Catalysts for control of long chain branching
US-10538604-B2 · Jan 21, 2020 · US
Catalysts for control of long chain branching
US10975174B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10975174-B2 |
| Application number | US-201916526673-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2019 |
| Priority date | Apr 17, 2015 |
| Publication date | Apr 13, 2021 |
| Grant date | Apr 13, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Catalyst systems and methods for making and using the same are disclosed. A catalyst composition is provided that includes a catalyst compound supported to form a supported catalyst system, the catalyst compound including: where each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and X are as discussed herein.
First claim
Opening claim text (preview).
What is claimed is: 1. A catalyst composition comprising a catalyst compound supported to form a supported catalyst system, wherein the catalyst compound comprises: wherein Each X is independently a leaving group selected from a halogen, a labile hydrocarbyl, a substituted hydrocarbyl, or a heteroatom group. 2. The catalyst composition of claim 1 , comprising an activator comprising an acid derived from a coordinating anion. 3. The catalyst composition of claim 1 , comprising an activator of an aluminoxane compound, an organoboron compound, an organoaluminum compound or combinations thereof. 4. The catalyst composition of claim 3 , wherein the activator comprises methyl aluminoxane or modified methylauminoxane. 5. The catalyst composition of claim 1 , comprising a support comprising a mineral, a clay, a metal oxide, a metalloid oxide, a mixed metal oxide, a mixed metalloid oxide, a mixed metal-metalloid oxide, a polymer, or any combinations thereof. 6. The catalyst composition of claim 5 , wherein the support is a polyolefin. 7. The catalyst composition of claim 5 , wherein the support has been thermally treated and/or chemically treated with an acid, an organoaluminum compound, or a fluoriding agent, or any combinations thereof. 8. The catalyst composition of claim 5 , wherein the support has been thermally treated. 9. The catalyst composition of claim 5 , wherein the support comprises silica, alumina, aluminosilicate, titanated silica, or titanated alumina, or any combinations thereof. 10. The catalyst composition of claim 1 , comprising a silica support and a methyl aluminoxane activator.
Assignees
Inventors
Classifications
- C08J5/18Primary
Manufacture of films or sheets · CPC title
Monomers containing five or more carbon atoms · CPC title
Cyclic compounds, e.g. cyclopentadienyls · CPC title
- C08F10/00Primary
Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond · CPC title
Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10975174B2 cover?
- Catalyst systems and methods for making and using the same are disclosed. A catalyst composition is provided that includes a catalyst compound supported to form a supported catalyst system, the catalyst compound including: where each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and X are as discussed herein.
- Who is the assignee on this patent?
- Univation Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).