Title:
【発明の名称】気相中での芳香族ポリイソシアネート化合物の製造方法
Document Type and Number:
Japanese Patent JP2805459
Kind Code:
B2
Abstract:
Prepn. of aromatic cpds. substd. by at least two isocyanate gps., where at least one cpd. (A) (comprising at least two prim. amine functions and at least one aromatic residue) is contacted with phosgene - in the vapour phase, using a 0-100% (pref. 5-60) excess of phosgene relative to the number of moles of functional amine gps.. Pref. the cpd. (A) comprises at least two amine functions and at least one 6-14C (more pref. 6-10C) aromatic residue opt. substd. by one or more hydrocarbyl radicals chosen from 1-10C (more pref. 1-6C) alkyl, aryl, alkyl-aryl or aryl-alkyl. The cpd. corresps. to the formula H2N-R-NH2 (I); where R = aromatic gp. (opt. substd.) as described above. More specifically, A is chosen from toluene diamine, xylylene-diamine and phenylene-diamine (singly or mixed) with or without isomers.
More Like This:
Inventors:
Jerome Armand
Henri Cialeri
Doni Ruberan
Pascal Baku
Henri Cialeri
Doni Ruberan
Pascal Baku
Application Number:
JP22611795A
Publication Date:
September 30, 1998
Filing Date:
August 11, 1995
Export Citation:
Assignee:
Rhone-Poulin stain
International Classes:
C07C263/10; C07C265/12; C07B43/10; C07C265/14; (IPC1-7): C07C265/14; C07C263/10
Domestic Patent References:
| JP7278089A | ||||
| JP63303961A | ||||
| JP63280050A |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)