Title:
特定の異性体分布を有するメチレンジフェニルジイソシアナート異性体混合物の製造方法およびそれから得られた新たな生成物
Document Type and Number:
Japanese Patent JP2013537910
Kind Code:
A
Abstract:
The present invention a process and apparatus for the production of methylene diphenyl diisocyanate (MDI) isomer mixtures with a low 2,2′-MDI isomer content and a high 2,4′-MDI isomer content. The resulting mixtures have an increased reactivity and are acceptable in food grade application due to the reduction in primary aromatic amines formed during the curing process. The process and apparatus also include controlling the amount of 4,4′-MDI, which is the most reactive isomer in the mixture allowing use in a wide variety of applications.
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Inventors:
Melenobu, Andrey S.
Jewel, Dennis W.
Gillis, Paul A.
Jan Suma, Gerald Eye.
Bleed, ashley
Anderson, John Joseph
Reed, Daniel Jay.
Jewel, Dennis W.
Gillis, Paul A.
Jan Suma, Gerald Eye.
Bleed, ashley
Anderson, John Joseph
Reed, Daniel Jay.
Application Number:
JP2013530230A
Publication Date:
October 07, 2013
Filing Date:
September 20, 2011
Export Citation:
Assignee:
Dow Global Technologies LLC
International Classes:
C07C263/10; C07C263/18; C07C265/14
Domestic Patent References:
| JP2007532709A | 2007-11-15 | |||
| JP2005225879A | 2005-08-25 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Norio Omori
Yasuhito Suzuki
Norio Omori
Yasuhito Suzuki