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    Magnetic recording medium lubricated by a mixture of methyl branched iso ester compounds synthesized by the oko process
    1.
    发明授权
    Magnetic recording medium lubricated by a mixture of methyl branched iso ester compounds synthesized by the oko process 失效
    通过由oko方法合成的甲基支链异酯化合物的混合物润滑的磁记录介质

    公开(公告)号：US5091270A

    公开(公告)日：1992-02-25

    申请号：US382880

    申请日：1989-07-21

    申请人： Takao Ohya ,  Yasuo Nishikawa ,  Satoru Hayakawa

    发明人： Takao Ohya ,  Yasuo Nishikawa ,  Satoru Hayakawa

    IPC分类号： G11B5/708 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/71 ,  G11B5/72 ,  G11B5/725

    CPC分类号： G11B5/71 ,  G11B5/725 ,  Y10S428/90

    摘要： A magnetic recording medium is disclosed, which has a magnetic layer on a non-magnetic support, wherein at least a mixture of ester compounds shown by formula (I) obtained by the reaction of a straight chain or branched fatty acid having from 12 to 30 carbon atoms and branched alcohols having from 10 to 32 carbon atoms synthesized by oxo synthesis is retained in or on the magnetic layer: ##STR1## wherein R.sub.1 represents a straight chain or branched alkyl group having from 11 to 29 carbon atoms or a straight chain or branched alkenyl group having from 11 to 29 carbon atoms, and R.sub.2 represents a branched alkyl group having from 10 to 32 carbon atoms. The magnetic recording medium has an excellent running durability in wide ranges of temperature and humidity condition.

    摘要翻译： 公开了一种磁性记录介质，其在非磁性载体上具有磁性层，其中至少由式（I）表示的酯化合物的混合物通过具有12至30的直链或支链脂肪酸的反应获得 碳原子和通过氧代合成合成的具有10至32个碳原子的支链醇保留在磁性层中或磁性层上：其中R 1表示具有11至29个碳原子的直链或支链烷基或 具有11〜29个碳原子的直链或支链烯基，R2表示碳原子数为10〜32的支链烷基。 磁记录介质在宽范围的温度和湿度条件下具有优异的运行耐久性。

    Magnetic recording medium comprising a polar group containing resin or compound and a methyl iso ester lubricant prepared from a methyl iso acid or methyl iso alcohol or both
    2.
    发明授权
    Magnetic recording medium comprising a polar group containing resin or compound and a methyl iso ester lubricant prepared from a methyl iso acid or methyl iso alcohol or both 失效
    包含含有极性基团的树脂或化合物的磁记录介质和由甲基异酸或甲基异丙醇或两者制备的甲基异酯润滑剂

    公开(公告)号：US5061564A

    公开(公告)日：1991-10-29

    申请号：US382934

    申请日：1989-07-21

    申请人： Takao Ohya ,  Jun Nakagawa ,  Satoru Hayakawa ,  Yasuo Nishikawa ,  Tsutomu Okita ,  Hiroshi Hashimoto

    发明人： Takao Ohya ,  Jun Nakagawa ,  Satoru Hayakawa ,  Yasuo Nishikawa ,  Tsutomu Okita ,  Hiroshi Hashimoto

    IPC分类号： G11B5/71 ,  G11B5/72

    CPC分类号： G11B5/71 ,  G11B5/72 ,  Y10S428/90 ,  Y10T428/31 ,  Y10T428/31551 ,  Y10T428/3158

    摘要： A magnetic recording medium is disclosed, which comprises a non-magnetic support having provided thereon a magnetic layer mainly composed of a ferromagnetic powder and a binder resin comprising (i) a polymer having at least one polar group selected from --SO.sub.3 M.sup.1, --OSO.sub.3 M.sup.1, --COOM.sup.1, ##STR1## wherein M.sup.1 represents a hydrogen atom, Li, Na or NR.sub.4 (wherein R represents a hydrogen atom, an alkyl group, an alkenyl group, or an alkanol group), and M.sup.2 represents a hydrogen atom, Li, Na, an alkyl group, or NR.sub.4 (wherein R has the same significance as defined above); or (ii) a compound having at least one polar group selected from --SO.sub.3 M.sup.3, --COOM.sup.3, and --PO.sub.3 (M.sup.3).sub.2 (wherein M.sup.3 represents a hydrogen atom, an alkali metal, or an ammonium group) and containing at least one carbon-carbon unsaturated bond in the molecule, said magnetic layer containing at least one ester compound represented by following formula (I), (II), or (III), and when the binder resin comprises the compound (ii), the magnetic layer is irradiated by radiations: ##STR2## wherein R.sup.1 represents a straight chain or branched alkyl group having from 7 to 29 carbon atoms or a straight chain or branched alkenyl group having from 7 to 29 carbon atoms; l, k, m, and n represents an integer; l and n each is at least 2, and the sum of n and m and the sum of k and l are from 7 to 33.

