Title:
TRISPHENOL METHANES, METHOD FOR PRODUCING SAME AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/111563
Kind Code:
A1
Abstract:
Provided are low color trisphenol methanes, method for producing the same and use thereof. When reacting phenols with aromatic hydroxy aldehydes under acid catalysis and heat, the reaction is performed at a temperature of 100°C or less from the start of the reaction until the reaction rate reaches 90%, after which the temperature is raised and the reaction is performed at over 100°C and 130°C or less in order to produce the trisphenol methanes. Thus, trisphenol methanes with a Gardner color scale of 9 or less (as a 0.5 mass% THF solution), and a low color epoxy resin can be obtained.
Inventors:
TAKEMURA KAZUYA (JP)
Application Number:
PCT/JP2013/000269
Publication Date:
August 01, 2013
Filing Date:
January 22, 2013
Export Citation:
Assignee:
JFE CHEMICAL CORP (JP)
International Classes:
C07C29/32; C07C39/16; C08G59/06; C07B61/00
Foreign References:
| JPH10218815A | 1998-08-18 | |||
| JP2008184417A | 2008-08-14 | |||
| JPS6483035A | 1989-03-28 |
Attorney, Agent or Firm:
KUMASAKA, Akira et al. (JP)
Akira Kumasaka (JP)
Akira Kumasaka (JP)
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Claims: