Patent · US Expired

Anti-foam compositions

US7619043B2 · kind B2 · utility

16Cited by

14References

16Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Holger Rautschek · Großenhain, DE
Richard Becker · Burghausen, DE
Willibald Burger · Burghausen, DE

Key dates

Filing date	Aug 4, 2005
Grant date	Nov 17, 2009
Priority date	—
Expiry date	May 10, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/162
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Defoaming compositions employing organopolysiloxanes bearing aryl radicals exhibit surprising efficiency relative to their alkyl counterparts.

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