Patent · US Active

Antifoaming agent for aqueous media

US8153697B2 · kind B2 · utility

2Cited by

1References

35Claims

0Family size

Assignee

BYK-CHEMIE GMBH · DE

Inventors

Albert Frank · Xanten, DE
Daniela Leutfeld · Wesel, DE
Dinah Grawe · Ratingen, DE
Michaela MICHELBRINK · Rees, DE

Key dates

Filing date	Dec 3, 2007
Grant date	Apr 10, 2012
Priority date	—
Expiry date	Mar 1, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to the use of a polyamide prepared from at least one diamine and at least one dicarboxylic acid in a formulation for defoaming aqueous media. The invention also relates to defoamers for aqueous media that comprise such a polyamide.

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