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AssigneeHenkel AG & Co. KGaA
InventorsSina Chaeichian, Kaspar Schaerer, Bashir M. Ahmed, Omar L. Abu-Shanab, Michael D. Halbasch, Tsehaye N. Eyassu, Martin Renkel, Ruairi O'Kane, Anna Esmeralda Javier
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This disclosure is directed to methods for preparing thermoplastic surfaces suitable for the application of paint, adhesives, or surfacing films and the structures derived or derivable from these methods. The disclosure is also directed to composite structures comprising a thermoplastic substrate comprising a chemical sealant direct bonded to a surface thereof, the chemical sealant providing a surface suitable for adhering adhesives, paints, and/or surfacing films to the thermoplastic surfaces.
A composite structure comprising a thermoplastic substrate having a chemical sealant directly bonded to a surface thereof by cross-polymer linkages derived from activated —OH, —SH, —C(O)H, —C(O)OH, or —C(O)—NH moieties of photolytically cleaved linkages of the thermoplastic substrate, cleaved at cleavage energy of 9 J/cm2 to 300 J/cm2 and at least one wavelength in a range of 10 nm-500 nm, and reactive groups of the chemical sealant, and a surfacing film layer;
A composite structure comprising a thermoplastic substrate having a chemical sealant directly bonded to a surface thereof by cross-polymer linkages derived from activated —OH, —SH, —C(O)H, —C(O)OH, or —C(O)—NH moieties of ultraviolet photolytically cleaved linkages of the thermoplastic substrate and reactive groups of the chemical sealant, and a surfacing film layer;
A composite structure comprising a thermoplastic substrate having a chemical sealant directly bonded to a surface thereof by cross-polymer linkages derived from activated —OH, —SH, —C(O)H, —C(O)OH, or —C(O)—NH moieties of ultraviolet photolytically cleaved linkages of the thermoplastic substrate and reactive groups of the chemical sealant, and a surfacing film layer;
A composite structure comprising a thermoplastic substrate having a chemical sealant directly bonded to a surface thereof by cross-polymer linkages derived from activated —OH, —SH, —C(O)H, —C(O)OH, or —C(O)—NH moieties of ultraviolet photolytically cleaved linkages of the thermoplastic substrate and reactive groups of the chemical sealant, and a surfacing film layer;
A composite structure comprising a thermoplastic substrate having a chemical sealant directly bonded to a surface thereof by cross-polymer linkages derived from activated —OH, —SH, —C(O)H, —C(O)OH, or —C(O)—NH moieties of ultraviolet photolytically cleaved linkages of the thermoplastic substrate and reactive groups of the chemical sealant, and a surfacing film layer;
Dependencies are inferred from the claim text.