Title:
ジフェニルメタンジイソシアネート及びポリフェニルポリメチレンポリイソシアネートの混合物の製造法
Document Type and Number:
Japanese Patent JP2010529064
Kind Code:
A
Abstract:
The present invention relates to a process for preparing mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates by sequential reaction of benzene to nitrobenzene to aniline to polyphenyl polymethylene polyamines wherein the benzene used as the starting material contains 500 to 5000 ppm w/w toluene and/or xylenes.
More Like This:
Inventors:
Car, robert
Van vicken, nicholas
Van vicken, nicholas
Application Number:
JP2010510717A
Publication Date:
August 26, 2010
Filing Date:
April 25, 2008
Export Citation:
Assignee:
Huntsman International LLC
International Classes:
C07C263/10; C07C265/14
Domestic Patent References:
| JPH05163167A | 1993-06-29 |
Foreign References:
| WO2006095761A1 | 2006-09-14 |
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hiroaki Noya
Mitsutoshi Nakamura
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hiroaki Noya
Mitsutoshi Nakamura