LIGHT SHADING FILM

PROBLEM TO BE SOLVED: To provide a light shading film having a mechanical strength such as tear strength and falling weight impact strength which can withstand packaging of a large quantity of light sensitive materials, excellent shading properties and heat sealability and are suitable as easily rec...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAOKA HARUKI, NISHINO KAZUNARI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT 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 PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HANDLING THIN OR FILAMENTARY MATERIAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a light shading film having a mechanical strength such as tear strength and falling weight impact strength which can withstand packaging of a large quantity of light sensitive materials, excellent shading properties and heat sealability and are suitable as easily recyclable packaging materials for light sensitive materials such as sensitized paper. SOLUTION: The shading film is formed of [A] more than 65 to 85 pts.wt. linear low density polyethylene having a melt flow rate(MFR) of 2.0-3.0 g/10 min and a density of 0.910-0.920 g/cm3, [B] less than 35 to 15 pts.wt. high density polyethylene having an MFR of 0.03-0.05 g/10 min, a density of 0.940-0.956 g/cm3 and a Q-value (Mw/Mn) of not smaller than 20, and [C] 2-10 pts.wt. carbon black.