    摘要翻译： 公开了一种磁记录介质，其包括其上设置有主要由铁磁粉末和粘合剂树脂构成的磁性层的非磁性载体，所述磁性层包含（i）具有至少一个选自-SO 3 M 1，-OSO 3 M 1， -COOM1，其中M1表示氢原子，Li，Na或NR4（其中R表示氢原子，烷基，烯基或链烷醇基），M2表示氢原子，Li，Na ，烷基或NR4（其中R具有与上述相同的含义）; 或（ii）具有选自-SO 3 M 3，-COOM 3和-PO 3（M3）2中的至少一个极性基团的化合物（其中，M3表示氢原子，碱金属或铵基），并且含有至少一个碳 所述磁性层含有至少一种由下式（I），（II）或（III）表示的酯化合物，并且当粘合剂树脂包含化合物（ii）时，磁性层为 （I）其中R1表示具有7至29个碳原子的直链或支链烷基或具有7个碳原子的直链或支链烯基 至29个碳原子; l，k，m，n表示整数; l和n各自为至少2，n和m之和以及k和l之和为7至33。

    Magnetic recording medium lubricant comprising a phthalic acid diester and fatty acid ester
    3.
    发明授权
    Magnetic recording medium lubricant comprising a phthalic acid diester and fatty acid ester 失效
    含有酸性乳酸酯和脂肪酸酯的磁性记录介质润滑剂

    公开(公告)号：US5104751A

    公开(公告)日：1992-04-14

    申请号：US644861

    申请日：1991-01-23

    申请人： Takao Ohya ,  Satoru Hayakawa

    发明人： Takao Ohya ,  Satoru Hayakawa

    IPC分类号： G11B5/71 ,  G11B5/725

    CPC分类号： G11B5/71 ,  G11B5/725 ,  Y10S428/90

    摘要： A magnetic recording medium having an improved running durability is disclosed, which comprises a non-magnetic support having formed thereon a magnetic layer mainly composed of a ferromagnetic powder and a binder resin, wherein an ester compound selected from the group consisting of a phthalic acid diester represented by formula (I) and a benzenetricarboxylic acid triester represented by formula (II) is contained in the magnetic layer or coated on the magnetic layer: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represents a straight chain or branched alkyl or alkenyl group and the sum of the carbon atoms of R.sup.1 and R.sup.2 is at least 22; and ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, each represents a straight chain or branched alkyl or alkenyl group and the sum of the carbon atoms of R.sup.3, R.sup.4 and R.sup.5 is at least 22, said ester compound being contained in the magnetic layer in an amount of from 1 to 25% by weight based on the amount of the ferromagnetic power in the magnetic layer or being coated on the magnetic layer in an amount of from 2 to 50 mg/m.sup.2.

    Leader tape and magnetic tape cartridge using the same
    4.
    发明申请
    Leader tape and magnetic tape cartridge using the same 有权
    领带和磁带使用相同

    公开(公告)号：US20050214595A1

    公开(公告)日：2005-09-29

    申请号：US11091401

    申请日：2005-03-29

    申请人： Satoru Hayakawa

    发明人： Satoru Hayakawa

    IPC分类号： G11B5/627 ,  B32B1/00 ,  G11B5/70 ,  G11B23/02 ,  G11B23/037 ,  G11B23/107 ,  G11B23/26

    CPC分类号： G11B23/037 ,  G11B23/107 ,  G11B23/26 ,  Y10T428/31

    摘要： A leader tape comprising a support and a coating layer containing powder and a binder, wherein at least one surface of the leader tape has a center line average surface roughness (Ra) of from 10 to 60 nm, and depression hardness (DH) defined by the following equation (1) of from 60 to 140 kg/mm2 (0.588 to 1.372 GPa): DH=3.7926×10−2[Pmax/(Hmax)2](kg/mm2)  (1) wherein Pmax is a maximum load and Hmax is a maximum displacement amount of an indenter.

    摘要翻译： 一种引导带，其包括载体和包含粉末和粘合剂的涂层，其中引带的至少一个表面具有10至60nm的中心线平均表面粗糙度（Ra），以及由10至60nm定义的凹陷硬度（DH） 下列公式（1）为60至140kg / mm 2（0.588至1.372GPa）：<？在线公式描述=“在线公式”end =“lead”？ > DH = 3.7926×10 -2 [Pmax /（Hmax）2]（kg / mm 2）（1）<？ -formulae description =“In-line Formulas”end =“tail”？>其中Pmax是最大载荷，Hmax是压头的最大位移量。

    Magnetic recording tape favorably employable for computer data storage
    5.
    发明授权
    Magnetic recording tape favorably employable for computer data storage 失效
    适用于计算机数据存储的磁记录磁带

    公开(公告)号：US5958565A

    公开(公告)日：1999-09-28

    申请号：US848596

    申请日：1997-04-28

    申请人： Yasushi Hattori ,  Akira Kasuga ,  Toshio Kawamata ,  Tatsuo Ishikawa ,  Satoru Hayakawa

    发明人： Yasushi Hattori ,  Akira Kasuga ,  Toshio Kawamata ,  Tatsuo Ishikawa ,  Satoru Hayakawa

    IPC分类号： G11B5/70 ,  G11B5/73 ,  G11B5/733 ,  G11B5/735

    CPC分类号： G11B5/7305 ,  G11B5/70 ,  G11B5/733 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/258 ,  Y10T428/265

