PACKAGING BAG

PURPOSE:To provide a packaging bag usable even at very low temperatures, excellent in resistance to cold and heat, suitable for blood preservation and transportation etc., consisting of a polyamide resin made up of specific recurring unit. CONSTITUTION:The objective packaging bag consisting of a pol...

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Bibliographische Detailangaben
Hauptverfasser:	SARUWATARI MASUMI, YAMATANI NORIMASA, TSUTSUMI TOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G 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 PROCESSES OF COMPOUNDING 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 THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To provide a packaging bag usable even at very low temperatures, excellent in resistance to cold and heat, suitable for blood preservation and transportation etc., consisting of a polyamide resin made up of specific recurring unit. CONSTITUTION:The objective packaging bag consisting of a polyimide resin made up of recurring unit of formula I (X is direct bond, 1-10C divalent hydrocarbon, hexafluorinated isopropylidene, carbonyl, thio or sulfonyl; R is >=2C aliphatic group, alicyclic group, monocyclic aromatic group, condensed polycyclic aromatic group, etc.). The polyimide resin can be obtained by reaction between a compound of formula II and a compound of formula III.