Fire retardant laminates having intumescent adhesive layer comprising shellac
AssigneeMobile Oil Corporation
InventorsJeffrey D. Marshall, Milton C. Kuklies
Life of this patent
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Abstract
A fire retardant laminate construction comprising a plastic backing film adhesively secured to an insulation batting material. The adhesive material comprises an intumescent coating, containing one or more fire retardant additives, which will foam and char at high temperatures to form a solid multicellular, fire retardant insulating layer which prevents wicking of the plastic material into the insulation batting.
Claims9
A laminate construction comprising a plastic film layer bonded, with an intumescent adhesive coating composition, to an insulation batting layer, said adhesive composition comprising a mixture of shellac, a phosphoric acid salt and a blowing agent said adhesive coating, when exposed to elevated temperatures, swells by foaming to form a protective multicellular char layer.
An adhesive coating composition comprising a mixture of shellac, a phosphoric acid salt, and a blowing agent.
Dependencies are inferred from the claim text.