Title:
BIS(HYDROXYBENZYL)BENZENE COMPOUND, ITS EPOXY RESIN AND THEIR PRODUCTION
Document Type and Number:
Japanese Patent JP3897366
Kind Code:
B2
Abstract:
PURPOSE: To obtain a bis(hydroxybenzyl)benzene compound useful e.g. as a curing agent for polyester, epoxy resin, etc., in high purity and yield by reacting a phenolic compound with an aralkyl compound in the presence of an acid catalyst, removing the acid catalyst from the product and distilling the product in vacuum.
CONSTITUTION: This bis(hydroxybenzyl)benzene compound of formula III can be produced by reacting phenol or cresol with an aralkyl compound of formula I (X is a halogen, OH or a 1-4C alkoxy) (e.g. α,α-dichloroxylene) in the presence of an acid catalyst such as hydrochloric acid or formic acid to obtain a phenolic aralkyl resin composition of formula II (R is H or methyl; (n) is 0-50), removing or inactivating the acid catalyst in the composition and purifying the composition by vacuum distillation.
Inventors:
Keizaburo Yamaguchi
Tatsunobu Urakami
Yuko Ishihara
Akihiro Yamaguchi
Tatsunobu Urakami
Yuko Ishihara
Akihiro Yamaguchi
Application Number:
JP32594A
Publication Date:
March 22, 2007
Filing Date:
January 06, 1994
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
B01J31/02; C07C39/15; C07B61/00; C07C37/52; C08G59/06; C08G83/00; C08G61/02; (IPC1-7): C07C39/15; B01J31/02; C07C37/52; C08G59/06; C08G83/00; //C07B61/00
Domestic Patent References:
| JP5097967A |
Foreign References:
| US4996270 |