Abstract: A chemically adsorbed film having a surface layer containing fluorine groups and a stem layer chemically bonded by siloxane bonds to a substrate is formed on the surface of a frictional portion of a machine part such as a gear or a bearing or on the surface of a game ball. An excellently self-lubricating low frictional resistance machine part or game ball thus can be obtained. A frictional portion of a gear or the like, made of SiO.sub.2 or like ceramic material, is dipped and held in a solution containing a surface active material, e.g., CF.sub.3 (CF.sub.2).sub.7 (CH.sub.2).sub.2 SiCl.sub.3 dissolved in a non-aqueous solvent. A hydrochloric acid removal reaction is brought about between SiCl groups of the material, which contains a fluorocarbon and a chlorosilane group, and hydroxyl groups numerously present on the SiO.sub.2 surface, thus forming bonds ofCF.sub.3 (CF.sub.2).sub.7 (CH.sub.2).sub.2 Si (O--).sub.3over the entire frictional portion surface.

Abstract: The invention relates to a hydrophilic thin film and a method of manufacturing the same in which the hydrophilic thin film is formed by incorporating or fixing molecules comprising hydrophilic groups to a chemically adsorbed film on a substrate surface.

Abstract: A lubricating film of the invention is comprised of a chemically adsorbed monomolecular film, in which long-chain molecules are chemically bonded to at least one surface of a substrate via siloxane bonding, and layers of chemically adsorbed monomolecular film are formed on the surface of the previously formed chemically adsorbed monomolecular film after changing the groups at the end of chemical admolecules to monofunctional groups. The lubricating film has excellent endurance against sliding, with lubrication and anti-abrasion properties, and such properties of the film can be maintained for a long period. A chemically adsorbed monomolecular film can be formed on a substrate surface via covalent bonding (SiO--) by the dehydrochlorination reaction between active hydrogens on the substrate surface and the silane-based chemical adsorbent comprising dimethylsilyl groups.

Abstract: A chemically adsorbed film having a surface layer containing fluorine groups and a stem layer chemically bonded by siloxane bonds to a substrate is formed on the surface of a frictional portion of a machine part such as a gear or a bearing or on the surface of a game ball. An excellently self-lubricating low frictional resistance machine part or game ball thus can be obtained. A frictional portion of a gear or the like, made of SiO.sub.2 or like ceramic material, is dipped and held in a solution containing a surface active material, e.g., CF.sub.3 (CF.sub.2).sub.7 (CH.sub.2).sub.2 SiCl.sub.3 dissolved in a non-aqueous solvent. A hydrochloric acid removal reaction is brought about between SiCl groups of the material, which contains a fluorocarbon and a chlorosilane group, and hydroxyl groups numerously present on the SiO2 surface, thus forming bonds ofCF.sub.3 (CF.sub.2).sub.7 (CH.sub.2).sub.2 Si(O--).sub.3over the entire frictional portion surface.

Abstract: An information recording layer on a substrate provides a method of recording information by selectively opening the rings of dicyclopentadiene skeletons, thus recording information by forming cyclopentadiene skeletons. The information recorded by the method can be erased by the cycloaddition of cyclopentadiene skeletons. Information can also be recorded or erased by incorporating or eliminating a metal ion from a selectively opened section of a ring of a dicyclopentadiene skeleton after forming an organic thin film comprising the dicyclopentadiene skeleton. Alternatively, after the formation of an organic thin film comprising a cyclopentadiene skeleton, a heterocycle or a benzene ring, a metal ion is incorporated or eliminated from a section between at least two rings of the cyclopentadiene skeleton, the heterocycle or the benzene ring. Thereafter, a metallocene skeleton or a skeleton analogous to the metallocene skeleton is formed or eliminated, thus recording or erasing information.

Abstract: According to the invention, a durable hydrophilic adsorbed film is formed on the surface of a substrate including metals, glass, plastics and the like in which the substrate has a surface layer containing hydroxyl groups or imino groups. The film is formed by covalently bonding chemical absorbents of silane groups containing a pluralilty of chloro groups to the substrate surfaces. The substrate 1 such as glass or nylon is dipped and held in a non-aqueous solution containing fluorocarbon groups and hydrocarbon groups containing chemical absorbents of silane groups containing a plurality of chloro goups including SiCl.sub.4, Cl.sub.3 SiOSiCl.sub.3, HSiCl.sub.3 or Cl.sub.3 SiOSiCl.sub.2 OSiCl.sub.3. After taking out the substrate 1 from the solution, drying it in a low moisture or substantially moistureless atmosphere to remove said non-aqueous solvents, the substrate is exposed to the air. A hydrophilic adsorbed ultra-thin film is thus formed by a dehydrochlorination reaction.

