Title:
【発明の名称】ロジン酸のヒドロキシジフェニルアミンエステルの製造方法
Document Type and Number:
Japanese Patent JP2825328
Kind Code:
B2
Abstract:
The present invention relates to the preparation of the p-hydroxydiphenylamine ester of rosin acid. The process involves first reacting hydroquinone and aniline in the presence of a bentonite catalyst to form a reaction mixture containing p-hydroxydiphenylamine. To this reaction mixture is added rosin acid under esterification conditions to form the p-hydroxydiphenylamine ester.
Inventors:
ROOSON GIBUSON WAIDOMAN
DENISU JANETSUTO KEISU
DENISU JANETSUTO KEISU
Application Number:
JP23549890A
Publication Date:
November 18, 1998
Filing Date:
September 05, 1990
Export Citation:
Assignee:
GUTSUDOIYAA TAIYA ANDO RABAA CO ZA
International Classes:
B01J27/02; B01J27/06; B01J31/02; C07B61/00; C07C213/02; C07C213/06; C07C215/82; C07C219/34; C09F1/04; B01J21/16; (IPC1-7): C07C219/34; C07C213/06
Domestic Patent References:
| JP60174751A |
Other References:
【文献】米国特許4775496(US,A)
Attorney, Agent or Firm:
Jun Tsuda (2 outside)