Abstract: A compact strainer having a small pressure loss which is easily cleaned without inserting and detaching screens in and from a strainer casing. Front and rear end portions of a tubular casing are respectively provided with an inlet and an outlet. A barrier divides in two a linear channel between the inlet and the outlet along a flowing direction and is provided on the outlet side so as to face the inlet. A filter portion surrounding the inlet is constituted by the barrier, a pair of screens laterally opposing each other and arranged at a predetermined interval are provided, and the upper and lower portions of an inner surface of an outer wall of the casing, and upper and lower regions of the outer wall are provided with opening portions with lids which make the inside of the filter portion communicate with the outside.

Abstract: A compact strainer having a small pressure loss which is easily cleaned without inserting and detaching screens in and from a strainer casing. Front and rear end portions of a tubular casing are respectively provided with an inlet and an outlet. A barrier divides in two a linear channel between the inlet and the outlet along a flowing direction and is provided on the outlet side so as to face the inlet. A filter portion surrounding the inlet is constituted by the barrier, a pair of screens laterally opposing each other and arranged at a predetermined interval are provided, and the upper and lower portions of an inner surface of an outer wall of the casing, and upper and lower regions of the outer wall are provided with opening portions with lids which make the inside of the filter portion communicate with the outside.

Abstract: An alumina particle composite (1) includes an alumina particle (2) and an organic acid (3) chemically bonded to a surface of the alumina particle (2). Further, the alumina particle (2) has a short axis length of 1 to 10 nm, a long axis length of 20 to 400 nm, and an aspect ratio of 5 to 80, and is represented by Formula I, Al2O3·nH2O??Formula I where n is 0 or more.

Abstract: An alumina particle composite (1) includes an alumina particle (2) and an organic acid (3) chemically bonded to a surface of the alumina particle (2). Further, the alumina particle (2) has a short axis length of 1 to 10 nm, a long axis length of 20 to 400 nm, and an aspect ratio of 5 to 80, and is represented by Formula I, Al2O3.nH2O??Formula I where n is 0 or more.

Abstract: An alumina particle composite (1) includes an alumina particle (2) and an organic acid (3) chemically bonded to a surface of the alumina particle (2). Further, the alumina particle (2) has a short axis length of 1 to 10 nm, a long axis length of 20 to 400 nm, and an aspect ratio of 5 to 80, and is represented by Formula I, Al2O3.nH2O??Formula I where n is 0 or more.

Abstract: A thermoplastic resin composition contains polycarbonate molecules to which inorganic oxide fine particles are bonded through connecting groups of an aliphatic ether type represented by a following general wherein M represents a tri- or tetravalent metal element capable of bonding to surfaces of the inorganic oxide fine particles; m is 0 or 1; n is an integer of 2 to 8 indicating the number of methylene groups in a chain; R1 represents an aliphatic group containing a straight chain formed by connecting 2 to 8 carbon atoms to each other, and both terminals of which are bonded to two oxygen atoms adjacent thereto; at least one of *1-, *2- and *3- is a bonding species capable of bonding to the surfaces of the inorganic oxide fine particles, and at least one of the *1-, *2- and *3- is bonded to the surfaces of the inorganic oxide fine particles; and *4- represents a bond with a polycarbonate molecule.

Abstract: An alumina particle composite (1) includes an alumina particle (2) and an organic acid (3) chemically bonded to a surface of the alumina particle (2). Further, the alumina particle (2) has a short axis length of 1 to 10 nm, a long axis length of 20 to 400 nm, and an aspect ratio of 5 to 80, and is represented by Formula I, Al2O3.nH2O??Formula I where n is 0 or more.

Abstract: A resin composition to be used as a material for a various part of an automotive vehicle. The resin composition comprises a copolymer (A) formed by copolymerization of a first unsaturated monomer (a) and a second mononer (b). The first unsaturated monomer has a functional group which is bondable by hydrogen bond to a hydroxyl group. The second monomer is copolymerizable with the first unsaturated monomer. A metal oxide (B) is dispersed in the copolymer and having hydroxyl groups and hydrophobic groups at surface of the metal oxide.

Abstract: A resin composition of the present invention comprises a polymer having functional groups and a metal oxide surface modified to form functional groups at a surface of the metal oxide and dispersed uniformly in the polymer. The functional groups of the polymer and the functional groups of the metal oxide are ionically bondable to the metal oxide and the polymer, respectively, so that the polymer and the metal oxide are bonded by ionic bonds to each other.

Abstract: A plastic window panel for an automotive vehicle comprises a plastic panel of a transparent noncrystalline organic high polymer. Silica particulate is dispersed in the plastic panel and has a particle size not larger than wavelengths of visible light. The plastic window panel is produced by one of a first method and a second method. The first method comprises (a) providing a first solvent in which the silica particulate having the particle size not larger than wavelengths of visible light is dispersed, and a second solvent in which the transparent noncrystalline organic high polymer is dissolved; (b) mixing the first solvent and the second solvent to obtain a resin composition; and (c) molding the resin composition under heating.

