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Hyperbranched polyethylenes and a process for making
US8993680B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993680-B2 |
| Application number | US-201213721372-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2012 |
| Priority date | Dec 20, 2012 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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A process for making a hyperbranched polyethylene. The process has the steps of (a) reacting a multifunctional acrylate monomer with an α,ω-diene monomer in the presence of a first catalyst to form an alternating acrylate/diene copolymer and (b) reacting the alternating acrylate/diene copolymer with a late transition metal α-diimine catalyst to form a multi-nuclear initiator for chain walking polymerization of ethylene. There is also a process for forming a multi-nuclear initiator. There is also a hyperbranched polymer.
First claim
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What is claimed is: 1. A process for making a hyperbranched polyethylene, comprising: a) reacting a multifunctional acrylate monomer with a α,ω-diene monomer in the presence of a first catalyst to form an alternating acrylate/diene copolymer; b) reacting the alternating acrylate/diene copolymer with a late transition metal α-diimine catalyst to form a multi-nuclear initiator; and c) reacting the multi-nuclear initiator with ethylene. 2. The process of cl…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8993680B2 cover?
- A process for making a hyperbranched polyethylene. The process has the steps of (a) reacting a multifunctional acrylate monomer with an α,ω-diene monomer in the presence of a first catalyst to form an alternating acrylate/diene copolymer and (b) reacting the alternating acrylate/diene copolymer with a late transition metal α-diimine catalyst to form a multi-nuclear initiator for chain walking p…
- Who is the assignee on this patent?
- Exxonmobil Res & Eng Co
- What technology area does this patent fall under?
- Primary CPC classification C08F110/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 31 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).