POLYALKYLENE NAPHTHALATE FILM CONTAINING SPECIAL UV ABSORBER

PROBLEM TO BE SOLVED: To obtain the subject film, useful for photographic materials which show virtually no discoloration while being preserved, by including a compound effective for controlling development of UV-fluorescence in polyalkylene naphthalate. SOLUTION: This film is made from (A) a polyal...

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Bibliographische Detailangaben
Hauptverfasser:	AUGUST MARIEN, WEBER BEATE, HAGEMANN JOERG DR
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES ELECTROGRAPHY GENERAL PROCESSES OF COMPOUNDING HOLOGRAPHY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain the subject film, useful for photographic materials which show virtually no discoloration while being preserved, by including a compound effective for controlling development of UV-fluorescence in polyalkylene naphthalate. SOLUTION: This film is made from (A) a polyalkylene naphthalate or its derivative, and contains (B) an UV-absorber shown by formula I (R and R are each H, a halogen, mercapto, alkyl or the like independently; R is H, a hydroxy, halogen or the like; R is an alkyl, alkoxy, alkylthio or the like; (m) and (n) are each 1, 2, 3 or 4 independently). The component A is used as the base, and is preferably a homopolymer (PEN) of 2,6-naphthalenedicarboxylic acid and ethylene glycol (100/100). The base is preferably 40 to 500 μm thick. The component B is preferably of a compound shown by the formula II. It is preferable to use the component B at 0.1 to 1.0 wt.% based on the component A.