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Title:
【発明の名称】ケテン二量化時における重合体の生成を抑制する方法
Document Type and Number:
Japanese Patent JP2805930
Kind Code:
B2
Abstract:
The polymer portion in the production of diketene by the dimerization of ketene obtained from acetic acid by pyrolysis is reduced by the addition of sulfur dioxide to the ketene gas or to the reaction medium.

More Like This:
WO/2018/200471SYSTEMS AND PROCESSES FOR THERMOLYSIS OF POLYLACTONES TO PRODUCE ORGANIC ACIDS
Inventors:
Renzo Bergamine
Wilhelm Kwittmann
Joseph Stoffel
Application Number:
JP33886489A
Publication Date:
September 30, 1998
Filing Date:
December 28, 1989
Export Citation:
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Assignee:
LONZA LIMITED
International Classes:
C07D305/12; C07B61/00; C07C45/68; C07C45/88; C07C45/89; C07C45/90; C07C49/88; C07D315/00; (IPC1-7): C07D305/12
Attorney, Agent or Firm:
Sou Suga



 
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