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    • 3. 发明授权
    • Development roll for electrophotographic equipment
    • 电子照相设备开发卷
    • US08718518B2
    • 2014-05-06
    • US13567377
    • 2012-08-06
    • Shuichi EgawaMasanari UmedaYousuke Hayashi
    • Shuichi EgawaMasanari UmedaYousuke Hayashi
    • G03G15/08
    • G03G15/0818
    • A development roll for electrophotographic equipment includes a shaft body, a rubber elastic layer formed by molding on an outer circumference of the shaft body and having many convex portions formed by transfer molding on the outer circumferential surface thereof, and a coating layer disposed on an outer circumference of the rubber elastic layer. The coating layer is composed of a cured body of a coating material containing (A) a thermoplastic urethane having a number-average molecular weight in the range of 50,000 to 200,000, (B) a polyol having a number-average molecular weight in the range of 500 to 4,000, and (C) a curing agent. The mass percentages a, b, and c of the components (A), (B), and (C) satisfy the following expressions: a+b+c=100, 40≦a≦75, 5≦b≦20, and 20≦c.
    • 电子照相设备的显影辊包括轴体,橡胶弹性层,该橡胶弹性层通过在轴体的外周成型而形成,并且在其外圆周表面上具有通过传递模塑形成的许多凸部,以及设置在外壳上的涂层 橡胶弹性层的周长。 涂层由包含(A)数均分子量为50,000〜200,000的热塑性氨基甲酸酯的(A)数均分子量在数量级以上的多元醇的涂料的固化体构成 为500〜4000,(C)固化剂。 组分(A),(B)和(C)的质量百分比a,b和c满足以下表达式:a + b + c = 100,40≦̸ a≦̸ 75,5和nlE; b≦̸ 20和 20≦̸ c。
    • 5. 发明申请
    • DEVELOPMENT ROLL FOR ELECTROPHOTOGRAPHIC EQUIPMENT
    • 电子设备开发滚子
    • US20120294656A1
    • 2012-11-22
    • US13567377
    • 2012-08-06
    • Shuichi EGAWAMasanari UMEDAYousuke HAYASHI
    • Shuichi EGAWAMasanari UMEDAYousuke HAYASHI
    • G03G15/08
    • G03G15/0818
    • A development roll for electrophotographic equipment includes a shaft body, a rubber elastic layer formed by molding on an outer circumference of the shaft body and having many convex portions formed by transfer molding on the outer circumferential surface thereof, and a coating layer disposed on an outer circumference of the rubber elastic layer. The coating layer is composed of a cured body of a coating material containing (A) a thermoplastic urethane having a number-average molecular weight in the range of 50,000 to 200,000, (B) a polyol having a number-average molecular weight in the range of 500 to 4,000, and (C) a curing agent. The mass percentages a, b, and c of the components (A), (B), and (C) satisfy the following expressions: a+b+c=100, 40≦a≦75, 5≦b≦20, and 20≦c.
    • 电子照相设备的显影辊包括轴体,橡胶弹性层,该橡胶弹性层通过在轴体的外周成型而形成,并且在其外圆周表面上具有通过传递模塑形成的许多凸部,以及设置在外壳上的涂层 橡胶弹性层的周长。 涂层由包含(A)数均分子量为50,000〜200,000的热塑性氨基甲酸酯的(A)数均分子量在数量级以上的多元醇的涂料的固化体构成 为500〜4000,(C)固化剂。 组分(A),(B)和(C)的质量百分比a,b和c满足以下表达式:a + b + c = 100,40≦̸ a≦̸ 75,5和nlE; b≦̸ 20和 20≦̸ c。