Foamed plastics laminates
AssigneeImperial Chemical Industries PLC
InventorPeter J. Briggs
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Abstract
Laminated foamed plastics articles, especially polyurethane and polyisocyanurate rigid foam panels, are faced with a fibrous composite material comprising fibres, especially glass fibres, and vermiculite lamellae. The vermiculite lamellae are preferably size-graded to eliminate larger lamellae. Preformed flexible layers of the fibrous composite material may be used to face rigid foam board in a continuous lamination process. The articles have good fire resistance properties.
Claims6
A laminated article having a foamed plastics core covered, at least in part, with a fibrous composite material comprising fibre and vermiculite lamellae.
A process for the manufacture of a laminated article in which a foamed plastics core is covered, at least in part, with a fibrous composite material comprising fibre and vermiculite lamellae.
Dependencies are inferred from the claim text.