The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2008
Filed:
Jan. 30, 2004
Yoshihiko Satou, Saeki-gun, JP;
Katsunari Shigemune, Otake, JP;
Junichi Doi, Hatsukaichi, JP;
Yasuhiro Kabu, Saeki-gun, JP;
Nobuo Ooya, Osaka, JP;
Yoshihiko Satou, Saeki-gun, JP;
Katsunari Shigemune, Otake, JP;
Junichi Doi, Hatsukaichi, JP;
Yasuhiro Kabu, Saeki-gun, JP;
Nobuo Ooya, Osaka, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Osaka Organic Chemical Ind., Ltd., Osaka-shi, JP;
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.