SEALANT FILM FOR CELL CULTURE VESSELS

• Main Authors: OYAMA MASAMICHI, ENAMI SHUNSUKE, ORIHARA MASANAO, KIMURA YOSHINORI, TADA HIRONORI, MURATA YOSHITSUNA, KURODA KENJIRO
• Format: Patent
• Language: English; Japanese
• Published: 11.01.2024
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; ENZYMOLOGY; GENERAL PROCESSES OF COMPOUNDING; 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; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; SPIRITS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; VINEGAR; WINE; WORKING-UP

To provide a sealant film for cell culture vessels that exhibits superior water repellency and demonstrates superior heat sealability.SOLUTION: A sealant film for cell culture vessels according to one aspect of the present invention comprises, based on its total weight, an ethylene copolymer (a-1) and an ethylene copolymer (a-2) as its primary components. The ethylene copolymer (a-1) has a density of 0.890-0.915 g/cm3 and a crystallization energy of 30-100 mJ/mg. The ethylene copolymer (a-2) has a density of 0.940-0.970 g/cm3 and an MFR of 0.4-10 g/10 min. The compositional ratio between the ethylene copolymer (a-1) and the ethylene copolymer (a-2) is (99 wt.%: 1 wt.%)-(40 wt.%: 60 wt.%).SELECTED DRAWING: None 【課題】撥水性に優れるとともに、ヒートシール性に優れる細胞培養容器用シーラントフィルムを提供する。【解決手段】本発明の一態様に係る細胞培養容器用シーラントフィルムは、全重量を基準とすると、エチレン共重合体（ａ－１）およびエチレン共重合体（ａ－２）を主成分とする、細胞培養容器用シーラントフィルムであって；エチレン共重合体（ａ－１）は、密度が、０．８９０～０．９１５ｇ／ｃｍ３、且つ結晶化エネルギーが３０～１００ｍＪ／ｍｇであり；エチレン共重合体（ａ－２）は、密度が、０．９４０～０．９７０ｇ／ｃｍ３、且つＭＦＲが０．４～１０ｇ／１０ｍｉｎであり；エチレン共重合体（ａ－１）と上記エチレン共重合体（ａ－２）との組成比は、（９９重量％：１重量％）～（４０重量％：６０重量％）である。【選択図】なし