公开(公告)号：US3859323A

公开(公告)日：1975-01-07

申请号：US81287069

申请日：1969-04-02

Applicant: ALLIED CHEM

Inventor： BAILEY MAURICE E ,  SPAUNBURGH RICHARD G ,  DAVISON RAYMOND B

IPC: C07C265/10 ,  C07C119/04

CPC classification number: C07C265/10

Abstract: A method for preparing 4,4''-methylenebis(cyclohexylisocyanate) from polycycloaliphatic amine residues or acid salts thereof by reaction with phosgene to form a carbamoyl chloride isocyanate reaction product and pyrolyzing said reaction product to obtain 4,4''-methylenebis (cyclohexylisocyanate) therefrom.

公开(公告)号：US3523106A

公开(公告)日：1970-08-04

申请号：US3523106D

申请日：1968-04-11

Applicant: ALLIED CHEM

Inventor： DAVISON RAYMOND B

IPC: C07C265/10 ,  C08G18/16 ,  C08G18/75 ,  C08L75/04 ,  C08G22/18

CPC classification number: C07C265/10 ,  C08G18/166 ,  C08G18/758