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. 22, 2011
Filed:
Sep. 07, 2004
Shuhei Yada, Minato-ku, JP;
Yasushi Ogawa, Yokkaichi, JP;
Yoshiro Suzuki, Yokkaichi, JP;
Kimikatsu Jinno, Yokkaichi, JP;
Shuhei Yada, Minato-ku, JP;
Yasushi Ogawa, Yokkaichi, JP;
Yoshiro Suzuki, Yokkaichi, JP;
Kimikatsu Jinno, Yokkaichi, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A condenser includes: a top face of a tube plate on which acrylic acid may be condensed inside the condenser; a spray for spreading a polymerization inhibitor on the tube plate; a first polymerization inhibitor supply tube for supplying the polymerization inhibitor to the spray; and a supporter for supporting the spray at a predetermined position. The supporter supports the first polymerization inhibitor supply tube outside the condenser. The condenser allows a stable continuous operation for a long period of time by preventing polymerization of an easily polymerizable compound in the condenser into which a vapor of an easily polymerizable compound is supplied with a simple structure thereof.