Abstract: An antistatic film comprising a chemically adsorbed film of straight chain molecules each containing a conductive group and provided on a chargeable substrate via covalent bonds each containing a Si group, said chemically adsorbed film having a conductivity of 10.sup.-10 S/cm or above. With the antistatic chemically adsorbed film according to the invention, conductive functional groups are secured via chemically adsorbed molecules and by siloxane bonds to the surface of a substrate material such as ceramics, glass, synthetic resins or synthetic fibers, a film, a plate, an display screen surface, a light-emitting tube. Thus, the film provides an antistatic effect and does not separate. In addition, this chemically adsorbed film has a thickness at the nanometer level and is thus excellently transparent, as well as capable of preventing contamination of the substrate surface due to charging thereof. The film is also excellently durable.

Abstract: A process for producing an organic device includes forming a first electrode and a second electrode on a substrate having an insulating film formed on a surface thereof, etching out the insulating film with the first electrode and the second electrode being used as masks, forming a monomolecular or built-up monomolecular film containing electrolytically polymerizable unsaturated groups directly or indirectly on the surface of the substrate by a chemical absorption method or the Langmuir-Blodgett method.

Abstract: According to the invention, a fluorine-based or siloxane-based chemical adsorbed film containing a fluorocarbon compound can be formed on a given substrate surface in a laminated state and through chemical bonds (i.e., covalent bonds) with the substrate, it is possible to obtain a laminated film which has satisfactory adhesion to the substrate, is substantially pin-hole free and is very thin. Further, since the outermost layer may be substituted by fluorocarbon groups or hydroxyl groups, it is possible to obtain a film which has excellent water- and oil-repelling properties or hydrophilic and oil-repelling properties and can replace fluorine-based coating films, thus improving the performance of products requiring a coating having a water- and oil-repelling resistant property, weather-resistant property, wear-resistant property and so forth which are desirable in electric products, vehicles, industrial devices and so forth.

Abstract: According to the invention, a durable hydrophilic absorbed film is formed on the surface of a substrate including metals, glass, plastics and the like in which the substrate has a surface layer containing hydroxyl groups or imino groups. The film is formed by covalently bonding chemical absorbents of silane groups containing a pluralilty of chloro groups to the substrate surfaces. The substrate 1 such as glass or nylon is dipped and held in a non-aqueous solution containing fluorocarbon groups and hydrocarbon groups containing chemical absorbents of silane groups containing a plurality of chloro groups including SiCl.sub.4, Cl.sub.3 SiOSiCl.sub.3, HSiCl.sub.3 or Cl.sub.3 SiOSiCl.sub.2 OSiCl.sub.3. After taking out the substrate 1 from the solution, drying it in a low moisture or substantially moistureless atmosphere to remove said non-aqueous solvents, the substrate is exposed to the air. A hydrophilic adsorbed ultra-thin film is thus formed by a dehydrochlorination reaction.

Abstract: A chemically adsorbed film containing hydrophilic groups is formed on a substrate such that it is chemically bonded by Si covalent bonds to the substrate. The adsorbed film has an improved hydrophilic property. In addition,the film provides an excellently durable and transparent fog-proof substrate. According to the method of the invention, a substrate containing hydrophilic groups is contacted with a non-aqueous solution containing a surface active material having straight chain molecules each having at one end a chlorosilyl group and at the other end at least one functional group selected from the group consisting of a bromo group, iodo group, cyano group, thiocyano group, chlorosilyl group etc. to cause a dehydrochlorination reaction between hydrophilic groups on the substrate surface and chlorosilyl groups of the surface active material, thereby forming a chemically adsorbed film on the substrate surface.

Abstract: An information recording layer on a substrate provides a method of recording information by selectively opening the rings of dicyclopentadiene skeletons, thus recording information by forming cyclopentadiene skeletons. The information recorded by the method can be erased by the cycloaddition of cyclopentadiene skeletons. Information can also be recorded or erased by incorporating or eliminating a metal ion from a selectively opened section of a ring of a dicyclopentadiene skeleton after forming an organic thin film comprising the dicyclopentadiene skeleton. Alternatively, after the formation of an organic thin film comprising a cyclopentadiene skeleton, a heterocycle or a benzene ring, a metal ion is incorporated or eliminated from a section between at least two rings of the cyclopentadiene skeleton, the heterocycle or the benzene ring. Thereafter, a metallocene skeleton or a skeleton analogous to the metallocene skeleton is formed or eliminated, thus recording or erasing information.

Abstract: The invention seeks to provide a substrate such as metal, ceramic, plastic, and glass material having a fluorine-based coating film having strong adhesion to a surface of the substrate. The substrate material comprises a monomolecular or polymer adsorption film formed on a base substrate surface and having siloxane bonds and a fluorine-based coating film provided on the adsorption film. The invention also seeks to provide a method of manufacturing a substrate material having a fluorine coating, which is simple and does not involve any electrolytic etching step. The method comprises a step of forming a monomolecular or polymer adsorbed film having --Si-- bonds from dehydrochlorination or dealchoholation the bonded on the substrate surface and causing a silane-based surface active material, capable of reaction with an active hydrogen, to be brought in contact with the substrate surface, and laminating a fluorine-based polymer bonded by a cross-linking reaction process on the adsorbed film.

