Title:
POLYMERIZATION INHIBITOR, COMPOSITION CONTAINING THE SAME AND PROCESS FOR PRODUCING EASILY POLYMERIZABLE COMPOUND WITH THE POLYMERIZATION INHIBITOR
Document Type and Number:
WIPO Patent Application WO/2005/115958
Kind Code:
A1
Abstract:
A polymerization inhibitor capable of efficiently inhibiting the polymerization of an easily polymerizable compound having a polymerizable double bond in its molecule, such as (meth)acrylic acid, a (meth)acrylic ester or styrene; and a process for producing an easily polymerizable compound with the use of the polymerization inhibitor. The polymerization of an easily polymerizable compound during the production processing is inhibited by using a polymerization inhibitor comprising as an active ingredient a naphthol derivative, such as a substituted or unsubstituted alkoxynaphthol, in, for example, the step of distillation of easily polymerizable compound.
Inventors:
TAKASAKI KENJI (JP)
YADA SHUHEI (JP)
KATOU TOMOKAZU (JP)
NUMATA SHIGEAKI (JP)
YADA SHUHEI (JP)
KATOU TOMOKAZU (JP)
NUMATA SHIGEAKI (JP)
Application Number:
PCT/JP2004/014642
Publication Date:
December 08, 2005
Filing Date:
October 05, 2004
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
TAKASAKI KENJI (JP)
YADA SHUHEI (JP)
KATOU TOMOKAZU (JP)
NUMATA SHIGEAKI (JP)
TAKASAKI KENJI (JP)
YADA SHUHEI (JP)
KATOU TOMOKAZU (JP)
NUMATA SHIGEAKI (JP)
International Classes:
C07C43/253; C07C51/50; C07C57/075; C07C67/62; C07C69/54; C09K15/08; (IPC1-7): C07C51/50; C07C57/075; C07C67/62; C07C69/54
Foreign References:
| US3563742A | 1971-02-16 | |||
| EP0297583A2 | 1989-01-04 | |||
| US3563742A | 1971-02-16 |
Other References:
NOBASHI K. ET AL: "Inhibition of vinyl polymerization with extractives from Keyaki wood", MOKUZAI GAKKAISHI, vol. 23, no. 12, 1977, pages 670 - 675, XP002996976
YOKOTA T. ET AL: "The inhibitory effects of extractives prepared from Keyaki heartwood on vinyl polymerizations", MOKUZAI GAKKAISHI, vol. 22, no. 11, 1976, pages 632 - 637, XP002996977
See also references of EP 1749812A4
YOKOTA T. ET AL: "The inhibitory effects of extractives prepared from Keyaki heartwood on vinyl polymerizations", MOKUZAI GAKKAISHI, vol. 22, no. 11, 1976, pages 632 - 637, XP002996977
See also references of EP 1749812A4
Attorney, Agent or Firm:
Kawaguchi, Yoshiyuki (4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, JP)
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