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11. 发明授权

US4857402A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4857402A
公开(公告)日：1989-08-15
申请号：US33704
申请日：1987-04-03
申请人： Yasuo Nishikawa , Hajime Miyazuka , Nobuo Tsuji
发明人： Yasuo Nishikawa , Hajime Miyazuka , Nobuo Tsuji
IPC分类号： G11B5/708 , C09D5/23 , G11B5/71
CPC分类号： G11B5/71 , Y10S428/90 , Y10T428/265
摘要： A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer containing ferromagnetic particles and a binder, wherein the magnetic layer contains at least one lubricating agent selected from the group consisting of a salt of a sulfonic acid and a salt of sulfuric acid ester.
摘要翻译：一种磁记录介质，包括在其上设置有包含铁磁颗粒和粘合剂的磁性层的非磁性载体，其中所述磁性层含有至少一种选自磺酸盐和硫酸盐的润滑剂酸酯。

12. 发明授权

US4657817A Magnetic recording material 失效
标题翻译：磁记录材料
公开(公告)号：US4657817A
公开(公告)日：1987-04-14
申请号：US558673
申请日：1983-12-06
申请人： Tsutomu Okita , Kyoichi Naruo , Nobuo Tsuji , Teruo Nakagawa , Kiyoshi Murase , Takahisa Ogasawara
发明人： Tsutomu Okita , Kyoichi Naruo , Nobuo Tsuji , Teruo Nakagawa , Kiyoshi Murase , Takahisa Ogasawara
IPC分类号： C08F290/00 , C08F299/06 , C08G18/42 , C08G18/67 , C08L75/16 , C09D5/23 , C09D175/04 , C09D175/14 , G11B5/702 , G11B5/70
CPC分类号： G11B5/7026 , C08G18/42 , C08G18/672 , C08L75/16 , G11B5/7021 , Y10S428/90 , Y10T428/31609
摘要： There is provided a magnetic recording material produced by coating on a support a magnetic coating composition which contains as main components a magnetic powder and a binder, the binder comprising an urethane acrylate synthesized using a polyester polyol having a particular structure, and by irradiating the resulting magnetic coat with electron beams to harden it. The polyester polyol contains polyhydric alcohol component, 50 mole % or more of which is a dihydric alcohol selected from the class (A) described below, and/or polybasic acid component, 50 mole % or more of which is a dibasic acid selected from the class (B) described below. The urethane acrylate is synthesized under such a condition that it may have two or more of (meth)acryloyl groups per molecule. Thus, improvements in electromagnetic properties and in durability are attained.Class (A): Alkyl-substituted aliphatic dihydric alcohols, alicyclic dihydric alcohols, and dihydric alcohols made by addition of alkylene oxides to alicyclic or aromatic dihydric alcohols.Class (B): Alicyclic dicarboxylic acids and aromatic dicarboxylic acids.
摘要翻译：提供了一种通过在载体上涂覆磁性涂料组合物而制备的磁记录材料，磁性涂料组合物含有作为主要组分的磁性粉末和粘合剂，所述粘合剂包含使用具有特定结构的聚酯多元醇合成的聚氨酯丙烯酸酯，并且通过照射所得到的磁性涂层用电子束硬化。聚酯多元醇含有多元醇成分，其中50摩尔％以上是选自下述（A）的二元醇，和/或多元酸成分，50摩尔％以上的二元酸选自（B）类。氨基甲酸酯丙烯酸酯在每分子可以具有两个以上（甲基）丙烯酰基的条件下合成。因此，获得了电磁特性和耐久性的改善。（A）类：烷基取代的脂族二元醇，脂环族二元醇和通过将环氧烷烃加成到脂环族或芳族二元醇中制得的二元醇。类（B）：脂环族二羧酸和芳族二羧酸。

