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:
Mar. 13, 2007
Filed:
May. 07, 2004
Shuhei Yada, Mie, JP;
Yasushi Ogawa, Mie, JP;
Yoshiro Suzuki, Mie, JP;
Kimikatsu Jinno, Mie, JP;
Hirochika Hosaka, Mie, JP;
Masayasu Goriki, Mie, JP;
Shuhei Yada, Mie, JP;
Yasushi Ogawa, Mie, JP;
Yoshiro Suzuki, Mie, JP;
Kimikatsu Jinno, Mie, JP;
Hirochika Hosaka, Mie, JP;
Masayasu Goriki, Mie, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A storage tank for an easily polymerizable compound has acceptance piping and delivery piping with a circulation line directly connecting the acceptance piping to the delivery piping or with circulation lines respectively connecting the acceptance piping to the storage tank and the storage tank to the delivery piping. A method of storing an easily polymerizable compound in the storage tank includes circulating the compound in the storage tank through the circulation line(s), where the compound can be (meth)acrylic acid being produced and/or purified with the temperature of purified (meth)acrylic acid being supplied to or removed from the storage tank being regulated to not be higher than the temperature thereof in the tank. A method of joining pipes for-transporting a corrosive liquid using flanges, bolts, and nuts made of a material having resistance to corrosion by the corrosive liquid.