Title:
【発明の名称】純粋なイソシアネートの製造方法
Document Type and Number:
Japanese Patent JP2916846
Kind Code:
B2
Abstract:
The invention relates to a process for preparing pure distilled isocyanates by reaction of the corresponding amines with phosgene in a suitable solvent and multi-stage distillative treatment to give pure isocyanates, pure solvent and a proportion of residue, this residue being treated.
Inventors:
JAUIERU KARUO ARIBASU
SHIRIAKO DOMINGO ARIBASU
SARUADOORU UIDARU RODORIGEZU
SHIRIAKO DOMINGO ARIBASU
SARUADOORU UIDARU RODORIGEZU
Application Number:
JP35547092A
Publication Date:
July 05, 1999
Filing Date:
December 21, 1992
Export Citation:
Assignee:
BAIERU AG
International Classes:
C07C263/10; C07C263/20; C07C265/04; C07C265/14; (IPC1-7): C07C265/14; C07C263/10; C07C263/20
Other References:
【文献】米国特許2889257(US,A)
Attorney, Agent or Firm:
Kawahara Kazuho