Process and apparatus for the preparation of a free-flowing mixture made of free-flowing components which reacts to form foam

US4764536A · kind A · utility

Assignee

• Maschinenfabrik Hennecke GmbH · DE

Inventors

• Ferdinand Proksa · Leverkusen, DE
• Ferdinand Althausen · Neunkirchen, DE
• Gottfried Bucher · Troisdorf, DE
• Reiner Raffel · Siegburg, DE
• Hans-Michael Sulzbach · Rübhausen, DE

Key dates

• Filing date: Jan 15, 1987
• Grant date: Aug 16, 1988
• Expiry date: Jan 15, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S521/917
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The present invention is directed to a process and apparatus for introducing gas into one of at least two free-flowing components which are subsequently mixed to provide a foam-forming free-flowing mixture by transferring the component to have gas dispersed therein from a supply container to a gas loading area, loading the component with gas and returning the component to the supply area, wherein the gas used in the gas loading area is obtained from a gas cushion maintained in the supply container and wherein the gas is compressed to a pressure higher than the pressure in the gas loading area before it is dispersed into the free-flowing component.