Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear poured support layer of plastic

• Main Authors: DEARMITT, CHRIS, MC KEE, GRAHAM EDMUND, KAVARNOU, ASIMINA, FUNKHAUSER, STEFFEN
• Format: Patent
• Language: English; German
• Published: 21.12.2006
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear-poured support layer of plastic, where the composite layered plate comprising a substrate layer; optionally an intermediate layer; optionally a hard intermediate layer; and a silicon oxide surface layer obtained by plasma separation of silanes or siloxane with atmospheric pressure. Molded part comprises a composite layered plate or -foil, rear spray, rear foam or rear-poured support layer of plastic, where the composite layered plate or -foil comprising a substrate layer containing elastic-rubber graft copolymers as component A (1-99 wt.%), one or more hard copolymers containing vinyl aromatic monomer units as component B (1-99 wt.%), polycarbonate or polyurethane as component C (0-80 wt.%) and fiber- or particle shaped fillers or its mixture as component D (0.50 wt.%); optionally an intermediate layer containing impact resistant-modified polymethyl methacrylate and/or polycarbonate and/or styrene copolymers; optionally a hard intermediate layer containing polymethyl methacrylate and/or poly (alpha-methyl) styrene-acrylonitrile and/or polystyrene acrylonitrile, polyurethane and/or polycarbonate; and a silicone oxide (SiOx) surface layer obtained by plasma separation of silanes or siloxanes with atmospheric pressure. Independent claims are included for: (1) the preparation of molded part; (2) a method for increasing the scratching stability of molded part, comprising plasma coating of the substrate layer, intermediate layer, hard intermediate layer and silicone oxide layer, in atmospheric pressure; and (3) a procedure for the preparation of molded part with self-cleaning surface, comprising additional coating of molded part with photo catalytic active material. Die Erfindung betrifft Formteile, umfassend eine Verbundschichtplatte oder -folie und eine hinterspritzte, hinterschäumte oder hintergossene Trägerschicht aus Kunststoff, wobei die Verbundschichtplatte oder -folie umfasst: DOLLAR A (1) eine Substratschicht, enthaltend, bezogen auf die Summe der Mengen der Komponenten A und B, und ggf. C und/oder D, die insgesamt 100 Gew.-% ergibt, DOLLAR A a 1-99 Gew.-% eines kautschukelastischen Pfropfcopolymerisats als Komponente A, DOLLAR A b 1-99 Gew.-% eines oder mehrerer harter Copolymerisate, enthaltend Einheiten, die sich von vinylaromatischen Monomeren ableiten, als Komponente B, DOLLAR A c 0-80 Gew.-% Polycarbonate oder Polyurethan als Komponente C, und DOLLAR A d 0-50 Gew.-% faser- oder teilchenförmige Füllstoffe oder deren Gemische als Komponente D, DOLLAR A (2) gegebenenfalls eine Zwischenschicht (2), enthaltend schlagzäh-modifiziertes Polymethylmethacrylat und/oder Polycarbonat und/oder Styrolcopolymerisate, DOLLAR A (3) gegebenenfalls eine harte Zwischenschicht (3), enthaltend Polymethylmethacrylat und/oder Poly(alpha-methyl)styrol-Acrylnitril und/oder Polystyrol-Acrylnitril, Polyurethan und/oder Polycarbonat, und DOLLAR A (4) eine SiO¶x¶-Deckschicht (4), erhältlich durch Plasmaabscheidung von Silanen oder Siloxanen bei Atmosphärendruck.