Abstract: At least one monomolecule film is formed on a transparent substrate surface directly or via a protective film. The monomolecule film is formed with chemical coupling of chlorosilane surface active compound, for example, of the formula:F(CF.sub.2).sub.m (CH.sub.2).sub.n SiR.sub.q X.sub.3-qwhere m is an integer of from 1 to 15, n is an integer of from 0 to 15 provided that the total of m and n is an integer of from 10 to 30 and R is an alkyl or an alkoxyl group, orF(CF.sub.2).sub.m' (CH.sub.2).sub.n' A(CH.sub.2).sub.p SiR.sub.q X.sub.3-qwhere m' represents an integer ranging from 1 to 8, n' represents an integer ranging from 0 to 2, p represents an integer ranging from 5 to 25, q represents an integer ranging from 0 to 2, X represents a halogen atom or an alkoxyl group, R represents an alkyl or an alkoxyl group, and A represents --O--, a --COO-- or --Si(CH.sub.3).sub.2 --. The transparent substrate such as glass is made hydrophobic and free of contamination.

Abstract: A medical member having active hydrogen groups such as hydroxyl, amino or imino groups at its surface, is dipped, either directly or after formation of an inner layer on its surface, into a solution. The solution is prepared by dissolving a surface active material, e.g., CF.sub.3 (CF.sub.2).sub.7 (CH.sub.2).sub.2 SiCl.sub.3 in a non-aqueous solvent. A dehydrochlorination reaction is brought about between active hydrogen groups at the surface of the member and SiCl groups of the surface active material, thus producing bonds ofCF.sub.3 (CF.sub.2).sub.7 (CH.sub.2).sub.2 Si(O--).sub.3over the entire surface. A fluorine-containing monomolecular film is formed, which is chemically (or covalently) bonded to the member surface and has a thickness at the nanometer level. Since the chemically adsorbed film is covalently bonded to the member or inner layer, it is chemically stable and difficult to separate.

Abstract: According to the invention, the surface of a substrate possessing an active hydrogen group is contacted with a chemical adsorbent containing a radical generation precursor group or metal ion capturing group within a molecule--also possessing a reactive functional group such as halosilyl or alkoxy silyl at its end--to form a chemical adsorption film by removing the unreacted chemical adsorbent, radicals are then generated and magnetism is expressed on the chemical adsorption film.

Abstract: The invention concerns an ultra thin polymer film electret comprising a polymer and a substrate having a surface electric charge, wherein a side chain of the polymer and the substrate are physically or chemically bonded. A method of manufacturing an ultra thin polymer film electret comprising: adsorbing a monomolecular film comprising a unsaturated group or a laminated film comprising the monomolecular film on to a substrate surface, irradiating the monomolecular film or the laminated film with an energy beam to polymerize the unsaturated groups and applying a high voltage to the film is also disclosed. Further, a method of manufacturing an ultra thin polymer film electret comprising: physically bonding a side chain of the polymer to a substrate surface to form a thin film and applying a high voltage to the thin film is also disclosed.

Abstract: An alignment film for liquid crystal formed by monomolecular film comprising silane-type compounds with a linear hydrocarbon chain and method for production of said film, as well as liquid crystal display units utilizing said film and method for production of said display unit are disclosed.

Abstract: Disclosed is an ornament with a thin film formed on the ornament surface. The thin film includes a fluorocarbon-based adsorbed monomolecular film, and the thin film is covalently bonded to the ornament. By contacting the ornament with the non-aqueous solution containing a chlorosilane group at one end and a fluorocarbon chain at the other end, a reaction occurs between hydroxyl groups at the ornament surface and the chlorosilyl groups of the material having a plurality of chlorosilyl grounds. A monomolecular film which is covalently bonded to the ornament surface is thereby obtained. A thin, fluorine-containing, monomolecular film thus can be formed on the ornament such that it is, chemically bonded to the ornament. The film is anti-contaminating, water-and oil-repelling, durable and does not spoil the intrinsic luster of the ornament.

Abstract: According to the invention, a chemically adsorbed film is formed on an apparel material which has a surface layer containing fluorocarbon groups and a stem which is chemically bonded by --Si-- bonds to the material. A high performance apparel material thus can be provided which retains intrinsic properties of material such as ventilation and aesthetic appearance and is excellently durable and highly water- and oil-repelling and anti-contaminating or excellently durable and highly hydrophilic. The chemically adsorbed film has a very thin surface layer containing fluorocarbon groups, and is thus excellently water- and oil-repelling and anti-contaminating. In addition, since its stem is chemically bonded via --Si-- bonds to the material, it does not separate and is excellently durable. Further, it is very thin and does not adversely effect intrinsic properties of material such as ventilation, color and aesthetic appearance.