Abstract: A method and apparatus for bonding a non-conductive member to a conductive member by applying adhesive between mating surfaces of the non-conducting and conducting member and placing an electrode adjacent the non-conductive member overlying the mating surface. An RF generator applies an electric field between the non-conducting and conducting members to cure the adhesive by dielectric heating.

Abstract: The present invention provides for a method of dielectrically heating an adhesive between first and second members by first placing an adhesive bead between mating surfaces of the first and second member. A first electrode is placed adjacent to the first member and a high frequency electric field is applied between the first electrode and a second electrode sufficient to dielectrically heat the adhesive.

Abstract: A hinge and a weather seal are provided for connecting together two adjacent panes in a rear window of an automobile having a fold-down convertible top. The hinge comprises a bonded flexible material, overlapping each adjacent peripheral edge portion of the two panes, on each interior of the rear window surface. The flexible material is preferably bonded to a ceramic frit trim coating located on each adjacent edge portion of the panes so as to screen the flexible material from degradative ultraviolet radiation. The bonded flexible material may comprise a silicone-coated glass fiber cloth having a silicone adhesive thereon for bonding the cloth to the panes. Alternatively, the bonded flexible material may comprise a vinyl-backed cotton fabric dielectrically bonded to the panes. A weather seal, flush with the two panes, is included within a gap located between opposing end portions of the panes.

Abstract: Dieneophile functional modified aminoepoxy resins are disclosed, which resins are the reaction product of (i) diepoxide reactant, (ii) amine functional dieneophile chain extending reactant, (iii) optionally, end-capping reactant such as monohydroxy functional blocked dieneophile, (iv) hydroxy functional secondary amine modifying agent, and (v) certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer modifying agent.

Abstract: A crosslinkable composition of matter is provided, which comprises first and second chain extended diepoxide resins, one or both of which are modified by reaction with hydroxy functional secondary amine and one or both of which are modified by reaction with certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer resin. The first resin, diene functional aminoepoxy resin, and the second resin, blocked dieneophile functional aminoepoxy resin, are co-reactive at elevated cure temperature. The diene functional aminoepoxy resin comprises the reaction product of diepoxide with amine functional diene chain extending reactant and, optionally, monofunctional end-capping reactant such as monohydroxy functional diene, and certain modifying agents.

Abstract: Dieneophile functional modified aminoepoxy resins are disclosed, which resins are the reaction product of (i) diepoxide reactant, (ii) amine functional dieneophile chain extending reactant, (iii) optionally, end-capping reactant such as monohydroxy functional blocked dieneophile, (iv) hydroxy functional secondary amine modifying agent, and (v) certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer modifying agent.

Abstract: Diene functional modified aminoepoxy resins are disclosed, which resins are the reaction product of (i) diepoxide reactant, (ii) amine functional conjugated diene chain extending reactant, (iii) optionally, end-capping reactant such as monohydroxy functional diene, (iv) hydroxy functional secondary amine modifying agent, and (v) certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer modifying agent.

Abstract: A crosslinkable composition of matter is provided, which comprises first and second chain extended diepoxide resins, one or both of which are modified by reaction with hydroxy functional secondary amine and one or both of which are modified by reaction with certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer resin. The first resin, diene functional aminoepoxy resin, and the second resin, blocked dieneophile functional aminoepoxy resin, are co-reactive at elevated cure temperature. The diene functional aminoepoxy resin comprises the reaction product of diepoxide with amine functional diene chain extending reactant and, optionally, monofunctional end-capping reactant such as monohydroxy functional diene, and certain modifying agents.

Abstract: The method disclosed in this specification is one of reducing the green density of an article cast in a slip casting operation. The article is cast from a casting slip containing silicon metal particles, yttrium containing particles, and a small amount of a fluoride salt which is effective to suppress flocculation of the silicon metal particles by y.sup.+3 ions derived from the yttrium containing particles. The method is characterized by the following step. A small amount of compound which produces a cation which will partly flocculate the particles of silicon metal is added to the casting slip. The small amount of this compound is added so that when the casting slip is slip cast into a casting mold, the partly flocculated particles of silicon will interrupt an otherwise orderly packing of the particles of silicon and particles of yttrium. In this manner, the green density of the slip cast article is reduced and the article may be more easily nitrided.

Abstract: High solids, solvent-based resin composition comprises novel chain-extendable, crosslinkable urethane modified polyhydroxy oligomers, crosslinking agent and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The novel oligomers can be the reaction product of a polyol with a half-blocked diisocyanate, wherein said polyol comprises three or more hydroxy, and the half-blocked diisocyanate comprises the reaction product of an organic diisocyanate with approximately one molar equivalent of a monofunctional blocking agent.

Abstract: High solids, solvent-based resin composition comprises novel chain-extendable, crosslinkable urethane modified polyhydroxy oligomers, crosslinking agent and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The novel oligomers can be the reaction product of a polyol with a half-blocked diisocyanate, wherein said polyol comprises three or more hydroxy, and the half-blocked diisocyanate comprises the reaction product of an organic diisocyanate with approximately one molar equivalent of a monofunctional blocking agent.

