公开(公告)号：JP2003300938A

公开(公告)日：2003-10-21

申请号：JP2002107464

申请日：2002-04-10

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOBAYASHI TAKESHI ,  KAMEI TAKAHIRO ,  KISHII NORIYUKI ,  KURIHARA KENICHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: C07C69/65 ,  C10M105/54 ,  C10M105/64 ,  C10N30/06 ,  C10N30/08 ,  C10N40/18 ,  G11B5/725

Abstract: PROBLEM TO BE SOLVED: To provide a lubricant for a recording medium, keeping excellent lubricity in various working conditions, retaining lubricating effects for a long period, and therefore capable of giving excellent traveling performance, abrasion resistance, durability, etc., to the recording medium. SOLUTION: A compound of C 18 H 37 -CH(CH 2 COORf)COOC 10 H 6 OH (Rf is a saturated or unsaturated partially-fluorinated alkyl) is, for example, used as the lubricant for the magnetic recording medium. Thus, the magnetic recording medium having the excellent traveling performance, abrasion resistance, and durability is obtained. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：为了提供用于记录介质的润滑剂，在各种工作条件下保持优异的润滑性，长时间保持润滑效果，因此能够提供优异的行驶性能，耐磨性，耐久性等， 到记录介质。 例如，作为磁记录介质的润滑剂使用OH（Rf为饱和或不饱和部分氟化的烷基）。 因此，获得具有优异的行驶性能，耐磨性和耐久性的磁记录介质。 版权所有（C）2004，JPO

公开(公告)号：JP2003082090A

公开(公告)日：2003-03-19

申请号：JP2001280929

申请日：2001-09-17

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KURIHARA KENICHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KOBAYASHI TAKESHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: C10M105/60 ,  C08G65/333 ,  C10M107/44 ,  C10N30/00 ,  C10N30/06 ,  C10N40/18 ,  G11B5/725

Abstract: PROBLEM TO BE SOLVED: To obtain a lubricant for recording media retaining excellent lubricity under various application conditions, maintaining lubricant effect for a long time and having excellent tracking ability, abrasion resistance, durability and the like. SOLUTION: For example, a CF3COOH(CH3)2NC2H4OOC-Rf-COOC2H4N(CH 3)2HOOCCF3 (Rf expresses a fluoropolyether group having 2,000 average molecular weight) is used as the lubricant for magnetic recording media.

Abstract translation: 要解决的问题：为了获得用于在各种应用条件下保持优异润滑性的记录介质的润滑剂，长时间保持润滑剂效果并且具有优异的跟踪能力，耐磨性，耐久性等。 解决方案：例如，使用CF 3 COOH（CH 3）2 NC 2 H 4 OOC-Rf-COOC 2 H 4 N（CH 3）2 OOCCF 3（Rf表示具有2,000个平均分子量的氟聚醚基）作为磁记录介质的润滑剂。

公开(公告)号：JP2003073335A

公开(公告)日：2003-03-12

申请号：JP2001266320

申请日：2001-09-03

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KURIHARA KENICHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KOBAYASHI TAKESHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: C07C69/34 ,  C10M105/40 ,  C10N30/00 ,  C10N30/06 ,  C10N40/18 ,  G11B5/725

Abstract: PROBLEM TO BE SOLVED: To provide a lubricant which holds excellent lubricity under various kinds of use conditions, retains the lubricating effect over a long time, and is useful for recording media having excellent traveling properties, excellent abrasion resistance, excellent durability, and the like.
SOLUTION: A compound of the general formula (1): R
1 CH(COOR
2 )CH
2 COOH (1) (R
1 and R
2 are each a 6 to 30C saturated or unsaturated aliphatic hydrocarbon group), such as C
18 H
37 -CH(COOC
18 H
37 )CH
2 COOH. The compound is used as a lubricant for magnetic recording media.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了提供在各种使用条件下保持优异的润滑性的润滑剂，长期保持润滑效果，并且可用于具有优异的行驶性能，优异的耐磨性，优异的耐久性等的记录介质 。 解决方案：通式（1）的化合物：R 1 CH（COOR 2）CH 2 COOH（1）（R 1和R 2）各自为6至30℃的饱和或不饱和脂族烃基 ），例如C 18 H 37 -CH（COOC 18 H 37）CH 2 COOH。 该化合物用作磁记录介质的润滑剂。

