ULTRAVIOLET-BLOCKING COMPOSITION FOR PROTECTION OF PACKAGE OR CONTAINER CONTENT

PROBLEM TO BE SOLVED: To provide a polyester composition screening solar ultraviolet without adding undue color to the composition. SOLUTION: The ultraviolet absorption composition developed for the protection of packaging or container contents in the ultraviolet range of 290 nm to 390 nm and offeri...

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Bibliographische Detailangaben
Hauptverfasser:	SHARPE EMERSON E JR, LITTLE RONDELL P JR, IRICK GETHER JR
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polyester composition screening solar ultraviolet without adding undue color to the composition. SOLUTION: The ultraviolet absorption composition developed for the protection of packaging or container contents in the ultraviolet range of 290 nm to 390 nm and offering effective screening from all wavelengths of solar radiation is provided. A combination of an optical brightener with an ultraviolet absorber is found to provide effective screening without adding significant color to the polymer composition. This extended range of ultraviolet blocking over what can be achieved with ultraviolet absorbers alone is especially useful in food and drink packaging applications where the contents of the packages need ultraviolet protection to prevent discoloration or development of undesirable flavors. COPYRIGHT: (C)2005,JPO&NCIPI