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    Magnetic recording medium
    1.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4871606A

    公开(公告)日：1989-10-03

    申请号：US13286

    申请日：1987-02-11

    Applicant: Takeshi Matsuura ,  Akira Morioka ,  Yoshiyuki Takahira

    Inventor： Takeshi Matsuura ,  Akira Morioka ,  Yoshiyuki Takahira

    IPC: G11B5/708

    CPC classification number: G11B5/7085 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24372 ,  Y10T428/24405 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/31609 ,  Y10T428/31935 ,  Y10T428/31938

    Abstract: A magnetic recording medium having high running stability and good magnetic characteristics without causing an abrasion problem, which comprises a base film, a magnetic layer provided on one surface (i.e. the major surface) of the base film and a back coat layer provided on the other surface (i.e. the back surface) of the base film, the back coat layer comprising a binder and non-magnetic particles dispersed therein, characterized in that the non-magnetic particles comprise at least one soft inorganic pigment having a hardness of less than 5 in Mohs' scale of hardness and at least one hard inorganic pigment of not less than 5 in Mohs' scale of hardness and of not more than 0.2 .mu.m in average particle size in a weight ratio of the soft pigment to the hard pigment of 99:1 to 50:50.

    Abstract translation: 一种具有高运行稳定性和良好磁特性而不引起磨损问题的磁记录介质，其包括基膜，设置在基膜的一个表面（即主表面）上的磁性层和设置在另一个上的背涂层 基底膜的表面（即背面），背涂层包含粘合剂和分散在其中的非磁性颗粒，其特征在于，非磁性颗粒包含至少一种硬度小于5的软质无机颜料 莫氏硬度和至少一种硬摩尔硬度为5以上的硬质无机颜料，平均粒径为0.2μm以下，软着色剂与硬质颜料的重量比为99： 1到50:50。

    Magnetic recording medium
    3.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4716076A

    公开(公告)日：1987-12-29

    申请号：US743679

    申请日：1985-06-11

    Applicant: Akira Morioka ,  Takeshi Matsuura ,  Yoshiyuki Takahira

    Inventor： Akira Morioka ,  Takeshi Matsuura ,  Yoshiyuki Takahira

    IPC: C09C1/48 ,  C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  G11B5/708 ,  G11B5/714

    CPC classification number: G11B5/70642 ,  G11B5/70636 ,  G11B5/708 ,  G11B5/714 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/265

    Abstract: Magnetic recording medium having a magnetic layer in which magnetic powder of the magnetic layer includes iron oxide magnetic powder with more than 30 m.sup.2 /g specific surface area measured by BET method, chromium dioxide (CrO.sub.2) magnetic powder with more than 30 m.sup.2 /g specific surface area measured by BET method, and the rate of the chromium dioxide powder is within a range more than 3% to less than 20% by weight in the total amount of the magnetic powder in the magnetic powder. Said magnetic layer further includes carbon black.

    Abstract translation: 具有磁性层的磁性记录介质，其中磁性层的磁性粉末包括通过BET法测量的比表面积超过30m 2 / g的氧化铁磁性粉末，具有大于30m 2 / g的特定的二氧化铬（CrO 2）磁性粉末 通过BET法测定的表面积，二氧化铬粉末的比例在磁粉中的磁粉总量的3〜20重量％的范围内。 所述磁性层还包括炭黑。

    Method of manufacturing a cellulose acetate membrane and the membrane so produced
    5.
    发明授权
    Method of manufacturing a cellulose acetate membrane and the membrane so produced 失效
    制造醋酸纤维素膜的方法和如此制造的膜

    公开(公告)号：US4744807A

    公开(公告)日：1988-05-17

    申请号：US887728

    申请日：1986-07-21

    Applicant: Bhupender S. Minhas ,  Takeshi Matsuura ,  Srinivasa Sourirajan

    Inventor： Bhupender S. Minhas ,  Takeshi Matsuura ,  Srinivasa Sourirajan

    IPC: B01D67/00 ,  B01D69/02 ,  B01D71/16 ,  B01D53/22 ,  C08J9/28 ,  C08J9/36

    CPC classification number: B01D67/0095 ,  B01D67/0009 ,  B01D69/02 ,  B01D71/16 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/022

