Patent · US Expired

Graft polymer with sidechains comprising nitrogen heterocycles

US7101836B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

BASF SE

Inventors

Pia Baum · Weinheim, DE
Christine Mueller · Munich, DE
Anke Oswald · Haßloch, DE
Birgit Potthoff-Karl · Weinheim, DE

Key dates

Filing date	Nov 11, 2002
Grant date	Sep 5, 2006
Priority date	—
Expiry date	Nov 11, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/0021
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Graft polymer, comprising (A) a polymer graft skeleton with no mono-ethylenic unsaturated units and (B) polymer sidechains formed from co-polymers of two different mono-ethylenic unsaturated monomers (B1) and (B2), each comprising a nitrogen-containing heterocycle, whereby the proportion of the sidechains (B) amounts to more than 55 wt. % of the total polymer.

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