Polymeric composites having high flammability resistance, and a method of making composites.

摘要

The fire retardancy of a composite comprising a heat fusible polymer matrix, a reinforcing material and a binder material is improved by incorporating an inorganic oxygen-containing compound therein. The composite is formed by flocculating an aqueous slurry of said components, dewatering the flocculate and drying the resultant mat. The dried mat can be consolidated by heat and pressure to form a sheet and then thermoformed and heat expanded in the direction perpendicular to the plane of the sheet to form a panel.