公开(公告)号：JP2003064035A

公开(公告)日：2003-03-05

申请号：JP2001257857

申请日：2001-08-28

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOBAYASHI TAKESHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KURIHARA KENICHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: C07D239/48 ,  C07C219/06 ,  C07C219/34 ,  C07D239/52 ,  C10M105/60 ,  C10M105/64 ,  C10M105/70 ,  C10N30/00 ,  C10N30/06 ,  C10N40/18 ,  G11B5/725

Abstract: PROBLEM TO BE SOLVED: To provide a lubricant for a recording medium holding excellent lubricity under various working conditions, and keeping lubrication effect, and capable of imparting excellent trafficability, abrasion resistance, durability and the like for a long time. SOLUTION: For example, a partially fluorinated alkyl compound such as C12 H25 N(C2 H4 OCOCH(C18 H37 )CH2 COORf)2 or N(C2 H4 OCOCH(C18 H37 )CH2 COORf (Rf is a saturated or unsaturated partially fluorinated alkyl group) is used as a lubricant for a magnetic recording medium.

Abstract translation: 要解决的问题：提供一种在各种工作条件下保持优异润滑性的记录介质的润滑剂，并且保持润滑效果，并且能够长期赋予优异的交通性，耐磨性，耐久性等。 解决方案：例如，部分氟化的烷基化合物如C 12 H 25 N（C 2 H 4 OCOCH（C 18 H 37）CH 2 COOR f）2或N（C 2 H 4 OCOCH（C 18 H 37）CH 2 COOR f（R f是饱和或不饱和的部分氟化烷基 ）用作磁记录介质的润滑剂。

公开(公告)号：JP2003064030A

公开(公告)日：2003-03-05

申请号：JP2001251259

申请日：2001-08-22

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOBAYASHI TAKESHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KURIHARA KENICHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: C07C69/62 ,  C07C69/63 ,  C07C69/635 ,  C07C69/65 ,  C10M105/54 ,  C10N30/00 ,  C10N30/06 ,  C10N40/18 ,  G11B5/725

Abstract: PROBLEM TO BE SOLVED: To provide a lubricant for a recording medium holding excellent lubricity under various working conditions, and keeping lubrication effect, and capable of imparting excellent trafficability, abrasion resistance, durability and the like for a long time.
SOLUTION: For example, C
18 H
37 CH(COOCH(C
11 H
23 )CH
2 COOH)CH
2 COORf (Rf is a saturated or unsaturated partially fluorinated alkyl group) is used as a lubricant for a magnetic recording medium.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种在各种工作条件下保持优异润滑性的记录介质的润滑剂，并且保持润滑效果，并且能够长期赋予优异的交通性，耐磨性，耐久性等。 溶液：例如，使用C18 H37CH（COOCH（C11H23）CH2COOH）CH2 COORf（Rf为饱和或不饱和部分氟化的烷基）作为磁记录介质的润滑剂。

公开(公告)号：JP2002363277A

公开(公告)日：2002-12-18

申请号：JP2001172993

申请日：2001-06-07

Applicant: SONY CORP

Inventor： KOBAYASHI TAKESHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KURIHARA KENICHI

IPC: C10M105/68 ,  C08G65/333 ,  C10M105/70 ,  C10N30/00 ,  C10N30/06 ,  C10N40/18 ,  G11B5/725

Abstract: PROBLEM TO BE SOLVED: To obtain a lubricant for a recording medium keeping excellent lubricity under various conditions in use, having continued lubrication effect for a long time, and giving excellent traveling property, abrasion resistance, durability, and the like. SOLUTION: For example, C18 H37 CH(CONHC6 H5 )CH2 COO-Rf-OCOCH2 CH(CONHC6 H5 )C18 H37 (wherein, Rf is a fluoropolyether group having an average molecular weight of 2,000) is used as the lubricant for the magnetic recording medium.

公开(公告)号：JP2002322270A

公开(公告)日：2002-11-08

申请号：JP2001127200

申请日：2001-04-25

Applicant: SONY CORP

Inventor： KOBAYASHI TAKESHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KURIHARA KENICHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: C07C69/62 ,  C08G65/332 ,  C10M105/54 ,  C10M107/38 ,  C10N30/00 ,  C10N30/06 ,  C10N40/18 ,  G11B5/71

Abstract: PROBLEM TO BE SOLVED: To provide a lubricant which holds excellent lubricity under various conditions for use, maintains the lubrication effect over a long time, can give excellent running properties, abrasion resistance, durability and the like, and is used for recording media. SOLUTION: For example, a C18 H37 -CH(CH2 COOH)COO-Rf-OCOCH(CH2 COOH)-C18 H37 (Rf is a fluoropolyether group having an average mol.wt. of 2,000) is used as a lubricant for magnetic recording media.

