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Poly(phenylene ether) copolymer and method of making
US9018342B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9018342-B2 |
| Application number | US-201213881480-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 27, 2012 |
| Priority date | Apr 25, 2012 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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A poly(phenylene ether) copolymer comprises about 5 to 40 mole percent repeat units derived from 2-phenylphenol and 60 to about 95 mole percent repeat units derived from 2,6-dimethylphenol, wherein the poly(phenylene ether) copolymer has a weight average molecular weight of at least 8,000 atomic mass units, as measured by gel permeation chromatography. A method of preparing the poly(phenylene ether) copolymer, comprises oxidatively copolymerizing a monomer mixture comprising about 5 to 40 mole percent 2-phenylphenol and about 60 to about 95 mole percent 2,6-dimethylphenol in the presence of a solvent, molecular oxygen, and a polymerization catalyst comprising a metal ion and at least one amine ligand to form a solution of the poly(phenylene ether) copolymer in the solvent, wherein a ratio of total moles of 2-phenylphenol and 2,6-dimethylphenol to moles of metal ion is about 10:1 to about 1200:1.
First claim
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The invention claimed is: 1. A poly(phenylene ether) copolymer comprising about 5 to 40 mole percent repeat units derived from 2-phenylphenol and 60 to about 95 mole percent repeat units derived from 2,6-dimethylphenol, wherein the poly(phenylene ether) copolymer has a weight average molecular weight of 8,000 to about 200,000 atomic mass units, as measured by gel permeation chromatography; and wherein the poly(phenylene ether) copolymer comprises: a mole percent of 2-phenylphen…
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- What does patent US9018342B2 cover?
- A poly(phenylene ether) copolymer comprises about 5 to 40 mole percent repeat units derived from 2-phenylphenol and 60 to about 95 mole percent repeat units derived from 2,6-dimethylphenol, wherein the poly(phenylene ether) copolymer has a weight average molecular weight of at least 8,000 atomic mass units, as measured by gel permeation chromatography. A method of preparing the poly(phenylene e…
- Who is the assignee on this patent?
- Carrillo Alvaro, Fisher Scott Michael, Guo Hua, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C08G65/38. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 28 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).