13. 发明授权

US4576866A Magnetic recording material 失效
标题翻译：磁记录材料
公开(公告)号：US4576866A
公开(公告)日：1986-03-18
申请号：US592671
申请日：1984-03-23
申请人： Tsutomu Okita , Nobuo Tsuji , Yoshito Mukaida
发明人： Tsutomu Okita , Nobuo Tsuji , Yoshito Mukaida
IPC分类号： C08L75/16 , C09D5/23 , C09D101/18 , C09D127/04 , C09D127/06 , C09D175/04 , G11B5/702 , G11B5/70
CPC分类号： G11B5/7026 , C08L75/16 , G11B5/7022 , Y10S428/90 , Y10T428/265 , Y10T428/31609 , Y10T428/31935
摘要： There is provided a magnetic recording material which comprises a support and a magnetic layer coated thereon. The magnetic layer contains as its binder, a combination of at least one vinyl chloride-vinyl acetate-based copolymer characterized by its --CO.sub.2 H content or cellulose dinitrate, at least one urethane acrylate having a particular chemical structure, and at least one low molecular weight compound having two or more acryloyl or methacryloyl groups. The magnetic layer is hardened by beam irradiation. Thus, marked increase in dispersibility of ferromagnetic powders, improvement in electromagnetic transformation characteristics and sharp increase in durability are attained.
摘要翻译：提供了一种磁记录材料，其包括载体和涂覆在其上的磁性层。磁性层包含作为其粘合剂的至少一种以其-CO 2 H含量或硝酸纤维素为特征的氯乙烯 - 乙酸乙烯酯基共聚物，至少一种具有特定化学结构的氨基甲酸酯丙烯酸酯和至少一种低分子量具有两个以上丙烯酰基或甲基丙烯酰基的化合物。磁性层通过光束照射而硬化。因此，铁磁粉末的分散性显着增加，电磁转变特性的提高和耐久性急剧增加。

14. 发明授权

US4448842A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4448842A
公开(公告)日：1984-05-15
申请号：US345848
申请日：1982-02-04
申请人： Nobutaka Yamaguchi , Nobuo Tsuji , Masaaki Fujiyama
发明人： Nobutaka Yamaguchi , Nobuo Tsuji , Masaaki Fujiyama
IPC分类号： C09D5/23 , C09D7/12 , G11B5/708 , G11B5/70
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/25 , Y10T428/257 , Y10T428/266
摘要： A magnetic recording medium having a magnetic layer formed on a non-magnetic base is disclosed. The magnetic layer comprises (1) magnetic particles, (2) an abrasive having a Mohs hardness of 6 or more, (3) calcium carbonate, (4) an aliphatic acid and (5) an aliphatic acid ester.
摘要翻译：公开了一种在非磁性基底上形成有磁性层的磁记录介质。磁性层包括（1）磁性颗粒，（2）莫氏硬度为6以上的磨料，（3）碳酸钙，（4）脂肪酸和（5）脂肪酸酯。

15. 发明授权

US4425400A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4425400A
公开(公告)日：1984-01-10
申请号：US364029
申请日：1982-03-31
申请人： Nobutaka Yamaguchi , Masaaki Fujiyana , Nobuo Tsuji , Norio Nasu
发明人： Nobutaka Yamaguchi , Masaaki Fujiyana , Nobuo Tsuji , Norio Nasu
IPC分类号： C09D5/23 , C09D7/12 , G11B5/708 , H01F10/02
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/257 , Y10T428/31663 , Y10T428/31678
摘要： In a magnetic recording medium comprising a magnetic recording layer on the surface of a non-magnetic support member, an abrasive having a Mohs' hardness of at least 6 and needle-shaped .alpha.-Fe.sub.2 O.sub.3 are incorporated in the magnetic layer, thus improving the coating durability and decreasing the head abrasion, jitter and noise.
摘要翻译：在非磁性支撑体表面含磁记录层的磁记录介质中，具有莫氏硬度至少为6的磨粒和针状α-Fe2O3的磁记录介质结合在磁性层中，从而改善涂层耐用性和降低头部磨损，抖动和噪音。

16. 发明授权

US4411966A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4411966A
公开(公告)日：1983-10-25
申请号：US372686
申请日：1982-04-28
申请人： Nobutaka Yamaguchi , Nobuo Tsuji , Yasutoshi Okuzawa , Norio Nasu , Masaaki Fujiyama
发明人： Nobutaka Yamaguchi , Nobuo Tsuji , Yasutoshi Okuzawa , Norio Nasu , Masaaki Fujiyama
IPC分类号： C09D5/23 , G11B5/71 , G11B5/73 , G11B5/70 , H01F10/02
CPC分类号： G11B5/71 , Y10S428/90
摘要： The present invention relates to an improved magnetic recording medium comprising a magnetic recording layer on the surface of a non-magnetic support, in which the magnetic recording layer contains a fatty acid, high viscosity silicone oil and fatty acid ester.
摘要翻译：本发明涉及一种改进的磁记录介质，其包括在非磁性载体的表面上的磁记录层，其中磁记录层含有脂肪酸，高粘度硅油和脂肪酸酯。

