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Method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and method for producing glycidyl (meth)acrylate
US10087159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10087159-B2 |
| Application number | US-201515509558-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 4, 2015 |
| Priority date | Sep 22, 2014 |
| Publication date | Oct 2, 2018 |
| Grant date | Oct 2, 2018 |
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Abstract
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To reduce formation of side products and to enhance a selectivity rate in a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and in a method for producing glycidyl (meth)acrylate. The present invention is characterized by a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate through a reaction of (meth)acrylic acid and epichlorohydrin; more specifically, the reaction is carried out by using 0.5 to 2 mol of epichlorohydrin relative to 1 mol of (meth)acrylic acid, and by adding epichlorohydrin to (meth)acrylic acid in the presence of a catalyst. Also, the present invention is characterized by a method for producing glycidyl (meth)acrylate through a reaction of 3-chloro-2-hydroxypropyl (meth)acrylate and a basic carbonate compound in a polar solvent.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing glycidyl (meth)acrylate, comprising: (1) a step of dropping epichlorohydrin into (meth)acrylic acid in the presence of a catalyst to provide 3-chloro-2-hydroxypropyl (meth)acrylate, where 0.5 to 2 mol of the epichlorohydrin is reacted per 1 mol of the (meth)acrylic acid; and (2) a step for producing glycidyl (meth)acrylate by reacting the 3-chloro-2-hydroxypropyl (meth)acrylate with a basic carbonate compound in a polar solvent. 2. The method for producing glycidyl (meth)acrylate according to claim 1 , wherein the polar solvent is an alcohol. 3. The method for producing glycidyl (meth)acrylate according to claim 2 , wherein the alcohol is a C1-C10 aliphatic hydrocarbon alcohol. 4. The method for producing glycidyl (meth)acrylate according to claim 2 , wherein the alcohol is at least one kind selected from the group consisting of 1-propanol, 2-propanol, 1-butanol, 2-butanol and t-butanol. 5. The method for producing glycidyl (meth)acrylate according to claim 1 , wherein the basic carbonate compound comprises a Group 1 or Group 2 metal. 6. The method for producing glycidyl (meth)acrylate according to claim 1 , wherein the basic carbonate compound is at least one kind selected from the group consisting of potassium carbonate, rubidium carbonate and cesium carbonate. 7. The method for producing glycidyl (meth)acrylate according to claim 5 , wherein the basic carbonate compound is at least one kind selected from the group consisting of potassium carbonate, rubidium carbonate and cesium carbonate.
Assignees
Inventors
Classifications
by reaction with carboxyl radicals · CPC title
by esterified hydroxyl radicals · CPC title
- C07C67/26Primary
with an oxirane ring · CPC title
- C07D301/16Primary
formed in situ, e.g. from carboxylic acids and hydrogen peroxide · CPC title
Quaternary ammonium compounds · CPC title
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- What does patent US10087159B2 cover?
- To reduce formation of side products and to enhance a selectivity rate in a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and in a method for producing glycidyl (meth)acrylate. The present invention is characterized by a method for producing 3-chloro-2-hydroxypropyl (meth)acrylate through a reaction of (meth)acrylic acid and epichlorohydrin; more specifically, the reaction …
- Who is the assignee on this patent?
- Mitsubishi Rayon Co, Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification C07C67/26. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 02 2018 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).