Patent · US Expired

Production of elastic, compact or cellular moldings based on elastomers containing N-benzylurea groups in bound form, elastomers of this type, and N-benzylpolyoxyalkylene-polyamines which are suitable for this purpose

US5153235A · kind A · utility

3Cited by

1References

3Claims

0Family size

Assignee

BASF SE

Inventors

Johannes Becker · Pfaffenhofen an der Ilm, DE
Guenther Matzke · Heidelberg, DE
Hans U. Schmidt · Griesheim, DE
Willibald Schoenleben

Key dates

Filing date	Jan 24, 1992
Grant date	Oct 6, 1992
Priority date	—
Expiry date	Jan 24, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2120/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of elastic, compact or cellular moldings based on elastomers containing N-benzylurea groups in bound form, by reacting PA1 a) one or more organic and/or modified organic polyisocyanates with PA1 b) N-benzylpolyoxyalkylene-polyamines or mixtures of N-benzylpolyoxyalkylene-polyamines and polyoxyalkylene-polyamines containing from 2 to 4 primary amino groups and PA1 c) one or more alkyl-substituted aromatic polyamines having a molecular weight of up to 500, in the presence or absence of PA1 d) catalysts and, if desired, PA1 e) blowing agents, PA1 f) auxiliaries and/or PA1 g) additives, and to the N-benzylpolyoxyalkylene-polyamines and mixtures of N-benzylpolyoxyalkylene-polyamines and polyoxyalkylene-polyamines containing from 2 to 4 primary amino groups which can be used for this purpose, and to the elastomers prepared.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.