17. 发明授权

US4056396A Layers used to prevent reticulation in photographic elements 失效
公开(公告)号：US4056396A
公开(公告)日：1977-11-01
申请号：US578069
申请日：1975-05-16
申请人： Ikutaro Horie , Takushi Miyazako , Shinji Sakaguchi , Nobuo Tsuji , Nagao Kameji
发明人： Ikutaro Horie , Takushi Miyazako , Shinji Sakaguchi , Nobuo Tsuji , Nagao Kameji
IPC分类号： G03C1/04 , C08F16/00 , C08F16/14 , C08F20/00 , C08F20/52 , G03C1/053 , G03C1/76 , G03C3/00
CPC分类号： G03C1/7614 , G03C1/053
摘要： A photographic light-sensitive material including a support, a non-light sensitive uppermost layer consisting of at least one organic synthetic high polymer compound as a film forming material and at least one light-sensitive layer between the support and the uppermost layer, said organic high polymer compound being selected from the group consisting of the following polymers (A) to (F):polymer (A) comprising repeating units a.sub.1 and a.sub.2 ;______________________________________ a.sub.1 : ##STR1## 80 - 97 mol% a.sub.2 : ##STR2## 3 - 20 mol% ______________________________________ Wherein M represents a cation, and m represents 0, 3 or 4;Polymer (B) comprising repeating units b.sub.1, b.sub.2 and b.sub.3 ;______________________________________ b.sub.1 : ##STR3## 5 - 30 mol% b.sub.2 : ##STR4## 5 - 75 mol% b.sub.3 : ##STR5## 20 - 65 mol% ______________________________________ Wherein R.sub.1 and R.sub.2 each represents --CH.sub.3 or --C.sub.2 H.sub.5, R.sub.3 and R.sub.5 each represents --H or --CH.sub.3, and R.sub.4 represents --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 or --C.sub.4 H.sub.9 ;polymer (C) comprising repeating units c.sub.1 and c.sub.2 ;______________________________________ c.sub.1 : ##STR6## 10 - 40 mol% c.sub.2 : ##STR7## 60 - 90 mol% ______________________________________ Wherein R.sub.6 represents --H or --CH.sub.3, and Z represents --COOH, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --COOC.sub.3 H.sub.7, --COOC.sub.4 H.sub.9 or --CONH.sub.2 ;polymer (D) comprising repeating units d.sub.1 and d.sub.2 ;______________________________________ d.sub.1 : ##STR8## 10 - 40 mol% d.sub.2 : ##STR9## 60 - 90 mol% ______________________________________ Wherein R.sub.7 represents --H or --CH.sub.3 ;polymer (E) comprising repeating units e.sub.1 and e.sub.2 ;______________________________________ e.sub.1 : ##STR10## 20 - 60 mol% e.sub.2 : ##STR11## 40 - 80 mol% ______________________________________ wherein R.sub.8 and R.sub.9 each represents --H or --CH.sub.3, and X represents --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 or --C.sub.4 H.sub.9 ; andpolymer (F) comprising repeating unit f.sub.1 ;______________________________________ f.sub.1 : ##STR12## wherein Y represents --CH.sub.3 or --COCH.sub.3, R.sub.10 represents --H or --C.sub.n H.sub.2n+1, n being an integer of 1 to 12, said organic synthetic high polymer compound being insoluble to a processing solutions

