Patent · US Active

Encapsulated phenolic antioxidants

US8580876B2 · kind B2 · utility

10Cited by

0References

14Claims

0Family size

Assignee

BASF SE

Inventors

Frank Oliver Heinrich Pirrung · Ludwigshafen am Rhein, DE
Clemens Auschra · Glückstadt, DE
Christof Hasler · Rombach, CH

Key dates

Filing date	Jul 27, 2010
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Jul 27, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/375
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention pertains to a concentrated aqueous polymer dispersion with an average particle size of less than 1000 nm comprising a polymer carrier, a non-polar organic phenolic antioxidant and a surfactant. The present invention also pertains to a process for the preparation of said concentrated aqueous polymer dispersion, to a polymer powder obtainable from said concentrated aqueous polymer dispersion, to a composition comprising an organic material and said concentrated aqueous polymer dispersion or said polymer powder and to the use of said concentrated aqueous polymer dispersion or said polymer powder as stabilizer for organic material.

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