Abstract: A fluorine resin type weather-resistant film of multi-layer structure comprising a front surface layer made of a composition (A) comprising, as main components, from 50 to 95 parts by weight of a vinylidene fluoride resin and from 5 to 50 parts by weight of a methacrylate resin and a rear surface layer made of a composition (B) comprising, as main components, from 50 to 95 parts by weight of a methacrylate resin, from 5 to 50 parts by weight of a vinylidene fluoride resin and from 0.1 to 15 parts by weight of an ultraviolet absorber, wherein the overall thickness of the film of multi-layer structure is from 10 to 150 .mu.m, and the thickness of the front surface layer of the film is from 2 to 50 .mu.m.

Abstract: A high opacity flexible composite material is receptive to printing on opposing outer surfaces without a printed image on one surface being visible from the other and without a printed image on the other surface being visible on the one surface, the composite having outer ink printable layers with at least one intermediate polyester film layer adhesively bonded to one of the layers, the intermediate layer consisting of polyethylene terephthalate, and a metallized coating of aluminum on the intermediate layer having a total optical density in the range of 1.70 to 9.99, wherein one of the outer layers is bonded to the intermediate layer, and the other outer layer is bonded to the metallized coating.

Abstract: A heat resistant adhesive material which comprises an aromatic polyimide supporting film wherein the main component of the film is a repeating unit of the general formula: ##STR1## Ar.sub.1 is an aromatic tetracarboxylic acid residue, Ar.sub.2 an aromatic diamine residue, and n is an integer 1 or greater; at lease one side of which is coated with an adhesive layer wherein the main component of the adhesive is an acetylene terminated polyimide of the formula: ##STR2## wherein R.sub.o represents tetravalent organic groups, R.sub.1 and R.sub.2 divalent organic groups, and m is an integer 0 or greater; or ##STR3## wherein R.sub.o represents tetravalent organic groups, R.sub.1 and R.sub.2 divalent organic groups, and m is an integer 0 or greater.

Abstract: A rubber composition for coating steel cords, comprising a raw material rubber and, compounded therein, a methylolmelamine derivative and a product of a reaction of a cobalt salt of an organic acid with a metaboric acid ester, and a rubber product reinforced with rubber-coated steel cords comprising steel cords coated with the rubber composition.

Abstract: A surface treated sliding or rolling contact element, including a reaction product film of a 0.05 .mu.m to 0.5 .mu.m thickness which has been produced by a chemical treatment of the surface of the sliding or rolling contact element wherein the reaction product film is an inorganic and/or organometallic compound produced by a chemical reaction between a chemically active organic compound and the metal surface of the sliding or rolling contact element.

Abstract: A laminate, suitable for packaging coffee, is disclosed. It consists of a) a base film of biaxially oriented polyester film or biaxially oriented nylon film, b) a gas barrier layer of aluminum and c) an oriented linear low density polyethylene film. The polyethylene is selected from the group consisting of at least one ethylene/C.sub.4 -C.sub.10 .alpha.-olefin copolymer having a density of from 0.905 to 0.940 g/cm.sup.3 and blends of such copolymer with a second polymer selected from at lest one of a homopolymer of ethylene and a copolymer of ethylene and vinyl acetate. The second polymer has a density of from 0.910 to 0.940 g/cm.sup.3, and the blend has up to 70 wt. % of the second polymer.

Abstract: Metal cookware coated with a multilayer system including a primer with more Al.sub.2 O.sub.3 and a blend of PTFE and PFA or FEP, a midcoat with less Al.sub.2 O.sub.3, and a topcoat with PTFE, and processes for preparing such coating systems.

Abstract: Disclosed are electrically conductive and semiconductive devices utilizing polymers having resistance to water treeing and good dielectric properties. The polymer comprises ethylene polymerized with at least one C.sub.3 to C.sub.20 alpha-olefin and optionally at least one C.sub.3 to C.sub.20 polyene. The polymer utilized has a density in the range of about 0.86 g/cm.sup.3 to about 0.96 g/cm.sup.3, a melt index in the range of about 0.2 dg/min to about 100 dg/min, a molecular weight distribution in the range of about 1.5 to about 30, and a composition distribution breadth index greater than about 45 percent. For the polymer utilized, the tree rating is generally less than about 40, the power factor is in the range of about 0.0002 to about 0.0005, and the dielectric constant is in the range of about 1.8 to about 2.4.

Abstract: Polymeric fluorocarbon layer is prepared by plasma enhanced chemical vapor deposition in a chamber, the walls of which are coated with a polymeric fluorocarbon film by introducing a gaseous polymerizable fluorocarbon into the chamber and applying radio-frequency at a power level of about 100 to about 1000 watts, employing a pressure of about 10 to 180 mTorr and a self-bias voltage of about -50 to about -700 volts. The polymeric fluorocarbon layer is about 0.05 to about 5 .mu.m thick, has a maximum dielectric constant of about 2.5, has a C/F ratio of about 1:1 to about 1:3, is thermally stable at temperatures of at least about 350.degree. C., and is substantially free from metallic contamination and oxygen.

