Abstract: The invention provides multi-grade spirally wound paperboard tubes of enhanced flat crush strength construction. The multi-grade spirally wound paperboard tubes of the invention include a plurality of structural paperboard plies having at least two predetermined densities including a lower density and a higher density wherein the higher density is at least about 3% greater than the lower density. The cylindrical bodywall is defined in radial cross section by at least one centrally located paperboard layer disposed between at least one radially inwardly located structural paperboard layer and at least one radially outwardly located structural paperboard layer. The centrally located paperboard layer is formed from the higher density paperboard and the inwardly and outwardly located structural paperboard layers are formed from lower density paperboard.

Abstract: A neutral, dark gray, soda-lime-silica glass having luminous transmittance less than 35 percent, infrared transmittance less than 20 percent, and total solar energy transmittance less than 22 percent (all at 3.9 millimeter thickness) is produced with colorants consisting essentially of 1.0 to 2.2 percent by weight total iron, at least 0.20 percent FeO, 0.01 to 0.03 percent CoO, and 0.0005 to 0.005 percent Se. The flat glass product having such a composition is particularly suitable for use as privacy glazing. The use of the glass as a substrate for a reflectively coated product is also disclosed. A low transmittance, reflective coated article is disclosed comprising a soda-lime-silica glass substrate having luminous transmittance less than 35 percent, infrared transmittance less than 20 percent, and total solar energy transmittance less than 22 percent (all at 3.

Abstract: A method is described for the production of thin boron and titanium/boron films by magnetron sputter deposition. The amorphous boron films contain no morphological growth features, unlike those found when thin films are prepared by various physical vapor deposition processes. Magnetron sputter deposition method requires the use of a high density crystalline boron sputter target which is prepared by hot isostatic pressing. Thin boron films prepared by this method are useful for ultra-thin band pass filters as well as the low Z element in low Z/high Z mirrors which enhance reflectivity from grazing to normal incidence.

Abstract: An explosion-proof porcelain housing for a gas-filled insulating apparatus includes a hollow porcelain housing body having a tapered inner surface, and a resin lined on the inner surface of the porcelain housing body. The thickness of the resin lining decreases along the tapered inner surface.

Abstract: A multi-layer plastic fuel tank is constituted by at least one high-density polyethylene layer, at least one polyamide layer, and at least one modified high-density polyethylene layer made of high-density polyethylene modified with an unsaturated carboxylic acid or its derivatives, which is interposed between each high-density polyethylene layer and each polyamide layer for bonding them, the polyamide layer being made of a polyamide copolymer comprising 90-60 weight % of polyamide 6 and 10-40 weight % of polyamide 66.

Abstract: A hose including at least an inner tube, a reinforcing layer and an outer cover, wherein the inner tube and the outer cover are individually composed of a thermoplastic elastomer comprising a vulcanized rubber dispersed in a thermoplastic resin, M.sub.p defined by the following formula (I) is not greater than 70 kgf/cm.sup.2, and flexural rigidity of the hose at a bending radius four times the outer diameter of the hose is 1 kgf or less: ##EQU1## wherein t.sub.1 and t.sub.2 are the thickness of the inner tube and the outer tube (mm), respectively, and M.sub.1 and M.sub.2 are stress (kgf/cm.sup.2) at 25% elongation of the inner tube and the outer cover, respectively.

Abstract: A vertically adjustable glass pane for automobiles, especially a door window pane, is of laminated glass consisting of two thermally toughened single glass sheets, each 1.5 to 3 mm thick, and of a thermoplastic intermediate layer. Both the glass sheets have, in their edge region, tensile stresses in the core having a value from 27 to 57 MN/m.sup.2 for a sheet thickness of 1.5 mm and 20 to 47 MN/m.sup.2 for a sheet thickness of 3 mm. In the middle area within the peripheral region the glass sheets have tensile stresses in the core which, in the case of a glass sheet of 1.5 mm thickness, have values of 25 to 42 MN/m.sup.2 and, with a glass thickness of 3 mm, values of 17.5 to 33 MN/m.sup.2. Laminated glass panes of this type have a comparatively high strength in the peripheral region and low strength in the middle area. They possess excellent properties both from a structural design standpoint and also from the standpoint of safety in case of accident.

