Title:
【発明の名称】同時的なエポキシ化および触媒残留物の抽出
Document Type and Number:
Japanese Patent JPH11506483
Kind Code:
A
Abstract:
A process for the concurrent epoxidation of, and catalyst residue extraction from, anionically polymerized diene-containing polymers which have been hydrogenated using a Group VIII metal catalyst, said process comprising: (a) introducing a catalyst residue-containing diene-containing polymer cement into a reactor, (b) heating the polymer cement to a temperature of 25 DEG to 65 DEG C., (c) contacting the polymer cement with a caustic solution, (d) contacting the polymer cement with a peracid solution, (e) mixing the polymer, caustic, and acid at 25 DEG to 65 DEG C. for +E,fra 1/2+EE to 3 hours, (f) optionally adding sufficient caustic solution to neutralize excess acid while continuing the mixing, (g) adding sufficient water such that the aqueous/organic phase weight ratio is from 0.2:1 to 1:1 while continuing the mixing, (h) allowing the phases to settle for 5 to 90 minutes, (i) removing the aqueous phase from the reactor, (j) optionally repeating steps (g), (h), and (i) until the catalyst residue contents are less than 10 ppm, and (k) removing the polymer cement from the reactor and removing the solvent to recover the epoxidized polymer.
Inventors:
Ericsson, The James Robert
Lao, Buscar Peachera
Stevens, Craig Aldredd
Bees, Cary Alan
Lao, Buscar Peachera
Stevens, Craig Aldredd
Bees, Cary Alan
Application Number:
JP53456996A
Publication Date:
June 08, 1999
Filing Date:
May 15, 1996
Export Citation:
Assignee:
Ciel International Research Mart Shats Pay BV
International Classes:
C08C2/04; C08C19/06; C08F8/08; (IPC1-7): C08F8/08; C08C19/06
Attorney, Agent or Firm:
Yoshio Kawaguchi (1 person outside)