Abstract: A sheet molding material comprising (1) an interlayer containing a photopolymerizable resin and a photocuring agent for the photopolymerizable resin, and (2) a surface layer of a thermosetting resin containing a heat curing agent for the thermosetting resin on both surfaces of the interlayer (1); and a process for the production of the sheet molding material.

Abstract: The adhesion of poly(arylene sulfide) coatings to metal substrates is improved by incorporating an effective amount of finely divided manganese dioxide into a poly(arylene sulfide) primer coat to prime the metal substrate. The primer coat can subsequently be coated with a poly(arylene sulfide) coating or with any other suitable finish coating which will adhere to the primer coat.

Abstract: Parts subject to wear, which come into contact with metal melts, are formed with a hydraulically setting high-alumina refractory concrete having a compression strength when cold, measured on dried crude product, of at least 400 kp/cm.sup.2. The compression strength is at least 700 kp/cm.sup.2 after firing at 1400.degree. C. The refractory concrete has a dimensional stability at 1400.degree. C. of at least plus or minus 0.2%. The refractory concrete contains corundum and active alumina as aggregates, an alumina concrete containing less than 22% lime and, as required, a thinning agent. Up to 5% of the aggregates can be replaced by a spinel-forming substance preferably MgO or MgO-yielding compounds; or up to 5% of the aggregates can be replaced by carbon black, pitch or graphite; or up to 7% of the aggregates can be replaced by chromium oxide. Aggregates under 0.5 mm can be present in the refractory concrete as round grains.

Abstract: Steel pipe is provided with protective coating by first applying a corrosion protective coating such as fused powdered epoxy resin or heat activated adhesive or butyl-based pressure-sensitive adhesive adhered to the pipe, then extruding or coextruding an outer polyolefin layer directly onto the corrosion protective coating. The coextrusion step may include an outer layer of high density polyethylene and an inner adherent layer of low density polyethylene, or an outer layer of polyethylene or polypropylene and an inner layer of a copolymer of ethylene or propylene and acrylic acid.

Abstract: There is disclosed a mercury lamp which has been found to markedly increase plant growth. The electrodes in a conventional mercury lamp are coated with an "emission material" for extending lamp life and to facilitate starting. In accordance with the invention, the mineral scheelite is added to the emission material, and some additional changes are made in the other constituents.

Abstract: A shaped non-opaque coated polycarbonate article having improved abrasion and chemical solvent resistance comprising a polycarbonate substrate having disposed on the surface thereon a non-opaque primer layer comprised of a thermoplastic acrylic polymer containing functional groups and disposed on said primer layer a non-opaque top coat comprised of a colloidal silica filled thermoset organopolysiloxane.

Abstract: The present invention relates to a novel sheet adapted to be adhered to and form the outer layer of a wood article, said sheet being made from a furnish comprising, for each 100 parts by weight, from about 10 to 25 parts synthetic pulp, 10 to 25 parts by weight mineral fiber, 0.1 to 2 parts size, 0.1 to 2 parts wet strength agent, and 79.8 to 46 parts wood fiber and to laminates comprising a wood core and said sheet adhered to at least one surface of said core.

Abstract: Method and apparatus for using emitting, ionizing, accelerating and collecting elements in a high vacuum to implant a hard film on a plastic substrate or the like. In preparation, a slug of a selected material to be deposited as a film is placed in the emitter. The specimens or articles to be implanted are placed on supports in the vicinity of the collector. A cover enclosure is then placed in position and the region enclosed by the cover is exhausted to a high vacuum. Selected potentials are applied to various elements of the apparatus and an accelerating/directing field which may be developed electrostatically, magnetically or by a combination of both, is developed in the acceleration structure. The electrostatic field causes electron emission from the ionizing elements to develop an increased charge on the emitted ionized particles.

Abstract: A plastic bucket lid is adapted for removable attachment adjacent its periphery to a bucket. The lid defines an annular open depression adjacent its periphery, and, positioned outwardly from the depression, an annular locking slot for receiving and holding the lip of a bucket. In accordance with this invention, radially-positioned reinforcing fins are carried by the lid within the annular, open depression to restrict the flexing of its outer wall. This, in turn, has been found to reduce the tendency of the lid to be knocked off of a bucket upon being dropped or the like. Preferably, an outwardly positioned annular projection is placed in the locking slot which defines an angle of 80.degree. to 100.degree. to the plane of the annular walls defining the locking slot for improved retention of the lid to the bucket.

