Medium density polyethylene compositions
US-9840570-B2 · Dec 12, 2017 · US
Process for preparing polyisobutenes
US9023970B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9023970-B2 |
| Application number | US-201314046159-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 4, 2013 |
| Priority date | Oct 12, 2012 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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Preparation of bifunctional polyisobutenes in which isobutene or an isobutene-containing monomer mixture is polymerized in the presence of a Lewis acid and a compound of the formula I in which X is an acyl radical or the radical of an organic or inorganic acid group, R 1 to R 4 are identical or different and are hydrogen or a hydrocarbon radical.
First claim
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We claim: 1. A process for preparing a bifunctional polyisobutene, comprising polymerizing isobutene or a monomer mixture comprising isobutene in the presence of a Lewis acid and a compound of formula I: wherein X is an acyl radical of formula R 5 CO— or a radical of an organic or inorganic acid group which is covalently bonded to the oxygen atom of the compound (I) w…
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- C08F10/10Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9023970B2 cover?
- Preparation of bifunctional polyisobutenes in which isobutene or an isobutene-containing monomer mixture is polymerized in the presence of a Lewis acid and a compound of the formula I in which X is an acyl radical or the radical of an organic or inorganic acid group, R 1 to R 4 are identical or different and are hydrogen or a hydrocarbon radical.
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C08F10/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 05 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).