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Title:
ジフェニルメタン系ジイソシアネート異性体の異なる混合物を同時に製造する方法
Document Type and Number:
Japanese Patent JP5590570
Kind Code:
B2
Abstract:
Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4'-MDI and 2,4'-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to produce simultaneously two mixed diisocyanate streams [MIy and MIz] wherein x is 8 to 20, y is 1 to 3 and z is 20 to 40 where x, y and z are percentages by weight of the 4,4'-diphenylmethane diisocyanate isomer contained in the diphenylmethane diisocyanate isomer mixture.

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Inventors:
A period of treatment, the John low デウェイク
ゼイル, Adolf Dern
A car, Robert Henry
Application Number:
JP2011529549A
Publication Date:
September 17, 2014
Filing Date:
October 01, 2009
Export Citation:
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Assignee:
Huntsman International LLC
International Classes:
C07C263/20; C07C265/14
Attorney, Agent or Firm:
Ono Shinjiro
Kobayashi 泰
Shigeo Takeuchi
Yamamoto 修
Mitsutoshi Nakamura



 
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