Title:
高純度のオルト-ジヒドロキシベンジル化合物の液体組成物の製造方法及び該組成物
Document Type and Number:
Japanese Patent JP4782379
Kind Code:
B2
Abstract:
The invention relates to a process for the preparation of a liquid composition of an ortho-dihydroxybenzyl compound of high purity characterized in that it consists in purifying the initial ortho-dihydroxybenzyl compound by distillation and recovering the condensed ortho-dihydroxybenzyl compound in an apparatus resistant to corrosion by the latter, and then mixing it with an organic solvent in a storage tank which is lined or made of a material which does not lead to metallic pollution. The invention also relates to a liquid composition of an ortho-dihydroxybenzyl compound of high purity comprising said compound and an organic solvent of said compound obtained according to said process.
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Inventors:
Mathieu, Claude
Application Number:
JP2003567848A
Publication Date:
September 28, 2011
Filing Date:
February 17, 2003
Export Citation:
Assignee:
Rodia Simi
International Classes:
C07C37/74; C11D7/26; C07C37/88; C07C39/08; C07C39/28; C07C41/42; C07C43/23; C07C45/82; C07C47/565; C11D7/32; C11D7/50
Domestic Patent References:
| JP2000327613A | 2000-11-28 | |||
| JP2001228635A | 2001-08-24 |
Foreign References:
| WO2003068713A1 |
Attorney, Agent or Firm:
Kawaguchi International Patent Office