公开(公告)号：WO1988005474A2

公开(公告)日：1988-07-28

申请号：PCT/US1988000224

申请日：1988-01-26

Applicant: DYNAMIC DISK, INC.

Inventor： DYNAMIC DISK, INC. ,  WRAY, Daniel, X.

IPC: C23C22/73

CPC classification number: C23C22/73 ,  G11B5/722 ,  G11B5/725 ,  G11B5/84 ,  H01F41/14

Abstract: A method for the preparation of reactive metal surfaces whereby the finished surfaces are in a reactive, essentially reduced condition and controlled oxidation reactions are employed to chemically bond a film on the metal surface to protect the surface or to provide a selected surface characteristic. During preparation the surface is covered by a working fluid that is inert with respect to the metal being worked and which is a solvent for film forming molecules which are being applied to the surface. The film forming molecules are thus readily chemically bonded to the reactive metal under controlled conditions essentially simultaneously with surface preparation to form a chemically uniform film on the reactive metal surface. The film is thus formed in the absence substances which may also react with the substrate metal to form undesirable reaction by-products which interfere with creation of a uniform, chemically bonded film on the substrate and which can result in pitting of the metal surface. The working fluid comprises a solvent for film forming monomers which is inert with respect to the metal being finished and may include halogenated liquid hydrocarbons and water as the solvent. Among the materials used to form the films of the method of the present invention good results have been achieved with hydroxyl and carboxyl terminated perfluoroalkylpolyethers. In addition inorganic film forming molecules such as phosphates, sulfates or chromates are used where water is the solvent for the working fluid. Articles produced by the method of the invention are claimed.

公开(公告)号：WO1988005591A1

公开(公告)日：1988-07-28

申请号：PCT/US1988000215

申请日：1988-01-26

Applicant: DYNAMIC DISK, INC.

Inventor： DYNAMIC DISK, INC. ,  WRAY, Daniel, X.

IPC: G11B05/72

CPC classification number: G11B5/725

Abstract: Improved recording medium and method for producing the same in which a thin lubricant film is applied directly to the surface of the recording medium without the necessity of intermediate layers or additional decomposition steps. The lubricant coating, which is a single monolayer of between about 30 and about 300 angstroms in thickness, is chemically bonded to the surface of the recording medium and the molecules of the film are oriented substantially normal to the surface of the recording medium. The backbone of the molecule of the film is selected from a number of different polymeric materials to provide a desired characteristic to the film surface, such as lubricity, and the distal end of the molecule is preferably provided with a strong electronegative group so that the surface of the magnetic medium is strongly electronegative which further protects against head crash and abrasion due to contact with the magnetic slider head. The film is applied directly to a reactive magnetizable metal surface of the media. The molecules of the film to be applied to the surface are brought to the surface in solubilized form since in this form the molecules are more soluble in the solution than they are in themselves thus promoting orientation of the molecule when the terminal bonding group of the molecule reacts with the surface of the recording medium.

Abstract translation: 改进的记录介质及其制造方法，其中薄的润滑剂膜直接施加到记录介质的表面，而不需要中间层或附加的分解步骤。 作为厚度为约30至约300埃的单一单层的润滑剂涂层化学键合到记录介质的表面，并且膜的分子基本上垂直于记录介质的表面定向。 薄膜分子的主链选自多种不同的聚合物材料，以提供薄膜表面所需的特性，例如润滑性，分子的末端优选具有强电负性基团，使得表面 的磁介质是强电负性的，这进一步防止由于与磁性滑动头接触而导致头部碰撞和磨损。 该膜直接施加到介质的反应性可磁化金属表面。 要施加到表面的膜的分子以溶解形式被带到表面，因为在这种形式中，分子比它们本身更易于溶解，因此当分子的末端键合基团促进分子的取向时 与记录介质的表面反应。

公开(公告)号：WO1988005473A1

公开(公告)日：1988-07-28

申请号：PCT/US1988000214

申请日：1988-01-26

Applicant: DYNAMIC DISK, INC.

Inventor： DYNAMIC DISK, INC. ,  WRAY, Daniel, X.

IPC: C23C22/02

CPC classification number: C23C22/02 ,  G11B5/72 ,  G11B5/84 ,  H01F41/14

Abstract: The combination of a metal substrate and a thin surface film of a reaction product of the metal substrate and the film forming material. The molecules of the film are oriented essentially normal to the reactive metal substrate surface. The film molecules comprise a monofunctional or a polyfunctional terminal bonding group for chemically bonding with the metal substrate surface. It is preferred that a terminal bonding group be located at a terminus of the molecular backbone to insure that the desired molecular orientation is achieved. Additional sites may be provided for reaction with other molecules or for crosslinking to provide a film on the substrate surface having the desired characteristics. The terminal bonding group is selected from the group consisting of carbonyl, carboxy, carbonate, sulfide, sulfonate, amine, oxime, nitrate, phosphate, thiophosphate, epoxy, vinyl, benzyl, and ring systems capable of donating pi electrons. The backbone of is selected from the group of molecules having the formula [CX3 - (CX2O)m - (C2X4O)n - CX2] [CX3 - (CX2)n] - wherein X comprises fluorine, chlorine, iodine or hydrogen, m and n are integers of between 1 and about 32, and where X is hydrogen the hydrocarbon groups may be ethylenically unsaturated. A method for producing the article is provided.

Abstract translation: 金属基材和金属基材与成膜材料的反应产物的薄表面膜的组合。 膜的分子基本上垂直于反应性金属基底表面定向。 膜分子包括用于与金属基材表面化学键合的单官能或多官能末端键合基团。 优选末端键合基团位于分子骨架的末端以确保实现所需的分子取向。 可以提供附加位点用于与其他分子反应或用于交联以在具有所需特征的基底表面上提供膜。 末端键合基团选自羰基，羧基，碳酸根，硫酸根，磺酸根，胺，肟，硝酸根，磷酸根，硫代磷酸根，环氧基，乙烯基，苄基和能提供pi电子的环系。 主链选自具有式[CX3 - （CX2O）m - （C2X4O）n-CX2] [CX3 - （CX2）n] - 的分子群，其中X包括氟，氯，碘或氢，m和 n是1至约32的整数，并且其中X是氢，烃基可以是烯属不饱和的。 提供了制造该制品的方法。