公开(公告)号：EP1231599A1

公开(公告)日：2002-08-14

申请号：EP02250787.5

申请日：2002-02-06

申请人： Toda Kogyo Corporation

发明人： Hayashi, Kazuyuki ,  Iwasaki, Keisuke ,  Kamigaki, Mamoru ,  Morii, Hiroko

IPC分类号： G11B5/712

CPC分类号： G11B5/712 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2995 ,  Y10T428/2998

摘要： A magnetic recording medium comprising:

a non-magnetic base film; and
a magnetic recording layer comprising a binder resin and magnetic composite particles which have an average particle diameter of from 0.02 to 0.70 µm and which comprise:

(a) magnetic core particles,
(b) a coating provided on the surface of said magnetic core particles, comprising at least one organosilicon compound selected from:

(1) organosilane compounds obtainable from alkoxysilane compounds, and
(2) polysiloxanes or modified polysiloxanes, and

(c) a phthalocyanine-based pigment coat which is provided on said coating (b) in an amount of 1 to 100 parts by weight per 100 parts by weight of said magnetic core particles (a).

摘要翻译： 一种磁记录介质，包括：非磁性基膜; 以及包含平均粒径为0.02-0.70μm的粘合剂树脂和磁性复合颗粒的磁记录层，它包括：（a）磁芯颗粒，（b）设置在所述磁芯的表面上的涂层 颗粒，其包含至少一种选自以下的有机硅化合物：（1）可从烷氧基硅烷化合物获得的有机硅烷化合物，和（2）聚硅氧烷或改性聚硅氧烷，和（c）在所述涂层（b）上设置的酞菁类颜料涂层 每100重量份的所述磁芯颗粒（a）为1至100重量份。

公开(公告)号：EP1102246A1

公开(公告)日：2001-05-23

申请号：EP00310101.1

申请日：2000-11-14

申请人： Toda Kogyo Corporation

发明人： Hayashi, Kazuyuki ,  Morii, Hiroko ,  Kamigaki, Mamoru ,  Tanaka, Yasuyuki ,  Iwasaki, Keisuke

IPC分类号： G11B5/712

CPC分类号： G11B5/712 ,  Y10S428/90 ,  Y10S428/926 ,  Y10T428/257 ,  Y10T428/26 ,  Y10T428/2995

摘要： A magnetic recording medium comprises a non-magnetic base film; and a magnetic recording layer comprising a binder resin and black magnetic acicular composite particles having an average particle diameter of 0.051 to 0.35 µm and comprising:

magnetic acicular cobalt-coated iron oxide particles or magnetic acicular metal particles containing iron as a main component,
a coating on the surface of the magnetic acicular particles, comprising at least one organosilicon compound selected from:

(1) organosilane compounds obtainable from alkoxysilane compounds, and
(2) polysiloxanes or modified polysiloxanes, and

a carbon black coat which is provided on the said coating in an amount of from more than 10 to 40 parts by weight per 100 parts by weight of said magnetic acicular particles.

摘要翻译： 磁记录介质包括非磁性基膜; 以及包含粘合剂树脂和平均粒径为0.051〜0.35μm的黑色磁针状复合粒子的磁记录层，其特征在于，包括：针状钴涂覆的氧化铁粒子或以铁为主要成分的磁针状金属粒子， 包含至少一种选自以下的有机硅化合物的有机硅化合物：（1）由烷氧基硅烷化合物得到的有机硅烷化合物和（2）聚硅氧烷或改性聚硅氧烷，以及设置在所述涂层上的炭黑涂层 其量为每100重量份所述磁针状颗粒大于10至40重量份。

公开(公告)号：EP1849839A2

公开(公告)日：2007-10-31

申请号：EP07251761.8

申请日：2007-04-26

申请人： TODA KOGYO CORPORATION

发明人： Uchida, Naoki ,  Iwai, Ryo ,  Kamigaki, Mamoru ,  Uemoto, Shinji ,  Aoki, Koso ,  Misawa, Hiromitsu

IPC分类号： C09C1/24 ,  C01G49/08 ,  H01F1/36

CPC分类号： H01F1/36 ,  C01G49/08 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/42 ,  C08K3/22 ,  C08K9/02 ,  C09C1/24 ,  C09D7/62 ,  C09D7/68 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/107 ,  Y10S428/90 ,  Y10T428/257 ,  Y10T428/2991 ,  Y10T428/2993

