4-METHYL-1-PENTENE POLYMER

To provide a 4-methyl-1-pentene polymer being excellent in storage stability when dissolved in a solvent and solubility, and being excellent in at least one of heat resistance, and a coating appearance when a coating film is stretched, for example, when such a film is bended or used in a flexible ap...

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Bibliographische Detailangaben
Hauptverfasser: TANAKA, Masakazu, ASANO, Akihiro, MIZOBUCHI, Yusuke, IWATA, Takuya, SASAKI, Toyoaki
Format: Patent
Sprache:eng
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Zusammenfassung:To provide a 4-methyl-1-pentene polymer being excellent in storage stability when dissolved in a solvent and solubility, and being excellent in at least one of heat resistance, and a coating appearance when a coating film is stretched, for example, when such a film is bended or used in a flexible application.A 4-methyl-1-pentene polymer (A) being a copolymer of 4-methyl-1-pentene and at least one selected from linear α-olefins having 6 to 20 carbon atoms, the 4-methyl-1-pentene polymer (A) satisfying the following requirements (I) and (II):(I) an endotherm end temperature (TmE) in a melting (endothermic) curve measured by DSC is 230° C. or lower; and(II) an exotherm start temperature (TcS) in a crystallization (exothermic) curve measured by DSC is 210° C. or lower.