Nonwoven with new thermoplastic binder
AssigneeJohns Manville
InventorsMichael Ketzer, Dana Gabriela Miloaga
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Abstract
Provided is a laminate composite material, comprising a cover layer and at least one fiber nonwoven layer, comprising mineral fibers or thermoplastic fibers and 1 to 45% by wt. of a thermoplastic binder composition to bond together the nonwoven web of fibers, a method for manufacturing the laminate composite material and an insulation product or panel comprising the same. The laminate composite material according to the invention has excellent surface aspect, good acoustic and thermal insulation properties, a good thermoforming and deep shaping performance, dimensional stability and sufficient stiffness at very low weights.
Claims19
A laminate composite material, comprising
- at least one cover layer and
- at least one nonwoven layer, comprising mineral fibers and/or polymer fibers or filaments and 1 to 45% by wt. of a thermoplastic binder composition to bond together the nonwoven web of fibers,
- characterized in that the thermoplastic binder composition comprises
- a) at least one aqueous polymer binder and
- b) 10 to 75% by wt. of at least one polymer wax emulsion based on the total weight of the binder and
- the fiber nonwoven layer is pressed or laminated to the cover layer.
Dependencies are inferred from the claim text.