Composition for the production of polyurethane foam materials having improved form stability

US4558073A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Hermann Kluth · Goldkronach, DE
• Jurgen Wegner · Düsseldorf, DE

Key dates

• Filing date: Jul 25, 1984
• Grant date: Dec 10, 1985
• Expiry date: Jul 25, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2483/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to one component polyurethane foam compositions which comprise mixtures of prepolymers of a polyol and an excess of isocyanate; the usual adjuvants for polyurethane foams, an expanding gas under pressure and a polysiloxane compound with antifoam activity stored in a valved pressure vessel.