    Abstract: A cellulose acetate membrane is provided, capable of separating gaseous hydrogen from a gaseous mixture of hydrogen and hydrocarbon, by casting a 0.02 to 0.05 cm cellulose acetate film into an atmosphere at 20.degree. to 40.degree. C. and a relative humidity of 30 to 70%, from a casting solution at 0.degree. to 20.degree. C. and comprising 10 to 20 wt % cellulose acetate, 60 to 80 wt % acetone, 0.5 to 0.2 wt % magnesium perchlorate, balance water, then evaporating the solvent to form a membrane from the film, then gelling the membrane in ice cold water, then shrinking the membrane at 60.degree. to 90.degree. C. to produce a water wet membrane having an average pore radius less than 7 .ANG., then replacing the water in the membrane sequentially at the laboratory temperature (about 20.degree. to 25.degree. C.) first with aqueous alcohol (isopropyl plus water) and secondly with nonaqueous alcohol (isopropyl), then replacing the alcohol in the membrane with a nonaqueous, readily volatile organic solvent (hexane), and finally evaporating the nonaqueous solvent at laboratory temperature (about 20.degree. to 25.degree. C.) to produce a membrane having a pore radius in the range 1.5 to 5.0 .ANG. and a standard deviation in the range 0.5 to 5.5 .ANG., according to the definition of Gaussian normal distribution.

    Abstract translation: 提供一种乙酸纤维素膜，其能够通过将0.02至0.05厘米的乙酸纤维素膜在20-40℃的气氛和相对湿度为30至70℃的气氛中分离出氢气和烃的气体混合物中的气态氢 ％，从0℃至20℃的浇铸溶液中，包含10至20重量％的乙酸纤维素，60至80重量％的丙酮，0.5至0.2重量％的高氯酸镁，余量的水，然后蒸发溶剂以形成膜 然后将膜从冰冷的水中凝胶化，然后在60℃至90℃下收缩膜，得到平均孔半径小于7安培的水湿膜，然后按顺序替换膜中的水 实验室温度（约20℃〜25℃）先用含水醇（异丙基加水），其次用非水醇（异丙基），然后用非水易挥发性有机溶剂（己烷）代替膜中的醇， 和 最后在实验室温度（约20°至25℃）下蒸发非水溶剂，以产生孔径在1.5至5.0安培范围内的膜，标准偏差范围为0.5至5.5安培，根据 高斯正态分布。

    Hydrophilic surface modifying macromolecules (H-phil SMM) and H-phil SMM blended membranes
    8.
    发明申请
    Hydrophilic surface modifying macromolecules (H-phil SMM) and H-phil SMM blended membranes 审中-公开
    亲水表面改性大分子（H-phil SMM）和H-phil SMM混合膜

    公开(公告)号：US20050176893A1

    公开(公告)日：2005-08-11

    申请号：US11036216

    申请日：2005-01-18

    Applicant: Dipak Rana ,  Takeshi Matsuura ,  Roberto Narbaitz ,  Chaoyang Feng ,  Hai Nguyen

    Inventor： Dipak Rana ,  Takeshi Matsuura ,  Roberto Narbaitz ,  Chaoyang Feng ,  Hai Nguyen

    IPC: C08F2/00 ,  C08G18/10 ,  C08G18/48

    CPC classification number: C08G18/4833 ,  C08G18/10 ,  C08G18/4825 ,  C08G18/48

    Abstract: The present invention provides hydrophilic surface modifying macromolecules (H-phil SMM) and H-phil SMM and blended membranes produced incorporating the hydrophilic surface modifying macromolecules. The membranes include a hydrophilic base polymer, and the hydrophilic surface modifying macromolecules (H-phil SMM) which impart surface hydrophilic properties to the membrane. The membranes produced with the surface modifying macromolecules give polymer membranes useful in the separation of water from a solution containing volatile organic compounds and water.

