Patent · US Active

Low-viscosity aqueous compositions

US8519071B2 · kind B2 · utility

1Cited by

0References

7Claims

0Family size

Assignee

Cognis IP Management GmbH · DE

Inventors

Thomas Schliwka · Bensberg, DE
Ronald Klagge · Erkrath, DE
Uwe Held · Velbert, DE
Thomas Mausberg · Haan, DE

Key dates

Filing date	Nov 17, 2011
Grant date	Aug 27, 2013
Priority date	—
Expiry date	Nov 17, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F218/10
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Provided are low-viscosity aqueous compositions comprising compounds of Formula (III) and (IV). These compositions are prepared by jointly ethoxylating a mixture of the compounds of the Formula (I) and (II) to give an intermediate which represents a mixture of compounds of Formulas (I*) and (II*). The intermediate is then converted by sulfation or phosphation and subsequent neutralization, into an aqueous composition comprising the compounds of Formula (III) and (IV). The aqueous compositions are notable for having, at 20° C., a Brookfield viscosity of 3000 mPas or less (measured at 20° C. with spindle 2 and 20 rpm), and are suitable as emulsifiers for emulsion polymerization.

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