Patent · US Expired

Method for producing water-soluble polymers, comprising oligoalkylene-imine side chains

US6562926B1 · kind B1 · utility

4Cited by

2References

19Claims

0Family size

Assignee

BASF SE

Inventors

Jürgen Decker · Speyer, DE
Stefan Frenzel · Weinheim, DE
Martin Rubenacker · Altrip, DE
Hubert Meixner · Ludwigshafen, DE

Key dates

Filing date	May 13, 2002
Grant date	May 13, 2003
Priority date	—
Expiry date	May 13, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F220/56
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a method for producing water-soluble homopolymers and copolymers, comprising oligoalkylene-imine side chains of the general formula (I), wherein [AI]m, m, Y and x have the definitions given in claim 1, by radical homopolymerisation or copolymerisation of monomers A of the general formula (II), wherein [AI]m, m, n, Y and R have the definitions given in claim 1, in an aqueous reaction medium. The invention also relates to the homopolymers and copolymers obtained by this method and to their use as auxiliary agents in paper production.

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