Abstract: A developing roller of monocomponent developing system, in which a low hygroscopic material is used for a dielectric layer, thereby suppressing a change of electric properties of the layer caused by water absorption, that is, a dielectric layer using a low hygroscopic material, namely, a low hygroscopic elastomer or a low hygroscopic polymer is used at an outer surface of a conductive supporting body where, as a concrete example of the elstomer or the polymer, polyethylene, polypropylene, ethylenic copolymer, rigid polyvinyl chloride, fluoro resin, acetal resin or mixtures thereof, or the elastomer or the polymer in which manganese-aluminum magnet, strontium ferrite, barrium ferrite of mixtures thereof is dispersed.

Abstract: A substrate assembly and method for its preparation, said substrate assem comprising at least two substrates adhesively bonded with a cured thermosetting polymer being able to withstand a temperature of 200.degree.-400.degree. C. which polymer is derived from a diphthalonitrile monomer and/or prepolymer with an aromatic moiety in the bridging group which monomer and/or prepolymer is solid at room temperature but which is rendered liquid by heating it to above its melting temperature. Said monomer in liquid state, and its prepolymer in liquid state, have tack with respect to said substrate.

Abstract: Improved non-stick coating systems can be applied to untreated smooth substrate with a primer of polytetrafluoroethylene and a perfluorinated copolymer of tetrafluoroethylene and perfluoro vinyl ether to give a concentration gradient.

Abstract: Roofing granules having surfaces treated with a polysiloxane that has a long-chain hydrocarbon group bonded to a silicon atom on the polysiloxane backbone wherein the long-chain hydrocarbon group preferably is a straight or branched aliphatic group having 5 to 30 carbon atoms and the roofing granules treated with such polysiloxanes demonstrate good dust control and water repellency, and also resist staining from oils in asphalt-based substrates.

Abstract: A reflective article includes a glass substrate and a reflective metal coating deposited on the glass substrate including a reflective layer of silver and having a surface stratum which has a population of tin atoms which is augmented as compared with the population of tin atoms (if any) in an underlying subsurface stratum by at least one tin atom per hundred metal atoms thereby conferring on the reflective metal coating an enhanced resistance to corrosion. The reflective layer of silver is treated with an acidified aqueous solution of a stannous salt, which solution is free from opalescence, thereby to augment tin atom population in a surface stratum of the reflective metal coating.

Abstract: A multi-layer film of improved adhesive strength and other properties is made by combining a layer of polyimide and one or more layers of fluoropolymer selected from the group consisting of PTFE, thermally compatible TFE copolymers, blends thereof, PVF.sub.2, thermally compatible VF.sub.2 copolymers, blends thereof, PCTFE, thermally compatible CTFE copolymers, and blends thereof. It has been found that the peel adhesion between the polyimide layer and any fluoropolymer layer is greatly improved over known products. Laminated composites of improved adhesion and cohesion are made using such a multi-layer film and at least one fluoropolymer film. The fluoropolymer film is thermally weldable to the polyimide film.

Abstract: 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 wherein 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 and a method of manufacturing a substrate material having a fluorine coating, which is simple and does not involve any electrolytic etching step which 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: A composite material comprising a substrate which is not or very slightly excitable by microwaves and a coating on at least a portion of said substrate based on polymeric composition containing at least 50% by weight of a polymer excitable by microwaves, wherein the melting point of the substrate is lower than the film-formation temperature of the polymeric composition and the process of making such composite.

Abstract: A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the polycondensation of tannic acid, phenols and aldehydes; a bonded magnet is also made from a powder of any such material composed of particles coated with any such resin.

Abstract: A coextruded multi-layer structure may be formed by coextruding a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon (a polyketone polymer) with an other thermoplastic polymer, without the use of an adhesive or tie layer. The multi-layer structures exhibit strong adhesion but can be easily separated (for recycling, etc.) once the integrity of either layer is impaired. The other thermoplastic polymer is a cracked polybutylene, nylon-6, nylon-12, a copolyetherester polymer, or polyvinyl chloride.

Abstract: A fire protective glass panel for use in a fire protective window, door, and partition wall, which comprises at least one sheet of fireproof glass plate and a fluorocarbone resin film of a chain molecular structure type bonded to a side surface of the glass plate and which has non-shattering property as well as fire protection property wherein the fireproof glass plate is a heat-resistant and light transparent crystallized glass plate or, alternatively, the fireproof glass plate is a wire glass plate and the fluorocarbone resin film has a thickness of 0.02-1 mm and is made of one of FEP, PFA, PCTFE, ETFE, and PVDF.