Title:
PRODUCTION OF AMINOFORMALDEHYDE RESIN
Document Type and Number:
Japanese Patent JPH05186545
Kind Code:
A
Abstract:
PURPOSE:To obtain an amino resin from normally liquid alcohol, formaldehyde, melamine, etc., by efficiently discharging the formed water out of the system and effecting the shortening of a reaction time and the stabilization of the resin quality by separating and removing the water in the vapor generated in the reactor in a specified manner. CONSTITUTION:A process for producing an amino resin by reacting under heating a normally liquid alcohol (e.g. methanol) with formaldehyde and melamine and/or urea and/or benzoguanamine in the presence of an acid catalyst, wherein the water in the vapor generated in a reactor 1 is separated and removed by using a polymer membrane 5.
Inventors:
FUKUDA HIROSHI
YAMAZAKI MASAFUMI
DOMOTO KAZUMI
OOSHIRO HIROTOSHI
AKAMATSU SHIHO
KAMATA KAZUNORI
YAMAZAKI MASAFUMI
DOMOTO KAZUMI
OOSHIRO HIROTOSHI
AKAMATSU SHIHO
KAMATA KAZUNORI
Application Number:
JP567592A
Publication Date:
July 27, 1993
Filing Date:
January 16, 1992
Export Citation:
Assignee:
MITSUI TOATSU CHEMICALS
International Classes:
C08G12/02; B01J19/18; C08G12/00; C08G85/00; (IPC1-7): C08G12/02