    摘要： A magnetic recording tape favorably employable for computer data storage has a flexible polymer web, a magnetic recording layer arranged on one surface side of the web, and a backing layer arranged on another surface side of the web, characterized in that the recording tape has a thickness of 2 to 8 .mu.m and shows a Young's modulus of not less than 1,200 kg/mm.sup.2 in its longitudinal direction; and the backing layer has a thickness of 0.2 to 1 .mu.m and is composed of a binder, a carbon black, a non-magnetic powder I having Mohs' scale of hardness of 3 to 4.5 and another non-magnetic powder II having Mohs' scale of hardness of 5 to 9. Between the magnetic layer and the flexible polymer web, a non-magnetic undercoating layer composed of a binder and a non-magnetic powder can be provided.

    摘要翻译： 有利地用于计算机数据存储的磁记录带具有柔性聚合物网，布置在网的一个表面侧的磁记录层和布置在网的另一表面侧上的背衬层，其特征在于记录带具有 厚度为2〜8μm，纵向杨氏模量为1200kg / mm2以上。 背衬层的厚度为0.2〜1μm，由粘合剂，炭黑，莫氏硬度为3〜4.5的非磁性粉末I和具有Mohs' 在硬磁性层和柔性聚合物网之间，可以提供由粘合剂和非磁性粉末组成的非磁性底涂层。

    Magnetic recording medium tape favorably employable for computer data storage
    6.
    发明授权
    Magnetic recording medium tape favorably employable for computer data storage 失效
    适用于计算机数据存储的磁记录介质带

    公开(公告)号：US5888637A

    公开(公告)日：1999-03-30

    申请号：US869314

    申请日：1997-06-05

    申请人： Yutaka Kakuishi ,  Satoru Hayakawa ,  Toru Nakao

    发明人： Yutaka Kakuishi ,  Satoru Hayakawa ,  Toru Nakao

    IPC分类号： B32B7/02 ,  B32B9/00 ,  G11B5/70 ,  G11B5/73 ,  G11B5/735 ,  G11B5/738 ,  G11B5/68

    CPC分类号： G11B5/738 ,  G11B5/70 ,  G11B5/7305 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/265

    摘要： A magnetic recording tape favorably employable for computer data storage has a flexible polymer web, a magnetic recording layer arranged on one surface side of the web via a non-magnetic undercoating layer, and a back-coating layer arranged on another surface side of the web, wherein the magnetic recording tape has a thickness of not more than 8 .mu.m; the non-magnetic undercoating layer has a thickness of 0.5 to 2.0 .mu.m; the magnetic recording layer has a thickness of 0.5 to 1.0 .mu.m; the polymer web has a Young's modules of not lower than 700 kg/mm.sup.2 in its width direction; and the back-coating layer is made of a binder polymer, a carbon black and an inorganic material powder.

    摘要翻译： 适用于计算机数据存储的磁记录带具有柔性聚合物网，通过非磁性底涂层布置在网的一个表面侧的磁记录层，以及布置在网的另一表面侧上的背涂层 ，其中所述磁记录带的厚度不大于8μm; 非磁性底涂层的厚度为0.5〜2.0μm; 磁记录层的厚度为0.5〜1.0μm; 聚合物纤维网在其宽度方向上具有不低于700kg / mm2的杨氏模块; 背涂层由粘合剂聚合物，炭黑和无机材料粉末制成。

    Gradually effective, coated fertilizer
    9.
    发明授权
    Gradually effective, coated fertilizer 失效
    逐渐有效，涂层肥料

    公开(公告)号：US4851027A

    公开(公告)日：1989-07-25

    申请号：US157712

    申请日：1988-02-19

    申请人： Toshikazu Murayama ,  Satoru Hayakawa ,  Shuji Takesue ,  Yorozu Yokomori

    发明人： Toshikazu Murayama ,  Satoru Hayakawa ,  Shuji Takesue ,  Yorozu Yokomori

    IPC分类号： C05G3/00

    CPC分类号： C05G3/0029

    摘要： By coating a solid fertilizer with a coating material comprising an aqueous emulsion of resin as the main component to form a resin film having a glass transition temperature of 60.degree. C. or higher; or by coating a solid fertilizer with a coating material comprising an aqueous emulsion of a thermoplastic resin and a melamine resin, and heating the coated fertilizer at 70.degree. C. or higher; a gradually-effective, coated fertilizer having a distinguished gradual releasability and strong resistance to caking, which have been so far regarded as difficult to be obtained in an aqueous emulsion system, can be prepared.

    摘要翻译： 通过用包含树脂的水性乳液作为主要成分的涂料涂覆固体肥料，以形成玻璃化转变温度为60℃或更高的树脂膜; 或通过用包含热塑性树脂和三聚氰胺树脂的水性乳液的涂料涂覆固体肥料，并在70℃或更高温度下加热涂覆的肥料; 可以制备在水性乳液体系中被认为是难以获得的具有显着的逐渐脱模性和耐结块性的逐渐有效的包覆肥料。