18. 发明授权

US4668568A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4668568A
公开(公告)日：1987-05-26
申请号：US878405
申请日：1986-06-20
申请人： Masaaki Fujiyama , Nobuo Tsuji , Nobutaka Yamaguichi
发明人： Masaaki Fujiyama , Nobuo Tsuji , Nobutaka Yamaguichi
IPC分类号： C09D5/23 , G11B5/708
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/25 , Y10T428/257 , Y10T428/259 , Y10T428/31609 , Y10T428/31971
摘要： This invention provide a magnetic recording medium with well-balanced excellent properties as to video head abrasion, still life, video S/N and drop out, which comprises a non-magnetic support and a magnetic recording layer containing a ferromagnetic powder, a binder and (A) at least one inorganic compound powder selected from the group consisting of Cr.sub.2 O.sub.3, SiC and mixtures thereof and (B) at least one inorganic compound powder selected from the group consisting of Al.sub.2 O.sub.3, TiO.sub.2, SiO.sub.2, ZnO and mixtures thereof.
摘要翻译：本发明提供了一种磁记录介质，其具有视频磁头磨损，静止时间，视频S / N和退出的良好平衡的优异特性，其包括非磁性支持和含有铁磁性粉末，粘合剂和（A）至少一种选自Cr 2 O 3，SiC及其混合物的无机化合物粉末和（B）至少一种选自Al 2 O 3，TiO 2，SiO 2，ZnO及其混合物的无机化合物粉末。

19. 发明授权

US4487802A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4487802A
公开(公告)日：1984-12-11
申请号：US459089
申请日：1983-01-19
申请人： Takahito Miyoshi , Toshimitu Okutu , Masaaki Fujiyama , Sumitaka Tatsuta , Nobuo Tsuji
发明人： Takahito Miyoshi , Toshimitu Okutu , Masaaki Fujiyama , Sumitaka Tatsuta , Nobuo Tsuji
IPC分类号： C09D109/06 , G11B5/73 , G11B5/735 , G11B5/738 , G11B5/62 , G11B5/68
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/265 , Y10T428/31797 , Y10T428/31931 , Y10T428/31938
摘要： A magnetic recording medium is disclosed. The medium is comprised of a non-magnetic flexible support having a subbing layer coated thereon with a magnetic layer coated on the subbing layer. The subbing layer is comprised of a copolymer of a diolefin and a vinyl monomer. The subbing layer provides excellent adhesiveness between the support and the magnetic layer and can be produced without the use of organic solvents. Accordingly, the subbing layer can be economically produced without environmental pollution.
摘要翻译：公开了一种磁记录介质。所述介质由非磁性柔性支撑体组成，其上涂覆有涂层在所述底层上的磁性层的底层。底层由二烯烃和乙烯基单体的共聚物组成。底层在支撑体和磁性层之间提供优异的粘合性，并且可以在不使用有机溶剂的情况下制造。因此，可以经济地制造底层而没有环境污染。

20. 发明授权

US4454202A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4454202A
公开(公告)日：1984-06-12
申请号：US315555
申请日：1981-10-27
申请人： Shigeo Komine , Kazuhiko Morita , Nobuo Tsuji
发明人： Shigeo Komine , Kazuhiko Morita , Nobuo Tsuji
IPC分类号： C08L75/04 , C09D5/23 , G11B5/702 , G11B5/70
CPC分类号： G11B5/7022 , C08L75/04 , Y10S428/90 , Y10T428/31511 , Y10T428/31551 , Y10T428/31565 , Y10T428/31786 , Y10T428/31935
摘要： A magnetic recording medium having a magnetic paint applied to a base is disclosed. The magnetic paint contains a three-component binder which comprises 30 to 70% of polyurethane having a terminal OH group, 10 to 50% of an epichlorohydrin/diphenylolpropane polycondensate and 10 to 50% of a vinyl chloride/vinyl acetate copolymer, vinyl chloride/vinyl acetate/maleic acid copolymer or vinyl chloride/vinyl acetate/vinyl alcohol copolymer, the percentage being based on the weight of the binder.
摘要翻译：公开了一种具有施加到基座上的磁性涂料的磁记录介质。磁性漆包含三组分粘合剂，其包含30至70％的具有末端OH基团的聚氨酯，10至50％的表氯醇/二苯基丙烷缩聚物和10至50％的氯乙烯/乙酸乙烯酯共聚物，氯乙烯/ 乙酸乙烯酯/马来酸共聚物或氯乙烯/乙酸乙烯酯/乙烯醇共聚物，其百分比基于粘合剂的重量。

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