IP Library Granted Patent US 7,361,780
Granted Patent B2
US 7,361,780 · App. 10/542,913 · Granted Apr 22, 2008

Apparatus for producing hydroxyalkyl(meth)acrylate and process for producing the same

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Quick Facts
Patent No.
US 7,361,780
App. No.
10/542,913
Granted
Apr 22, 2008
Kind
B2
Abstract

The present invention provides an apparatus for producing hydroxyalkyl(meth)acrylate and method for producing hydroxyalkyl(meth)acrylate, which can maintain high sealing performance even if the maintenance frequency of the blowdown valve is reduced. The apparatus for producing hydroxyalkyl(meth)acrylate of the present invention has a reaction vessel for synthesizing hydroxyalkyl(meth)acrylate, which has a blowdown valve placed in the reaction vessel, and the blowdown valve is opened when discharging contents of the reaction vessel and is a ball valve. The method of producing hydroxyalkyl(meth)acrylate of the present invention involves producing hydroxyalkyl(meth)acrylate using the aforementioned apparatus for producing hydroxyalkyl(meth)acrylate.

Claims (6)

1. A method for producing hydroxyalkyl(meth)acrylate, comprising:

reacting (meth)acrylic acid and an alkylene oxide in a reaction vessel that is equipped with a blowdown ball valve to produce a hydroxyalkyl(meth)acrylate; and

at the conclusion of the reaction, opening the blowdown ball valve in order to discharge the product produced from the reactor.

2. The method of producing hydroxyalkyl(meth)acrylate of claim 1 , wherein the hydroxyalkyl(meth)acrylate is hydroxyethyl(meth)acrylate.

3. The method of producing hydroxyalkyl(meth)acrylate of claim 1 , wherein a conduit is located at the base of the reaction vessel.

4. The method of producing hydroxyalkyl(meth)acrylate of claim 3 , wherein said ball valve is located in said conduit through which the contents of the reaction vessel are discharged.

Assignments (2)
CHANGE OF ADDRESS Recorded Apr 15, 2022
From: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.
To: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.
Reel/Frame 059721/0809 →
CHANGE OF NAME Recorded Sep 5, 2017
From: MITSUBISHI RAYON CO., LTD.
To: MITSUBISHI CHEMICAL CORPORATION
Reel/Frame 043750/0834 →