Magnetic recording tape
    121.
    发明授权
    Magnetic recording tape 失效
    磁记录磁带

    公开(公告)号:US06228461B1

    公开(公告)日:2001-05-08

    申请号:US09259290

    申请日:1999-03-01

    IPC分类号: G11B5735

    摘要: A magnetic recording tape favorably employable for recording computer data is composed of a support, and on one side of the support, a non-magnetic layer composed of a non-magnetic powder and a binder, and a magnetic recording layer composed of a ferromagnetic powder and a binder superposed in order, and on the other side, a back-coating layer containing carbon black, in which the magnetic recording tape has a lateral thermal expansion coefficient of not more than 0.0015%/° C., a lateral humidity expansion coefficient of not more than 0.0015%/% RH, a longitudinal offset proof stress of not less than 10 N, and a longitudinal breaking strength of not less than 30 N.

    摘要翻译: 适用于记录计算机数据的磁记录带由支撑体构成,并且在支撑体的一侧由非磁性粉末和粘合剂组成的非磁性层和由铁磁性粉末组成的磁记录层 和粘合剂,其另一侧是含有炭黑的背涂层,其中磁记录带的横向热膨胀系数不大于0.0015%/℃,横向湿度膨胀系数 不大于0.0015%/%RH,纵向抗弯曲应力不小于10N,纵向断裂强度不小于30N。

    Magnetic recording medium
    123.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US5795645A

    公开(公告)日:1998-08-18

    申请号:US617555

    申请日:1996-03-19

    摘要: A magnetic recording medium is disclosed, comprising a magnetic layer comprising a ferromagnetic powder and a binder provided on one side of a non-magnetic support and a backing layer provided on another side of said non-magnetic support, wherein said ferromagnetic powder is a ferromagnetic metal powder comprising Fe as a main component Co and containing Y in an amount of from 1 to 5 atm-% based on the total weight of Fe and Co in said ferromagnetic metal powder, and said binder comprises a polyurethane mainly comprising a diol component composed of a polyether polyol and a polyester polyol and a polyisocyanate component.

    摘要翻译: 公开了一种磁记录介质,其包括磁性层,该磁性层包括铁磁粉末和设置在非磁性载体的一侧上的粘合剂和设置在所述非磁性载体的另一侧上的背衬层,其中所述铁磁粉末是铁磁性的 金属粉末,其以Fe为主要成分Co,以所述强磁性金属粉末中的Fe和Co的总重量计含有1〜5atm%的Y,所述粘合剂包含主要由二醇成分组成的聚氨酯 的聚醚多元醇和聚酯多元醇和多异氰酸酯组分。

    Method for coating golf balls
    126.
    发明授权
    Method for coating golf balls 失效
    高尔夫球涂层方法

    公开(公告)号:US5506004A

    公开(公告)日:1996-04-09

    申请号:US365112

    申请日:1994-12-28

    摘要: Disclosed is a method for coating a golf ball, wherein the coating efficiency of the paint is high and a uniform coating can be formed. According to the method, the paint is sprayed on a golf ball moving with rotation on the circumference of a circle having a diameter of 0.5 to 1.5 m from a disc charged with 60,000 to 130,000 V, which is rotating at 20,000 to 40,000 rpm and is inclined or moving in the vertical direction, or a paint is sprayed in a direction at an angle of 45.degree. or less to the horizontal direction from a disc charged with the above voltage, which is rotating at the above number of revolutions, to coat the golf ball so that a ratio of the maximum film thickness to the minimum film thickness may be 1.5 or less after one round of coating.

    摘要翻译: 公开了一种涂覆高尔夫球的方法,其中涂料的涂布效率高,并且可以形成均匀的涂层。 根据该方法,将涂料喷射到高尔夫球上,该高尔夫球从具有以20,000至40,000rpm旋转的60000至130,000V的圆盘的直径为0.5至1.5μm的圆周的圆周上旋转移动,并且为 在垂直方向上倾斜或移动,或者从装有上述转速的上述电压的盘向与水平方向成45度角的方向喷射涂料,以涂覆 高尔夫球,使得在一轮涂布之后,最大膜厚度与最小膜厚度的比可以为1.5以下。

    Magnetic recording medium
    128.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US5175048A

