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:
Feb. 05, 2013
Filed:
May. 27, 2008
Yasushi Ogawa, Yokkaichi, JP;
Shuhei Yada, Tokyo, JP;
Yoshiro Suzuki, Yokkaichi, JP;
Kenji Takasaki, Yokkaichi, JP;
Yukihiro Hasegawa, Tokyo, JP;
Yasushi Ogawa, Yokkaichi, JP;
Shuhei Yada, Tokyo, JP;
Yoshiro Suzuki, Yokkaichi, JP;
Kenji Takasaki, Yokkaichi, JP;
Yukihiro Hasegawa, Tokyo, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
The present invention provides a method for efficiently using an aqueous solution of (meth)acrylic acid at a low concentration formed in a production/storage step of (meth)acrylic acid. In the present invention, a (meth)acrylic acid derivative is produced by using as a raw material an aqueous solution of (meth)acrylic acid formed by one or both of: a device which reduces a pressure of a gas comprising (meth)acrylic acid in production of (meth)acrylic acid; and a device which collects (meth)acrylic acid from a gas comprising (meth)acrylic acid.