Patent · US Expired

Isocyanates containing amino groups

US6521707B2 · kind B2 · utility

2Cited by

5References

6Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Wolfgang Podszun · Neunburg vorm Wald, DE
Joachim Krüger · Mülheim an der Ruhr, DE
Kamelia Karlou-Eyrisch · Mülheim an der Ruhr, DE

Key dates

Filing date	Nov 1, 2001
Grant date	Feb 18, 2003
Priority date	—
Expiry date	Nov 1, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/714
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to novel isocyanates containing tertiary amino groups, a process for preparing them, and also their use for the synthesis and modification of polymers. The invention provides isocyanates of the formula (I) whereR1 and R2 are, independently of one another, alkyl having from 1 to 6 carbon atoms, where R1 and R2 may be joined to form a ring,Z is alkylene having from 2 to 6 carbon atoms,n is an integer from 0 to 20,Y is alkylene having from 2 to 6 carbon atoms.The alkyl radicals R1 and R2 may be linear or branched or joined to form an aliphatic ring. The alkylene radical Z preferably contains from 2 to 4 carbon atoms.

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