Abstract: The method concerns forming a relatively stable slip of silicon metal particles and yttrium containing particles. In one embodiment, a casting slip of silicon metal particles is formed in water. Particles of a yttrium containing sintering aid are added to the casting slip. The yttrium containing sintering aid is a compound which has at least some solubility in water to form Y.sup.+3 ions which have a high potential for totally flocculating the silicon metal particles into a semiporous solid. A small amount of a fluoride salt is added to the casting slip which contains the yttrium containing sintering aid. The fluoride salt is one which will produce fluoride anions when dissolved in water. The small amount of the fluoride anions produced are effective to suppress the flocculation of the silicon metal particles by the Y.sup.

Abstract: Resin composition suitable for high solids, solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight about 100 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate diurea oligomer of molecular weight about 200 to 1500, comprising the reaction product of a half-blocked diisocyanate with diamine, crosslinking agent reactive with the hydroxy functionality of the polyol and substantially unreactive with the de-blocked isocyanate functionality of said diblocked diisocyanate diurea oligomer, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The half-blocked diisocyanate is preferably the reaction product of an organic diisocyanate with monofunctional blocking agent.

Abstract: Resin composition suitable for high-solids solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight from about 200 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate diurethane oligomer of molecular weight between about 300 to 1500, crosslinking agent reactive with the hydroxy functionality of the polyol and substantially unreactive with de-blocked isocyanate functionality of the diblocked diisocyanate diurethane oligomer, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The diblocked diisocyanate diurethane oligomer is preferably the reaction product of a diol with a half-blocked diisocyanate, wherein the half-blocked diisocyanate is preferably the reaction product of an organic diisocyanate with monofunctional blocking agent.

Abstract: Resin composition suitable for high-solids solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight from about 200 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate diurethane oligomer of molecular weight between about 300 to 1500, crosslinking agent reactive with the hydroxy functionality of the polyol and substantially unreactive with de-blocked isocyanate functionality of the biblocked diisocyanate diurethane oligomer, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The diblocked diisocyanate diurethane oligomer is preferably the reaction product of a diol with a half-blocked diisocyanate, wherein the half-blocked diisocyanate is preferably the reaction product of an organic diisocyanate with monofunctional blocking agent.

Abstract: Resin composition suitable for high solids, solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight about 100 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate diurea oligomer of molecular weight about 200 to 1500, comprising the reaction product of a half-blocked diisocyanate with diamine, crosslinking agent reactive with the hydroxy functionality of the polyol and substantially unreactive with the de-blocked isocyanate functionality of said diblocked diisocyanate diurea oligomer, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The half-blocked diisocyanate is preferably the reaction product of an organic diisocyante with monofunctional blocking agent.

Abstract: Resin composition suitable for high-solids solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight from about 200 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate diurethane oligomer of molecular weight between about 300 to 1500, crosslinking agent reactive with the hydroxy functionality of the polyol and substantially unreactive with de-blocked isocyanate functionality of the diblocked diisocyanate diurethane oligomer, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humitidy and solvents and provides corrosion protection for the substrate. The diblocked diisocyanate diurethane oligomer is preferably the reaction product of a diol with a half-blocked diisocyanate, wherein the half-blocked diisocyanate is preferably the reaction product of an organic diisocyanate with monofunctional blocking agent.

Abstract: Resin composition suitable for high-solids, solvent-based coating composition comprises chain-extendable, crosslinkable polyol of molecular weight of about 100 to 1000, having at least three hydroxyl groups, chain-extendable diblocked diisocyanate of molecular weight about 200 to about 2000, crosslinking agent reactive with the hydroxyfunctionality of the polyol and substantially unreactive with de-blocked isocyanate functionality of the diblocked diisocyanate, and, preferably, catalyst(s). The composition cures at elevated temperature to provide a coating on a substrate, such as steel, which coating is highly resistant to corrosion, humidity and solvents and provides corrosion protection for the substrate. The diblocked diisocyanate is the reaction product of an organic diisocyanate with monofunctional blocking agent.

Abstract: Crosslinking compositions comprising (a) reaction product, optionally at least partially neutralized of certain di- or poly epoxy and hydroxy amines and (b) amino resin crosslinkers cure into alkaline resistant coatings that protect against corrosion even in absence of inhibiting pigments such as chromates. The crosslinking compositions may be formulated into a variety of primers including solvent and water base primers that cure within conventional schedules.

Abstract: Primers that are aqueous emulsions comprising (a) at least partially neutralized reaction product of di- or poly epoxy compounds and hydroxy amines made in water miscible solvents and (b) amino resin crosslinkers yield, upon curing, alkaline resistant coatings that provide corrosion protection even in absence of inhibiting pigments as chromates.