Abstract: An aluminum baking form is provided with internal and external coatings of aluminum oxide which are of black coloration and which contain metals other than aluminum and serve as infrared transmitters or collectors. The metal incorporated in the aluminum oxide layer is preferably tin or silver or both.

Abstract: A bentonite composition useful for preventing a flow of water through a structure is disclosed. The composition has substantially all of the bentonite in non-hydrated form by dispersing the bentonite throughout a non-aqueous gel formed from a non-aqueous liquid and a suitable gelling agent for the liquid to form a cohesive mass capable of adhering to a structure while maintaining a desired, cohesive form. The composition can be made into sheets, rods, tubes and the like. For example, the composition can be applied to one side of a water permeable cellulosic fiber containing sheet and the composition side of the sheet secured over an area of potential water flow.

Abstract: In a composite bearing material including a metal strip, a porous sintered metal matrix layer bonded to a surface of said metal strip and a resin composition impregnated into and substantially filling the voids in said porous metal layer and forming a continuous surface layer thereon, the resin composition consists essentially of a blend of 60 to 95 percent by weight of polytetrafluoroethylene and 40 to 5 percent by weight of a copolymer of tetrafluoroethylene and hexafluoropropylene, and mostly all of the copolymer in the composition is included in the surface layer in the form of a fibrillated network.

Abstract: A flexible, fire retardant electrically insulating film material comprising a thermoplastic film backing and a thermoset fire retardant coating on one or both surfaces of the backing. Preferably, a pressure sensitive adhesive coating is applied to either the film backing or overcoated on the thermoset coating.

Abstract: A fastener and method of manufacturing fasteners is disclosed including coating the fastener with a cured, oil-free polyester coating, the cured polyester coating comprising the reaction product of one or more polyols selected from the group consisting of pentaerythritol, trimethylolpropane, glycerol, ethylene glycol, triethylene glycol, neopentyl glycol, trimethylolethane, 1,2 hexanediol, 1,3 butenediol, and mixtures thereof; one or more dibasic organic acids selected from the group consisting of phthalic acid, isophthalic acid, maleic acid, adipic acid, succinic acid, sebacic acid, fumaric acid, and mixtures thereof; and an aminoplast cross-linking agent selected from the group consisting of melamine-formaldehyde, urea-formaldehyde, hexahydroxymethyl melamine, and mixtures thereof.

Abstract: X-ray image intensifying screen including at least one fluorescent layer comprising phosphor particles dispersed in a binder and on top of such layer a protective layer containing a crosslinked polymer mass obtained by an acid-catalyzed reaction of a polymer or mixture of polymers containing reactive hydrogen atoms and a crosslinking agent, the crosslinking agent being an organic compound containing a plurality of etherified N-methylol groups.

Abstract: A glass-polycarbonate laminate wherein a glass layer is bonded to a polycarbonate layer by a bonding system comprised of an organopolysiloxane-polycarbonate block copolymer bonding agent and a polyvinylidine chloride primer, said primer being applied onto either the glass layer or onto said block copolymer.

Abstract: A glass-polycarbonate laminate wherein the glass layer is bonded to a polycarbonate layer by means of a bonding system comprised of an aminoalkyl[poly(aryloxysiloxane)] primer and an organopolysiloxane-polycarbonate block copolymer bonding agent.

Abstract: Congruently melting compositions of gallium garnets containing lanthanum are provided in which trivalent indium is partially substituted for gallium. The lanthanum indium gallium garnets have larger lattice parameters than other rare earth gallium garnets. The lanthanum indium gallium garnets of the invention are represented by the formulaLa.sub.a In.sub.b Ga.sub.c O.sub.12where "a" ranges from greater than about 3.24 to less than 3.32, "b" ranges from greater than about 1.84 to less than about 2.24 and "c" ranges from greater than about 2.48 to less than about 2.88, the total of "a" plus "b" plus "c" being 8. The garnets of the invention are useful as single crystal substrates for supporting magneto-optic and magnetic garnet thin films having large lattice parameters approaching 13 A.

Abstract: A magnetic recording medium comprising a thin film of magnetic material disposed upon a non-magnetic substrate wherein the magnetic material is an alloy of cobalt with a second constituent which may be rhenium, ruthenium or osmium. The magnetic material will have a coercive force of up to 800 Oe and a squareness ratio of up to 98%.

Abstract: Magnetic cores suitable for use in transformers, generators and motors are provided. The core is formed of a laminate of layers of substantially amorphous metal laminae compressed to a rigid composite.