Fireproofing composition and door rabbet coated therewith

US4442157A · kind A · utility

Assignee

• BASF SE

Inventors

• Hans-Norbert Marx · Bühl, DE
• Reimer Gottsche · Baden-Baden, DE

Key dates

• Filing date: Dec 29, 1980
• Grant date: Apr 10, 1984
• Expiry date: Dec 29, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31855
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Heat-foamable fireproofing compositions contain thermosetting phenolic resins, thermally decomposable organic nitrogen compounds, eg. dicyandiamide, an ammonium salt and a carbohydrate or polyhydric alcohol, and on decomposition form a stiff carbonaceous foam.