    Abstract translation: 本发明提供了亲水表面改性大分子（H-phil SMM）和H-phil SMM以及掺入亲水表面改性大分子的共混膜。 膜包括亲水性基础聚合物和赋予膜表面亲水性质的亲水性表面改性大分子（H-phil SMM）。 用表面改性大分子生产的膜产生聚合物膜，可用于从含有挥发性有机化合物和水的溶液中分离水。

    Reverse osmosis membrane of cellulosic material
    9.
    发明授权
    Reverse osmosis membrane of cellulosic material 失效
    纤维素材料的反渗透膜

    公开(公告)号：US4814084A

    公开(公告)日：1989-03-21

    申请号：US239349

    申请日：1988-09-01

    Applicant: Brian Farnand ,  Takeshi Matsuura ,  Srinivasa Sourirajan

    Inventor： Brian Farnand ,  Takeshi Matsuura ,  Srinivasa Sourirajan

    IPC: B01D71/10 ,  C08L1/02 ,  B01D13/04

    CPC classification number: B01D71/10 ,  C08L1/02 ,  Y10S264/48 ,  Y10S264/62

    Abstract: There is provided a method of manufacturing cellulose membranes with pore radii less than 30.times.10.sup.-10 m, suitable for reverse osmosis applications. The method comprises dissolving a cellulosic material in a DMSO/PF solvent at a temperature about 125.degree. C. for about 90 min., cooling and casting the solution at room temperature, evaporating the solvent at a temperature of 140.degree.-180.degree. C. and gelling the resulting membrane in a protic solvent, e.g. ethanol or water.

    Abstract translation: 提供了一种制造孔径小于30×10 -10 m的纤维素膜的方法，适用于反渗透应用。 该方法包括在约125℃的温度下将纤维素材料溶解在DMSO / PF溶剂中约90分钟，在室温下冷却并浇注该溶液，在140-180℃的温度下蒸发溶剂。 并将所得膜凝胶化在质子溶剂中，例如 乙醇或水。

    Method of concentrating natural fruit juices by reverse osmosis
    10.
    发明授权
    Method of concentrating natural fruit juices by reverse osmosis 失效
    通过反渗透浓缩天然果汁的方法

    公开(公告)号：US4322448A

    公开(公告)日：1982-03-30

    申请号：US114700

    申请日：1980-01-23

    Applicant: Takeshi Matsuura ,  Pierre Blais ,  Arthur G. Baxter ,  Srinivasa Sourirajan

    Inventor： Takeshi Matsuura ,  Pierre Blais ,  Arthur G. Baxter ,  Srinivasa Sourirajan

    IPC: A23L2/08 ,  A23L2/28

    CPC classification number: A23L2/085

    Abstract: A reverse osmosis method of concentrating fruit juices wherein a major portion of the fruit juice sugars are removed in a reverse osmosis first stage from the fruit juice at about room temperature and a pressure in the range 500 to 1500 psi, using porous cellulose acetate membrane material, while flavor compounds are removed in a reverse osmosis second stage from the separated water in liquid form therefrom at a temperature in the range 0.degree. C. to about room temperature and a pressure substantially in the range 50 to 1000 psi using asymmetric, porous, polymeric membrane material which is non-polar relative to the membrane material of the first stage as determined by .delta..sub.d of the solubility parameter of the membrane materials. The membrane material of the second stage is preferably at least as polar as the membrane material of the first stage and is preferably of a material selected from the group consisting of cellulose acetate propionate, cellulose acetate butyrate, ethyl cellulose, aromatic polyamide, aromatic polyhydrazide and aromatic polyamide-polyhydrazide copolymer. Preferably the fruit juice fed to the first stage is at a temperature in the range 15.degree. to 30.degree. C. and the separated water fed to the second stage is at a temperature in the range 5.degree. to 10.degree. C.

    Abstract translation: 浓缩果汁的反渗透方法，其中大部分果汁糖在第一阶段的反渗透中从大约室温和500至1500psi范围内的压力下从果汁中去除，使用多孔醋酸纤维素膜材料 而在反渗透第二阶段中的风味化合物在液体形式的分离水中在0℃至约室温的温度和基本上在50至1000psi范围内的压力下从不渗透的，多孔的， 聚合物膜材料，其相对于第一阶段的膜材料是非极性的，由膜材料的溶解度参数的δd确定。 第二级的膜材料优选至少与第一级的膜材料一样极性，并且优选为选自以下的材料：乙酸丙酸纤维素，乙酸丁酸纤维素，乙基纤维素，芳族聚酰胺，芳族聚酰肼和 芳族聚酰胺 - 聚酰肼共聚物。 优选地，进料到第一阶段的果汁处于15℃至30℃的温度，并且进入第二阶段的分离的水的温度为5℃至10℃。

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