摘要： The present invention relates to black magnetic iron oxide particles comprising core particles and a surface layer formed on a surface of the core particles which is made of a compound of aluminium and at least one alkali earth metal selected from Mg, Ca, Sr and Ba, in which the content of the at least one alkali earth metal present in the surface layer is from 100 ppm to 1000 ppm on the basis of the whole weight of the black magnetic iron oxide particles; the content of aluminum present in the surface layer is from 1000 ppm to 20000 ppm on the basis of the whole weight of the black magnetic iron oxide particles; and the ratio [A/B] of the content [A (ppm)] of aluminum to the content [B (ppm)] of the at least one alkali earth metal present in the surface layer is from 1 to 100.

摘要翻译： 本发明涉及包含核心颗粒的黑色磁性氧化铁颗粒和由铝化合物和至少一种选自Mg，Ca，Sr和Ba的碱土金属制成的芯颗粒表面上形成的表面层， 其中存在于表层中的至少一种碱土金属的含量基于黑色磁性氧化铁颗粒的总重量为100ppm至1000ppm; 基于黑色磁性氧化铁颗粒的总重量，存在于表面层中的铝的含量为1000ppm至20000ppm; 铝的含量[A（ppm）]与表面层中存在的至少一种碱土金属的含量[B（ppm）]的比[A / B]为1〜100。

公开(公告)号：EP1253584A1

公开(公告)日：2002-10-30

申请号：EP02252909.3

申请日：2002-04-25

申请人： Toda Kogyo Corporation

发明人： Kamigaki, Mamoru ,  Ishitani, Seiji ,  Morii, Hiroko

IPC分类号： G11B5/712 ,  G11B5/73 ,  G11B5/708

CPC分类号： G11B5/712 ,  G11B5/708 ,  G11B5/738 ,  Y10T428/2995

摘要： A magnetic recording medium comprising:

a non-magnetic base film; and
a magnetic recording layer which is provided on the non-magnetic base film and which contains a filler, a binder resin and surface-modified magnetic particles having an average particle diameter of from 0.01 to 0.7 µm and comprising magnetic particles and an organosilane compound, obtainable from a silane monomer, coated on surface of the magnetic particles by means of a dry-mixing method.

摘要翻译： 一种磁记录介质，包括：非磁性基膜; 以及磁性记录层，其设置在所述非磁性基膜上，并且含有填料，粘合剂树脂和平均粒径为0.01〜0.7μm的表面改性磁性粒子，其包含磁性粒子和有机硅烷化合物 由硅烷单体获得，通过干式混合法涂覆在磁性颗粒的表面上。

公开(公告)号：EP0699721B1

公开(公告)日：2002-05-15

申请号：EP95306134.8

申请日：1995-09-01

申请人： Toda Kogyo Corporation

发明人： Hayashi, Kazuyuki ,  Morii, Hiroko ,  Sakoda, Mineko ,  Ohsugi, Minoru, Shato Hashimoto 203 ,  Kamigaki, Mamoru

IPC分类号： C09C3/12 ,  C09D7/12 ,  G11B5/74 ,  H01F1/00

CPC分类号： B82Y30/00 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/32 ,  C01P2004/38 ,  C01P2004/41 ,  C01P2004/42 ,  C01P2004/50 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/60 ,  C01P2006/82 ,  C08K3/22 ,  C08K9/08 ,  C09C3/006 ,  C09C3/08 ,  C09C3/12 ,  C09D7/62 ,  C09D7/68 ,  G11B5/712 ,  Y10T428/2991 ,  Y10T428/2998

摘要： Particles comprising inorganic core particles and, provided on the core particles, at least one polysiloxane modified with at least one selected from polyethers, polyesters and aralkyls, are useful in water-based paints.

公开(公告)号：EP1325944A3

公开(公告)日：2003-07-23

申请号：EP02258637.4

申请日：2002-12-16

申请人： Toda Kogyo Corporation

发明人： Kamigaki, Mamoru ,  Morii, Hiroko ,  Hayashi, Kazuyuki ,  Iwaki, Toru

IPC分类号： C09B67/00 ,  C09C3/00 ,  C09C1/30 ,  C09C1/04 ,  C09C1/02 ,  C09C1/36

CPC分类号： B82Y30/00 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C09B67/0002 ,  C09B67/0022 ,  C09C1/021 ,  C09C1/043 ,  C09C1/309 ,  C09C1/3692 ,  C09C3/006

摘要： A functional material comprising coloring particles having an average primary particle diameter of 1 to 50 nm in a dried state, and having a BET specific surface area value of 30 to 500 m 2 /g and a light transmittance of not less than 80%. The functional material composed of fine coloring particles, exhibits not only an excellent transparency but also a high tinting strength and a clear hue.

