2016 · US
Chromium-based olefin polymerization catalysts
US11059916B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11059916-B2 |
| Application number | US-201715791088-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 23, 2017 |
| Priority date | Dec 7, 2016 |
| Publication date | Jul 13, 2021 |
| Grant date | Jul 13, 2021 |
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- Title
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Abstract
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This invention relates to a catalyst compound for an olefin polymerization catalyst system represented by the formula: where each T is independently O, S, or N, each Q is independently C or Si; each R 1 , R 2 , and R 3 is a substituted C 1 to C 40 hydrocarbyl group, a C 1 to C 40 hydrocarbyl group, or a substituted heteroatom, provided that the sum of the molecular volume of R 1 , R 2 , and R 3 is greater than or equal to two times the molecular volume of an isopropyl group.
First claim
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What is claimed is: 1. A catalyst compound comprising Cr(OCPh(t-Bu) 2 ) 3 .
Assignees
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Classifications
- C08F210/16Primary
Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title
- C08F4/69Primary
Chromium, molybdenum, tungsten or compounds thereof · CPC title
of chromium, molybdenum or tungsten · CPC title
compounds without a metal-carbon linkage · CPC title
Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title
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- What does patent US11059916B2 cover?
- This invention relates to a catalyst compound for an olefin polymerization catalyst system represented by the formula: where each T is independently O, S, or N, each Q is independently C or Si; each R 1 , R 2 , and R 3 is a substituted C 1 to C 40 hydrocarbyl group, a C 1 to C 40 hydrocarbyl group, or a substituted heteroatom, provided that the sum of the molecul…
- Who is the assignee on this patent?
- Exxonmobil Chemical Patents Inc
- What technology area does this patent fall under?
- Primary CPC classification C08F210/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 13 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).