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Title:
METHOD FOR PRODUCING TETRAKIS[METHYLENE-3-(3',5'-TERT-BUTYL-4'-HYDROXYPHENYL)PROPIONATE]METHANE
Document Type and Number:
WIPO Patent Application WO/2023/210589
Kind Code:
A1
Abstract:
Provided is a method for producing a tetrakis[methylene-3-(3',5'-tert-butyl-4'-hydroxyphenyl)propionate]methane having good properties.　In a process for crystallizing, by means of a crystallization solvent, a crude product including tetrakis[methylene-3-(3',5'-tert-butyl-4'-hydroxyphenyl)propionate]methane and 3-(3',5'-tert-butyl-4'-hydroxyphenyl)propionate alkyl, the amount of the 3-(3',5'-tert-butyl-4'-hydroxyphenyl)propionate alkyl contained in the crude product is 1-7 parts by mass with respect to 100 parts by mass of the tetrakis[methylene-3-(3',5'-tert-butyl-4'-hydroxyphenyl)propionate]methane contained in the crude product.

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Inventors:
WATANABE KENICHI (JP)
YAMANOUCHI NOBUHIKO (JP)
YAMAMOTO NAOKI (JP)
Application Number:
PCT/JP2023/016136
Publication Date:
November 02, 2023
Filing Date:
April 24, 2023
Export Citation:
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Assignee:
ADEKA CORP (JP)
International Classes:
C07C67/52; C07C69/732
Domestic Patent References:
WO1989009202A11989-10-05
WO1988005773A11988-08-11
Foreign References:
JPH0840984A1996-02-13
JPH06128195A1994-05-10
JPH0648988A1994-02-22
JPH03284652A1991-12-16
JPH0311038A1991-01-18
JPS62258343A1987-11-10
JPS62201846A1987-09-05
JPS5699444A1981-08-10
Attorney, Agent or Firm:
HONDA Ichiro (JP)
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