Abstract: A resin composition of the present invention comprises a polymer having functional groups and a metal oxide surface modified to form functional groups at a surface of the metal oxide and dispersed uniformly in the polymer. The functional groups of the polymer and the functional groups of the metal oxide are ionically bondable to the metal oxide and the polymer, respectively, so that the polymer and the metal oxide are bonded by ionic bonds to each other.

Abstract: For producing a modified silica composition, finely particulate silica with silanol groups is used. The finely particulate silica is so modified as to have a modification factor of 0.45 to 8 as expressed by the product (A×B) of the hydrophobic ratio (A) of its silanol groups and the total carbon number (B) of alkyl groups. It makes with a matrix resin a transparent resin composition of high transparency and rigidity which can make a thermoplastic resin laminate having an excellent appearance and suitable for application to a part for the exterior decoration of a vehicle.

Abstract: A resin composition to be used as a material of a part of an automotive vehicle. The resin composition comprises a matrix resin. Linkages of inorganic fine particles are uniformly dispersed in the matrix resin. Each linkage has hydroxyl groups and hydrophobic groups which are introduced by a hydrophobicity-providing treatment. The linkages take at least one of a chain-like form and a net-like form.

Abstract: A resin composition to be used as a material for a various part of an automotive vehicle. The resin composition comprises a copolymer (A) formed by copolymerization of a first unsaturated monomer (a) and a second mononer (b). The first unsaturated monomer has a functional group which is bondable by hydrogen bond to a hydroxyl group. The second monomer is copolymerizable with the first unsaturated monomer. A metal oxide (B) is dispersed in the copolymer and having hydroxyl groups and hydrophobic groups at surface of the metal oxide.

Abstract: An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.

Abstract: An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.

Abstract: The invention relates to a coating liquid for forming a hydrophilic film. This coating liquid comprises a first sol which is a titania sol; and a second sol which is at least one of a silica sol and an alumina sol. This titania sol is prepared by a method comprising the sequential steps of (a) mixing a first solution containing a titanium alkoxide with a diol represented by at least one of the following general formulas (1) and (2), thereby to prepare a second solution containing a titanium complex formed by a reaction of the titanium alkoxide with the diol; and (b) hydrolyzing the titanium complex in the second solution, thereby to prepare the titania sol. The coating liquid is stable or sufficiently long in pot life, and the hydrophilic film has a long time duration in hydrophilicity and a superior abrasion resistance. ##STR1## wherein R.sub.1 is H or C.sub.p H.sub.2p+1 where p is from 1 to 5, R.sub.2 is C.sub.q H.sub.2q+1 where q is from 1 to 5, R.sub.3 is C.sub.r H.sub.2r where r is from 1 to 3, R.sub.

Abstract: A head feeding apparatus for recording information signals in a disk shaped recording medium such as an optical disk or reading the signals recorded therein comprises a guide mechanism and a moving mechanism. The guide mechanism guides the head in a direction of the diameter of the disk shaped recording medium. The moving mechanism moves the head along the guide mechanism. The moving mechanism comprises a driving source, a rack and a transmission mechanism. The rack is moved together with the head. The transmission mechanism meshes with the rack to transmit a driving force from the driving source. The rack is provided with elastic deformation sections for urging the gear section of the rack toward the transmission mechanism.

Abstract: The invention relates to a hydrophilic film formed on a substrate. This film has a hydrophilic outermost layer having a matrix phase containing titania and a disperse phase constituted of at least one compound of silica and alumina. The matrix phase may further contain an amorphous metal oxide. With this, the outermost layer becomes superior in abrasion resistance. The at least one compound of the disperse phase may be a non-spherical colloidal silica. With this, the outermost layer becomes substantially improved in scratch resistance. The outermost layer is formed on the substrate by a method including sequential steps of (a) providing a sol mixture including a first sol containing a precursor of the titania and a second sol containing the at least one compound; (b) coating the substrate with the sol mixture, thereby to form thereon a precursory film; and (c) baking the precursory film into the outermost layer.

Abstract: The invention relates to a hydrophilic article having (a) a substrate; and (b) a hydrophilic film formed on the substrate. This film has a hydrophilic outermost layer containing (1) a titania; (2) an amorphous oxide in an amount of from 5 to 25 wt % based on the total weight of the outermost layer; and (3) silica particles having a particle diameter of from 3 to 20 nm. A combination of the titania and the amorphous oxide constitutes the hydrophilic outermost layer's matrix phase (continuous phase), and the silica particles constitute the disperse phase distributed over the matrix phase. The hydrophilic outermost layer is superior in abrasion resistance and duration of hydrophilicity.