Process for the preparation of cellular or noncellular plastics from at least two components which react with one another

US4649162A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Roche · Grafing, DE
• Mathaeus Rank · Olching, DE

Key dates

• Filing date: Jan 23, 1986
• Grant date: Mar 10, 1987
• Expiry date: Jan 23, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/0895
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a process for the preparation of cellular or noncellular plastics, preferably polyurethane coatings, by reacting at least two components with one another, preferably organic polyisocyanates and polyhydroxyl compounds, by feeding the components into a mixing zone separately, and mixing them together and then discharging the reaction mixture from the mixing zone, while adding air heated to a temperature of 100.degree. to 1200.degree. C. to the reaction mixture as it emerges from the mixing zone.