Title:
ビニルカルボン酸アミド単位を含有する重合体を加水分解する方法
Document Type and Number:
Japanese Patent JP2012507618
Kind Code:
A
Abstract:
A process for the hydrolysis of polymers comprising vinylcarboxamide units by heating polymers comprising vinylcarboxamide units in an aqueous medium in the presence of acids or bases, wherein an aqueous solution or dispersion of a polymer comprising vinylcarboxamide units and an aqueous solution or a base or acid are fed continuously to a tubular reactor at elevated pressure, from 0.05 to less than one equivalent of a base or acid being used per vinylcarboxamide equivalent and the mixture being passed through the tubular reactor at a temperature of >100° C. to 250° C., depressurized and cooled.
Inventors:
Manfred Winter
Hagen weigl
Hans-Joachim Henle
Andreas Kramer
Hagen weigl
Hans-Joachim Henle
Andreas Kramer
Application Number:
JP2011535082A
Publication Date:
March 29, 2012
Filing Date:
November 02, 2009
Export Citation:
Assignee:
BASF SE
International Classes:
C08F26/02; C08F8/12
Domestic Patent References:
| JP2002161110A | 2002-06-04 | |||
| JPS5823809A | 1983-02-12 | |||
| JP2002145926A | 2002-05-22 | |||
| JP2001031717A | 2001-02-06 | |||
| JPH10501561A | 1998-02-10 |
Attorney, Agent or Firm:
Takuya Kuno
Toshio Yano
Takahashi
Kiyoshi Kuruma
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard
Toshio Yano
Takahashi
Kiyoshi Kuruma
Kimihiro Hoshi
Hiroyasu Ninomiya
Ryoichi Shino
Einzel Felix-Reinhard