Method for producing hydrogenated conjugated diene polymer
US-2015368387-A1 · Dec 24, 2015 · US
Process for producing hydrogenated petroleum resin
US9023944B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9023944-B2 |
| Application number | US-201214116262-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2012 |
| Priority date | Jun 1, 2011 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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A method including measuring a near-infrared absorption spectrum of a hydrogenated compound in the form of a molten resin from which a hydrogenation solvent is separated to calculate an aromatic content ratio and a softening point as physical property values of the hydrogenated compound based on analytical curve data. At least one of a temperature, pressure, reaction time and hydrogen content in a hydrogenating portion is controlled such that a difference between the aromatic content ratio and the bromine number measured in the near-infrared spectrometry and an aromatic content ratio and bromine number of a target hydrogenated petroleum resin pellet becomes small.
First claim
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The invention claimed is: 1. A method for producing a hydrogenated petroleum resin, comprising: thermally polymerizing a cyclopentadiene compound and a vinyl aromatic compound to obtain a copolymer; adding hydrogen to the copolymer to obtain a hydrogenated product; separating a hydrogenation solvent from the hydrogenated product using a first evaporator; separating, using a second evaporator, a remaining amount of the hydrogenation solvent and a low molecular weight componen…
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Chemistry & Metallurgy · mapped topic
- C08F8/04Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US9023944B2 cover?
- A method including measuring a near-infrared absorption spectrum of a hydrogenated compound in the form of a molten resin from which a hydrogenation solvent is separated to calculate an aromatic content ratio and a softening point as physical property values of the hydrogenated compound based on analytical curve data. At least one of a temperature, pressure, reaction time and hydrogen content i…
- Who is the assignee on this patent?
- Hayashi Takanori, Takasugi Hajime, Kashima Makoto, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C08F8/04. 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).