Title:
PRODUCTION OF HIGHLY POLYMERIZABLE MONOMER
Document Type and Number:
Japanese Patent JPH08134029
Kind Code:
A
Abstract:
PURPOSE: To provide a method for readily and efficiently producing high purity N-vinylcarboxylic amide having good polymerizable property.
CONSTITUTION: When N-vinylcarboxylic amide is produced by thermal decomposition or catalytic decomposition of a crude N-(1-alkoxyethyl)carboxylic amide or a crude ethylidenebiscarboxylic amide, N-vinylcarboxylic amide content in the crude N (1-alkoxyethyl)carboxylic amide or the crude ethylidenebiscarboxylic amide is kept to ≥10wt.% or pH of 33wt.% aqueous solution of the crude N-(1-alkoxyethyl)carboxylic amide or the crude ethylidenebiscarboxylic amide is adjusted so as to be 5-10 to produce the objective N-vinylcarboxylic amide having good polymerizable property.
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Inventors:
NAKAMURA HITOSHI
NAGAMATSU SHUNICHI
KUDO TETSUO
TEJIMA TAKEHIKO
AIZAWA TOSHIYUKI
NAGAMATSU SHUNICHI
KUDO TETSUO
TEJIMA TAKEHIKO
AIZAWA TOSHIYUKI
Application Number:
JP27527894A
Publication Date:
May 28, 1996
Filing Date:
November 09, 1994
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
C07C231/08; C07C231/12; C07C233/02; C07C233/05; C08F26/00; C08F26/02; (IPC1-7): C07C233/02; C07C231/08; C07C233/05; C08F26/02
Attorney, Agent or Firm:
Yaguchi flat
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