公开(公告)号：JP2002167530A

公开(公告)日：2002-06-11

申请号：JP2000363151

申请日：2000-11-29

Applicant: SONY CORP

Inventor： KAMEI TAKAHIRO ,  KISHII NORIYUKI ,  KURIHARA KENICHI ,  KOBAYASHI TAKESHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: B42D15/10 ,  C09D11/00 ,  C12N15/09 ,  G06K17/00 ,  G06K19/10

Abstract: PROBLEM TO BE SOLVED: To produce a DNA ink which is used for the identification of an individual and can produce a thin film having an unforgeable surface pattern for the identification, and a medium for the identification. SOLUTION: An aqueous solution of a DNA molecule is mixed with a cationic surfactant to produce a polyion complex compound of the DNA and the cationic surfactant through the reaction of the phosphate group of the DNA molecule with the acidic group of the cationic surfactant. The polyion complex compound is dissolved in an organic medium to give a DNA ink. The DNA ink is cast on a base plate to form a thin film of the polyion complex compound. The surface pattern on the thin film is so complicated that the use of this DNA ink can realize the preparation of a thin film having an unforgeable surface pattern for the identification of an individual.

公开(公告)号：JP2001143255A

公开(公告)日：2001-05-25

申请号：JP2000256430

申请日：2000-08-25

Applicant: SONY CORP

Inventor： KURIHARA KENICHI ,  KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KOBAYASHI TAKESHI ,  IWAMOTO HIROSHI ,  TSUBOI HISANORI

IPC: G11B5/84

Abstract: PROBLEM TO BE SOLVED: To analyze the distribution state and optimum existence amount of a lubricant in a magnetic recording medium regardless of the material quality of the lubricant. SOLUTION: The adhesive strength generated between a lubricant layer 5 of the magnetic recording medium 1 which is deposited with at least a magnetic metallic film 3 on one main surface of a nonmagnetic base 2 and has the lubricant layer 5 on the outermost layer of the one main surface on the side formed with the magnetic metallic film 3 and a probe is measured and the surface existence amount of the lubricant in the lubricant layer 5 and the distribution stage thereof are analyzed by the standard deviation of the adhesive strength.

公开(公告)号：JPH1139646A

公开(公告)日：1999-02-12

申请号：JP19284497

申请日：1997-07-17

Applicant: SONY CORP

Inventor： KISHII NORIYUKI ,  KAMEI TAKAHIRO ,  KURIHARA KENICHI ,  KOBAYASHI TAKESHI ,  IWAMOTO HIROSHI ,  MATSUZAWA NOBUYUKI

IPC: C09K19/06 ,  C09K19/32 ,  C09K19/34 ,  C10M105/06 ,  C10M105/20 ,  C10M105/70 ,  C10N40/18 ,  C10N50/10 ,  G11B5/64 ,  G11B5/71 ,  G11B5/72 ,  G11B5/725 ,  G11B5/735 ,  G11B5/738

Abstract: PROBLEM TO BE SOLVED: To provide a recording medium excellent in continuous sliding durability, low in tackiness and high in meniscus force by incorporating liquid crystal molecules having a specified tricyclic structure as a lubricant into the outermost layer. SOLUTION: The outermost layer of a magnetic recording medium having magnetic layers on a nonmagnetic supporting body contains a lubricant containing liquid crystal molecules having a tricyclic structure expressed by the general formula of L-W-X-Y or L-W-X-Y -R. In the formulae, W, X, Y , Y are atomic groups having cyclic structures, L, R are cyano groups, nitro groups, aldehyde groups, hydroxyl groups, amino groups, amide groups, ether groups, carboxyl groups, carboxyl groups, oxycarboxyl groups, halogen groups, alkyl groups, allyl groups, hydroxyimino groups, or allyl groups, alkyl groups, oxycarboxyl groups, carboxyl groups, carbonyl groups, ether groups, amide groups and amino groups with substitution of groups above described. The lubricant may be applied on the back coating layer or added in the magnetic layer.