Adhesive including ethylene⋅α-olefin copolymer
AssigneeMitsui Chemicals, Inc.
InventorsKoya Yoshimoto, Masayoshi Yamaguchi, Hidetake Nakano
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Abstract
An adhesive with improved heat stability is provided. The adhesive includes an ethylene⋅α-olefin copolymer (A) having a number-average molecular weight of 5000 to 100000 in terms of polystyrene as measured by gel permeation chromatography and a density of 860 to 970 kg/m3, wherein in the ethylene⋅α-olefin copolymer (A), the total number of vinyl-type double bond, vinylidene-type double bond, 2-substituted olefin-type double bond and 3-substituted olefin-type double bond is less than 0.5 per 1000 carbon atoms as measured by 1H-NMR.
Claims7
An adhesive comprising an ethylene⋅α-olefin copolymer (A) having a number-average molecular weight of 5000 to 100000 in terms of polystyrene as measured by gel permeation chromatography, a melt flow rate at 190° C. under 2.16 kg load (MFR, ASTM D 1238) of 100 to 500 g/10 min, and a density of 896 to 908 kg/m3, wherein in the ethylene⋅α-olefin copolymer (A), a total number of vinyl double bond, vinylidene double bond, 2-substituted olefin double bond and 3-substituted olefin double bond is less than 0.5 per 1000 carbon atoms as measured by 1H-NMR spectroscopy and wherein a content of structural units derived from ethylene and a content of structural units derived from the α-olefin total 100 mol % of all repeating structural units in the ethylene⋅α-olefin copolymer (A).
Dependencies are inferred from the claim text.