摘要翻译： 一种功能材料，其包含在干燥状态下具有1至50nm的平均一次粒径的着色颗粒，并且具有30至500m 2 / g的BET比表面积值和不小于80％的透光率。 由着色微粒构成的功能性材料不仅透明性优异，而且着色力高，色调鲜明。

公开(公告)号：EP1048698A1

公开(公告)日：2000-11-02

申请号：EP00303434.5

申请日：2000-04-25

申请人： Toda Kogyo Corporation

发明人： Hayashi, Kazuyuki ,  Morii, Hiroko ,  Kamigaki, Mamoru ,  Ishitani, Seiji

IPC分类号： C09C3/12 ,  C09C1/24 ,  G11B5/708

CPC分类号： B82Y30/00 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/32 ,  C01P2004/41 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2004/86 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/42 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/80 ,  C09C1/24 ,  C09C3/006 ,  C09C3/12 ,  G11B5/708 ,  Y10T428/25 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2995

摘要： A magnetic recording medium comprising:

(a) a non-magnetic base film; and
(b) a magnetic recording layer comprising a binder resin, magnetic particles and, as a filler, black composite hematite particles which have an average diameter of from 0.08 to 1.0µm and which comprise:

hematite particles as core particles;
a coating layer provided on the hematite particles, comprising at least one organosilicon compound selected from:

(1) an organosilane compound obtainable from an alkoxysilane compound;
(2) a polysiloxane or modified polysiloxane; and
(3) a fluoroalkyl organosilane compound obtainable from fluoroalkylsilane compound; and

a carbon black coat provided on said coating layer, in an amount from 1 to 30 parts by weight based on 100 parts by weight of said hematite particles.

摘要翻译： 一种磁记录介质，包括：（a）非磁性基膜; 和（b）包含粘合剂树脂，磁性颗粒和作为填料的磁记录层，所述磁记录层包含平均直径为0.08-1.0μm并且包含赤铁矿颗粒作为核颗粒的黑色复合赤铁矿颗粒; 设置在赤铁矿颗粒上的涂层，所述涂层包含选自以下的至少一种有机硅化合物：（1）可由烷氧基硅烷化合物获得的有机硅烷化合物; （2）聚硅氧烷或改性聚硅氧烷; 和（3）由氟代烷基硅烷化合物得到的氟代烷基有机硅烷化合物; 以及设置在所述涂层上的炭黑涂层，其量为100重量份所述赤铁矿颗粒的1-30重量份。

公开(公告)号：EP1102245A1

公开(公告)日：2001-05-23

申请号：EP00310100.3

申请日：2000-11-14

申请人： Toda Kogyo Corporation

发明人： Hayashi, Kazuyuki ,  Morii, Hiroko ,  Kamigaki, Mamoru ,  Ishitani, Seiji

IPC分类号： G11B5/708 ,  C09C3/12 ,  C09C1/24

CPC分类号： B82Y30/00 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/32 ,  C01P2004/41 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2004/86 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/42 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/80 ,  C09C1/24 ,  C09C3/006 ,  C09C3/12 ,  G11B5/708

摘要： A magnetic recording medium comprises a non-magnetic base film; and a magnetic recording layer comprising a binder resin, magnetic particles and a black filler having an average diameter of 0.08 to 1.0 µm and comprising:

hematite particles as core particles;
a coating formed on the surface of said hematite particles, comprising at least one organosilicon compound selected from:

(1) organosilane compounds obtainable from alkoxysilane compounds, and
(2) polysiloxanes or modified polysiloxanes; and

a carbon black coat which is provided on said coating layer in an amount of from more than 30 to 60 parts by weight based on 100 parts by weight of said hematite particles.

