PRODUCT 1,3-BUTYLENE GLYCOL

To provide a product 1,3-butylene glycol which reduces skin sensitization and prevents coloring under a basic condition.SOLUTION: There is provided a product 1,3-butylene glycol, wherein in gas chromatography analysis under a specific condition, when a relative retention time of n-dodecane is 1.00,...

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Main Authors SHIROMURA TAKASHI, KANEDA JUN, MAEDA MIKI
Format Patent
LanguageEnglish
Japanese
Published 21.03.2024
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Abstract To provide a product 1,3-butylene glycol which reduces skin sensitization and prevents coloring under a basic condition.SOLUTION: There is provided a product 1,3-butylene glycol, wherein in gas chromatography analysis under a specific condition, when a relative retention time of n-dodecane is 1.00, among peaks appearing in a range of the relative retention time of 0.80 to 0.99, the sum of n-dodecane conversion concentration of a peak excluding a peak of an acetal body of methyl ethyl ketone and 1,3-butylene glycol exceeds 0 mass ppm and 25 mass ppm or less, and the sum of n-dodecane conversion concentration of a peak of 2-ethyl crotonaldehyde, and a peak of an acetal body of n-butylaldehyde and 1,3-butylene glycol exceeds 0 mass ppm and 20 mass ppm or less, and in gas chromatography analysis under a specific condition, an area ratio of the peak of the 1,3-butylene glycol is 99.5% or more.SELECTED DRAWING: None 【課題】皮膚感作性が低減され、塩基性条件下での着色も生じにくい製品1,3-ブチレングリコールを提供する。【解決手段】特定条件下のガスクロマトグラフィー分析において、n-ドデカンの相対保持時間を1.00としたときに、相対保持時間が0.80~0.99の範囲に現れるピークのうち、メチルエチルケトンと1,3-ブチレングリコールとのアセタール体のピークを除いたピークのn-ドデカン換算濃度の和が0質量ppm超25質量ppm以下であり、かつ、2-エチルクロトンアルデヒドのピーク、及びn-ブチルアルデヒドと1,3-ブチレングリコールとのアセタール体のピークのn-ドデカン換算濃度の和が0質量ppm超20質量ppm以下であり、特定条件のガスクロマトグラフィー分析において、1,3-ブチレングリコールのピークの面積率が99.5%以上である、製品1,3-ブチレングリコール組成物とする。【選択図】なし
AbstractList To provide a product 1,3-butylene glycol which reduces skin sensitization and prevents coloring under a basic condition.SOLUTION: There is provided a product 1,3-butylene glycol, wherein in gas chromatography analysis under a specific condition, when a relative retention time of n-dodecane is 1.00, among peaks appearing in a range of the relative retention time of 0.80 to 0.99, the sum of n-dodecane conversion concentration of a peak excluding a peak of an acetal body of methyl ethyl ketone and 1,3-butylene glycol exceeds 0 mass ppm and 25 mass ppm or less, and the sum of n-dodecane conversion concentration of a peak of 2-ethyl crotonaldehyde, and a peak of an acetal body of n-butylaldehyde and 1,3-butylene glycol exceeds 0 mass ppm and 20 mass ppm or less, and in gas chromatography analysis under a specific condition, an area ratio of the peak of the 1,3-butylene glycol is 99.5% or more.SELECTED DRAWING: None 【課題】皮膚感作性が低減され、塩基性条件下での着色も生じにくい製品1,3-ブチレングリコールを提供する。【解決手段】特定条件下のガスクロマトグラフィー分析において、n-ドデカンの相対保持時間を1.00としたときに、相対保持時間が0.80~0.99の範囲に現れるピークのうち、メチルエチルケトンと1,3-ブチレングリコールとのアセタール体のピークを除いたピークのn-ドデカン換算濃度の和が0質量ppm超25質量ppm以下であり、かつ、2-エチルクロトンアルデヒドのピーク、及びn-ブチルアルデヒドと1,3-ブチレングリコールとのアセタール体のピークのn-ドデカン換算濃度の和が0質量ppm超20質量ppm以下であり、特定条件のガスクロマトグラフィー分析において、1,3-ブチレングリコールのピークの面積率が99.5%以上である、製品1,3-ブチレングリコール組成物とする。【選択図】なし
Author KANEDA JUN
SHIROMURA TAKASHI
MAEDA MIKI
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Snippet To provide a product 1,3-butylene glycol which reduces skin sensitization and prevents coloring under a basic condition.SOLUTION: There is provided a product...
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CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Title PRODUCT 1,3-BUTYLENE GLYCOL
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