Methods for terminating olefin polymerizations
US-8940844-B2 · Jan 27, 2015 · US
Methods for terminating olefin polymerizations
US9447204B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9447204-B2 |
| Application number | US-201414566740-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 11, 2014 |
| Priority date | Apr 28, 2011 |
| Publication date | Sep 20, 2016 |
| Grant date | Sep 20, 2016 |
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- Title
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- Abstract
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Abstract
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Catalyst deactivating agents and compositions containing catalyst deactivating agents are disclosed. These catalyst deactivating agents can be used in methods of controlling polymerization reactions, methods of terminating polymerization reactions, methods of operating polymerization reactors, and methods of transitioning between catalyst systems.
First claim
Opening claim text (preview).
We claim: 1. A composition consisting of: a hydrocarbon solvent having from 3 to 18 carbon atoms; and a catalyst deactivating agent comprising a compound having the structure: or a combination thereof. 2. The composition of claim 1 , wherein the hydrocarbon solvent comprises propane, isobutane, n-butane, n-pentane, isopentane, neopentane, n-hexane, heptane, octane, cyclohexane, cycloheptane, methylcyclohexane, methylcycloheptane, benzene, toluene, xylene, ethylbenzene, or a mixture thereof. 3. The composition of claim 2 , wherein a weight ratio of the hydrocarbon solvent to the catalyst deactivating agent is in a range from about 100:1 to about 1:100. 4. The composition of claim 1 , wherein the catalyst deactivating agent comprises: 5. The composition of claim 1 , wherein the catalyst deactivating agent comprises: 6. The composition of claim 1 , wherein the catalyst deactivating agent comprises: 7. The composition of claim 1 , wherein the catalyst deactivating agent comprises: 8. The composition of claim 1 , wherein the hydrocarbon solvent comprises isobutane. 9. The composition of claim 1 , wherein a weight ratio of the hydrocarbon solvent to the catalyst deactivating agent is in a range from about 100:1 to about 1:100.
Assignees
Inventors
Classifications
- C08F6/02Primary
Neutralisation of the polymerisation mass, e.g. killing the catalyst (short-stopping C08F2/42 ){also removal of catalyst residues} · CPC title
- C08F2/42Primary
using short-stopping agents · CPC title
Control or adjustment of polymerization parameters · CPC title
containing oxygen · CPC title
Ethene · CPC title
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Frequently asked questions
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- What does patent US9447204B2 cover?
- Catalyst deactivating agents and compositions containing catalyst deactivating agents are disclosed. These catalyst deactivating agents can be used in methods of controlling polymerization reactions, methods of terminating polymerization reactions, methods of operating polymerization reactors, and methods of transitioning between catalyst systems.
- Who is the assignee on this patent?
- Chevron Phillips Chemical Co Lp
- What technology area does this patent fall under?
- Primary CPC classification C08F6/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 20 2016 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).