MANUFACTURE OF ULTRAVIOLET PROTECTIVE PLASTIC SHAPE OF MULTILAYER

A method for making multilayered synthetic resin bodies by the coextrusion of thermoplastic molding compounds wherein at least one of the layers in the extruded body is to be protected against UV light, which comprises extruding at least one layer from a thermoplastic molding compound that is formed...

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Bibliographische Detailangaben
Hauptverfasser:	RARUFU RIIPURAA, JIIKUMUNTO BEZETSUKE, MANFUREETO MUNTSUAA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method for making multilayered synthetic resin bodies by the coextrusion of thermoplastic molding compounds wherein at least one of the layers in the extruded body is to be protected against UV light, which comprises extruding at least one layer from a thermoplastic molding compound that is formed entirely or predominantly of a copolymer formed between monomers comprising in their molecules groups or structures which, because of their characteristic absorption of ultraviolet light, provide protection against ultraviolet light, together with other, known, monomers.