    公开(公告)日:1992-12-29

    申请号:US765740

    申请日:1991-09-26

    摘要: A magnetic recording medium comprising a non-magnetic support having at least two magnetic layers formed thereon, the at least two magnetic layers being formed by providing, in sequence, a first magnetic layer containing first ferromagnetic powder and a first binder on a surface of the non-magnetic support and then providing a second magnetic layer containing a second binder and second ferromagnetic powder while the first layer is in a wet state, the first magnetic layer containing the first binder in an amount of 10 to 27 parts by weight based on 100 parts by weight of the first ferromagnetic powder, the second magnetic layer containing the second binder in an amount of 14 to 30 parts by weight based on 100 parts by weight of the second ferromagnetic powder, the amount of the first binder contained in the first magnetic layer being smaller than that of the second binder contained in the second magnetic layer with a difference therebetween being from 0.5 to 10 parts by weight, and a ratio (A/B) of a dry thickness (A) of the first magnetic layer to a dry thickness (B) of the second magnetic layer being from 0.5 to 3.2. The magnetic recording medium is excellent in electromagnetic conversion characteristics and running stability.

    摘要翻译: 一种磁记录介质,包括其上形成有至少两个磁性层的非磁性载体,所述至少两个磁性层通过依次提供含有第一铁磁性粉末和第一粘结剂的第一磁性层而形成 然后提供包含第二粘合剂和第二铁磁粉末的第二磁性层,同时第一层处于湿润状态,第一磁性层含有基于100的10至27重量份的第一粘合剂 所述第一铁磁粉末的重量份,含有所述第二粘合剂的所述第二磁性层的量为基于100重量份所述第二铁磁粉末为14〜30重量份,所述第一磁性体中含有的所述第一粘合剂的量 层比第二磁性层中包含的第二粘合剂的层小,其间的差值为0.5〜10重量份,并且ra 第一磁性层的干厚度(A)至第二磁性层的干厚度(B)的tio(A / B)为0.5至3.2。 磁记录介质具有优异的电磁转换特性和运行稳定性。

    Method of producing a magnetic recording medium
    129.
    发明授权
    Method of producing a magnetic recording medium 失效
    制造磁记录介质的方法

    公开(公告)号:US5073406A

    公开(公告)日:1991-12-17

    申请号:US682767

    申请日:1991-04-09

    IPC分类号: G11B5/716 G11B5/842

    CPC分类号: G11B5/716 G11B5/842

    摘要: A method of producing a magnetic recording medium comprises the steps of kneading and dispersing ferromagnetic powder, binder and non-ferromagnetic powder to obtain magnetic coating solutions, and applying a plurality of the magnetic coating solutions on a non-ferromagnetic substrate to form a plurality of magnetic layers on the substrate. In the kneading and dispersing step, a magnetic coating composition containing a ferromagnetic powder and a solvent of 15 to 30 wt % of the ferromagnetic powder is kneaded by a two-shaft continuous kneading and mixing machine and then dispersed by a pin type sand grinder to obtain a first magnetic solution. Another magnetic coating composition containing a ferromagnetic powder and a solvent of 30 to 50 wt % of the ferromagnetic powder is kneaded by a double-arm open kneader and then dispersed by a pin type sand grinder, and finally dispersed by a disk type sand grinder to obtain a second magnetic coating solution. In the magnetic solution applying step, the first magnetic coating solution is at first applied on said substrate and then the second magnetic coating solution is applied thereon.

    摘要翻译: 一种制造磁记录介质的方法包括以下步骤:将铁磁性粉末,粘合剂和非铁磁性粉末混合和分散以获得磁性涂层溶液,并将多个磁性涂覆溶液施加在非铁磁性基底上以形成多个 基底上的磁性层。 在捏合分散工序中,将含有铁磁性粉末和15〜30重量%的铁磁粉末的溶剂的磁性涂料组合物通过双轴连续捏合混合机进行混炼,然后用针式砂磨机分散 获得第一磁性溶液。 含有铁磁性粉末和铁磁性粉末的含量为30〜50重量%的溶剂的磁性涂料组合物用双臂开口捏合机捏合,然后用针式砂磨机分散,最后用盘式砂磨机分散 获得第二磁性涂层溶液。 在磁性溶液涂布步骤中,首先将第一磁性涂布溶液涂布在所述基材上,然后将第二磁性涂布液涂布在其上。