Title:
副産物が減じられた高固形分ポリアミン-エピハロヒドリン組成物
Document Type and Number:
Japanese Patent JP4266635
Kind Code:
B2
Abstract:
A process for rendering a polyamine-epihalohydrin resin storage stable, is described. The process entails treating a polyamine-epihalohydrin resin composition, where the resin is formed in a reaction having a molar ratio of epihalohydrin to secondary amine group of less than about 0.5 and where the composition has a solids content of at least 15 wt % and includes CPD-forming species, with at least one enzymatic agent under conditions to inhibit, reduce or remove the CPD-forming species to obtain a gelation storage stable reduced CPD-forming resin so that the composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 24 hours at 50° C. and a pH of about 1.0 releases less than about 100 ppm dry basis of CPD.
Inventors:
Lille, Richard Jay
Ronald Bushing
Belli, Massimo
Stevelus, Wim
Ronald Bushing
Belli, Massimo
Stevelus, Wim
Application Number:
JP2002552049A
Publication Date:
May 20, 2009
Filing Date:
December 07, 2001
Export Citation:
Assignee:
HERCULES INCORPORATED
International Classes:
C12N9/00; D21H17/56; C08G73/02; C08G73/06; C12N9/14; C12N9/16; C12N9/52; C12N9/54; C12S99/00; D21H17/54; D21H21/20
Domestic Patent References:
| JP5130879A | ||||
| JP11508765A | ||||
| JP2001527145A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hiroaki Noya
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hiroaki Noya