摘要翻译： 磁记录介质包括非磁性基膜; 以及包含粘结剂树脂，磁性颗粒和平均直径为0.08至1.0μm的黑色填料的磁记录层，包括：赤铁矿颗粒作为核心颗粒; 包含形成在所述赤铁矿颗粒表面上的涂层，其包含至少一种选自以下的有机硅化合物：（1）可从烷氧基硅烷化合物获得的有机硅烷化合物，和（2）聚硅氧烷或改性聚硅氧烷; 以及基于100重量份的所述赤铁矿颗粒，在所述涂层上以超过30至60重量份的量提供的炭黑涂层。

公开(公告)号：EP1063639A1

公开(公告)日：2000-12-27

申请号：EP00305310.5

申请日：2000-06-23

申请人： Toda Kogyo Corporation

发明人： Hayashi, Kazuyuki ,  Ohsugi, Mineko ,  Kamigaki, Mamoru ,  Morii, Hiroko

IPC分类号： G11B5/712 ,  C09C3/12 ,  C09C1/00 ,  C09C3/10

CPC分类号： G11B5/712 ,  B82Y30/00 ,  C01P2004/01 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/42 ,  C01P2006/80 ,  C09C1/24 ,  C09C3/006

摘要： Magnetic composite particles suitable for use in a magnetic recording layer of magnetic recoding medium comprise:

(a) magnetic core particles having an average particle size of 0.01 to 0.3 µm; and
(b) from 0.1 to 20% by weight, based on the weight of said magnetic core particles, of inorganic particles which have an average particle size of 0.001 to 0.07 µm, which are fixed or anchored on the surface of each magnetic core particle through a silicon compound derivable from a tetraalkoxysilane and which comprise at least one inorganic compound selected from oxides, nitrides, carbides and sulfides containing aluminum, zirconium, cerium, titanium, silicon, boron or molybdenum.

摘要翻译： 适合于在磁记录介质的磁记录层中的磁性复合颗粒包含：（a）具有上的0.3微米到0时01分平均粒径磁性核颗粒; 和（b）0.1至20重量％的，基于所述磁性核颗粒的重量，其具有至0.001平均颗粒尺寸为0时07微米的无机颗粒，其被固定或锚定每个磁芯的表面上的 粒子通过硅化合物从四烷氧基硅烷中导出，并从氧化物，氮化物，碳化物和硫化物含有铝，锆，铈，钛，硅，硼或钼中的至少一种无机化合物，其包含。

公开(公告)号：EP0957474A1

公开(公告)日：1999-11-17

申请号：EP99303761.3

申请日：1999-05-14

申请人： TODA KOGYO CORPORATION

发明人： Hayashi, Kazuyuki ,  Morii, Hiroko ,  Kamigaki, Mamoru ,  Tanaka, Yasuyuki ,  Iwasaki, Keisuke

IPC分类号： G11B5/72 ,  G11B5/712 ,  C09C3/12

CPC分类号： G11B5/712 ,  B82Y30/00 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/50 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2004/82 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/42 ,  C01P2006/60 ,  C01P2006/62 ,  C01P2006/80 ,  C09C3/006 ,  C09C3/12

摘要： A magnetic recording medium comprising:

(a) a non-magnetic base film; and
(b) a magnetic recording layer comprising a binder resin and black magnetic acicular composite particles which have an average particle diameter of 0.051 to 0.72 µm and which comprise:

magnetic acicular particles,
a coating on the surface of said magnetic acicular particles, comprising at least one organosilicon compound selected from:

(1) organosilane compounds obtainable by drying or heat-treating alkoxysilane compounds,
(2) polysiloxanes or modified polysiloxanes, and
(3) fluoroalkyl organosilane compounds obtainable by drying or heat-treating fluoroalkylsilane compounds, and

from 0.5 to 10 parts by weight, per 100 parts by weight of said magnetic acicular particles, of carbon black particles which have a particle size of 0.002 to 0.05 µm and which are adhered to said coating.

摘要翻译： 一种磁记录介质，包括：（a）非磁性基膜; 和（b）包含粘合剂树脂和平均粒径为0.051-0.72μm的黑色磁性复合颗粒的磁性记录层，它包括：磁性针状颗粒，在所述磁性针状颗粒表面上的涂层，其包含在 （1）通过干燥或热处理烷氧基硅烷化合物获得的有机硅烷化合物，（2）聚硅氧烷或改性聚硅氧烷，和（3）通过干燥或热处理氟烷基硅烷化合物获得的氟烷基有机硅烷化合物，和 相对于每100重量份磁性针状颗粒，含有10重量份的粒径为0.002-0.05微米且粘附在所述涂层上的炭黑颗粒。