Patent · US Expired

Process for the production of a foam inhibitor mixture

US4801401A · kind A · utility

3Cited by

9References

10Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Paul Schulz · Wuppertal, DE
Martin Witthaus · Goldkronach, DE
Juergen Waldmann · Langenfeld, DE

Key dates

Filing date	Mar 6, 1987
Grant date	Jan 31, 1989
Priority date	—
Expiry date	Mar 6, 2007

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D19/0404
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

To prepare a highly effective foam inhibitor mixture consisting of paraffin hydrocarbons, hydrophobicized silica and liquid paraffin hydrocarbons, a finely divided silica is dispersed in paraffin hydrocarbons melting above 40.degree. C. and reacted with alkyl trichlorosilanes wherein the alkyl groups contain from 4 to 22 carbon atoms.

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