Title:
MANUFACTURE OF ANTIOXIDANT
Document Type and Number:
Japanese Patent JPS5829731
Kind Code:
A
Abstract:
Small amounts of paraformaldehyde and a carboxylic acid are added to a reaction mixture of trialkylbenzene and 3,5-dialkyl-4-hydroxybenzyl alcohol to thereby increase the yield of the product: trialkyl-tris(3,5-dialkyl-4-hydroxybenzyl)benzene. The reaction catalyst, sulfuric acid or a Friedel-Crafts catalyst, is not adversely affected by the additional ingredients.
Inventors:
JIYOOJI RUISU MINA
Application Number:
JP8029882A
Publication Date:
February 22, 1983
Filing Date:
May 14, 1982
Export Citation:
Assignee:
ETHYL CORP
International Classes:
B01J31/00; C07C27/00; C07C37/16; C09K15/08; C07C39/15; C07C67/00; (IPC1-7): C07C37/16; C07C39/15; C09K15/08
Domestic Patent References:
| JPS54160352A | 1979-12-19 |
Foreign References:
| US3925488A | 1975-12-09 |
Attorney, Agent or Firm:
Hideto Asamura