Composite structure with polyurethane layers, which is substantially free of volatile organic compounds
AssigneeStahl International B.V.
InventorsMartinus Johannes van den Berg, Rick Andreas Louis Janssen, Maarten Jaspers, Mark Dunning, Luuk Lambertus Christina Olijve, Stefan Willem Mommers, Wouter Godefridus Antonius Vermeulen
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Abstract
An embodiment of the present invention relates to a composite structure with one or several polyurethane layers, which is substantially free of volatile organic compounds (VOC). In addition, the invention relates to the method of manufacturing such composite structure. Further, the invention relates to the use of such composite structure, in particular as artificial leather.
Claims22
A composite structure comprising three or more layers of which at least two layers are based on polyurethane, said layers being 1) a support layer, 2) an adhesive layer based on a polyurethane dispersion, and 3) a skin layer based on a polyurethane, wherein each of said layers are formed from compositions substantially free of volatile organic compounds, wherein the skin layer is not made from a polyurethane dispersion and has a dried thickness of between 100 microns and 400 microns, and wherein the adhesive layer is interposed between the skin layer and the support layer.
Dependencies are inferred from the claim text.