Title:
MODIFIED POLYAMINE, MANUFACTURE AND USE FOR POLYURETHANE MANUFACTURE
Document Type and Number:
Japanese Patent JPS5890541
Kind Code:
A
Abstract:
Modified polyamines containing carbamates, urethane and/or urea and/or thiourethane groups and having a primary amine content of from 0.1 to 20.2 wt % are produced by (a) mixing an organic isocyanate with a base in the presence of at least one hydrogen-active compound and water and (b) converting the carbamate, urethane and/or urea and/or thiourethane groups to amino groups. The isocyanate starting material has an isocyanate content of from 0.5 to 40 wt. %. The hydrogen-active compound contains a hydroxy and/or amino and/or thiol group. Water is used in a quantity such that one mol of water is present for each isocyanate equivalent. Conversion to form the amino groups is accomplished by treatment with a proton donor and/or thermal decomposition and/or solvent extraction. The polyamines thus-produced are particularly useful in the production of polyurethanes.
Inventors:
BUERUNAA RASUHOOFUAA
DEIITAA DEIITERITSUHI
DEIITAA DEIITERITSUHI
Application Number:
JP19784682A
Publication Date:
May 30, 1983
Filing Date:
November 12, 1982
Export Citation:
Assignee:
BAYER AG
International Classes:
C08G18/00; C07C67/00; C07C239/00; C07C269/02; C07C275/14; C07C325/00; C07C333/00; C08G18/10; C08G18/50; C08G18/82; C08G18/83; C08G73/00; C08G73/02; (IPC1-7): C07C125/06; C07C127/00; C07C155/00; C08G18/32; C08G73/02
Foreign References:
| DE2948419A1 | 1981-08-13 | |||
| US4532266A | 1985-07-30 |
Attorney, Agent or Firm:
Kazuho Kawarada