Patent · US Expired

Anticorrosion binders comprising phosphate or phosphonate groups

US6218456A · kind A · utility

6Cited by

5References

6Claims

0Family size

Assignee

BASF SE

Inventors

Bernhard Schlarb · Ludwigshafen, DE
Harm Wiese · Heidelberg, DE
Gerald Wildburg · Ludwigshafen, DE
Maria Gyopar Rau · Haßloch, DE

Key dates

Filing date	May 28, 1999
Grant date	Apr 17, 2001
Priority date	—
Expiry date	May 28, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F220/1804
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An aqueous polymer dispersion obtainable by emulsion polymerization of a monomer mixture A) comprising from 50 to 100% by weight of C.sub.1 -C.sub.18 alkyl (meth)acrylates, vinyl esters, vinylaromatic compounds, or mixtures thereof, in the presence of a protective colloid B) composed of PA1 b.sub.1) from 2 to 40% by weight of ethylenically unsaturated copolymerizable compounds (monomers) having at least one phosphate or phosphonate group PA1 b.sub.2) from 0 to 98% by weight of C.sub.1 -C.sub.18 alkyl (meth)acrylates, vinyl esters or vinylaromatic compounds PA1 b.sub.3) from 0 to 50% by weight of further monomers, the amounts by weight being based on the protective colloid.

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