Abstract: A silicon thin film member according to the present invention comprises a supporting substrate and an a-Si thin film formed by plasma CVD and including hydrogen. The a-Si thin film has a distribution of hydrogen density in which a hydrogen content of the a-Si thin film has a maximum value of 1.times.10.sup.22 atoms/cm.sup.3 or more in a position 20 nm or less away from an interface between the a-Si thin film and the supporting substrate, and the maximum value of the hydrogen content is larger than a hydrogen content of the supporting substrate on the interface. The hydrogen content of the a-Si thin film decreases from the position toward the interface and decreases from the position in a direction from the supporting substrate to the a-Si thin film.

Abstract: A thermal insulating material is packed in a sealing bag composed of an obverse face material and a reverse face material, wherein each of the obverse face material and reverse face material is preferably made of a metal foil having a thickness in the range of 3 to 50 micrometers and which is sandwiched by a sealant layer of plastic film adhesively affixed to one side thereof and by a surface layer of plastic film adhesively affixed to the other side thereof (hereinafter termed a metal foil composite plastic film), and then a similarly constructed metal foil composite plastic film, or preferably one having a number of holes therein, is stuck on the outer surface or inner surface of the obverse face material, to thus obtain a vacuum thermal insulating panel. The vacuum thermal insulating panel thus obtained can prevent permeation of gas from the outside, reflect heat, and prevent heat conduction along the outer surface.

Abstract: A high performance, durable sputter coated, heat-treatable glass which after heat-treatment exhibits about 76% or more visible transmittance, a hemispherical emissivity (E.sub.h) of about 0.16 or less, and a normal emissivity (E.sub.n) of about 0.12 or less is formed by sputter coating a layer system on a glass substrate which includes an undercoat and overcoat of Si.sub.3 N.sub.4, a silver layer, and two nickel or nichrome layers on opposite sides of the silver layer, and wherein the lower nickel-based layer is about three times as thick as the other nickel based layer. The increased thickness of the lower nickel-based layer allows the coated glass article to be both heat-treatable, and "low-E" after the heat-treatment. This allows matching with other known glasses in the family of layer components by way of the heat-treatment process.

Abstract: A molded, cup-shaped face mask especially useful for medical and dental personnel has a first, second and third layer. Edge portions of the layers are substantially free of adhesion to one another, and outer edges of the mask are free of any peripheral seal or the like, so that the edge portions of all three layers are movable relative to each other and present a soft, comfortable feel to the wearer. Exhalation of air through the mask is facilitated by the flexible nature of the edge portions, and during inhalation the flexible edge portions are drawn toward a position of conformed contact with the wearer's face.

Abstract: In the double-side pressure-sensitive tapes (A and B) of the first embodiment of the present invention, a first pressure-sensitive adhesive layer (2) comprising a blend of 100 parts by weight of an acrylic or rubber-based pressure-sensitive adhesive composition with from 0.01 to 30 parts by weight of a silicone polymer is formed on one side of a substrate and an acrylic or rubber-based pressure-sensitive adhesive layer is formed as a second pressure-sensitive adhesive layer (3) on the other side. By this, a double-side pressure-sensitive tape in which the pressure-sensitive adhesives, even when being bonded to each other, can thereafter be easily separated is obtained.

Abstract: A laminated ornamental glass article has two transparent glass substrates and three coating layers of opaque figures and crevices between the two transparent glass substrates. This allows a person at one side of the glass article to see through the glass article an object at the opposite side of the glass article, while another person on the opposite side may only see the opaque figures on the glass article. The three coating layers include a glaze figure layer, a white paint layer and a dark, ink layer. Each layer has the same figure patterns and the same crevices, the crevices being adapted to be filled with an adhesive material for bonding the two transparent glass substrates.

Abstract: A tubular food casing, particularly sausage casing, wherein the inner surface of a sausage casing based on cellulose, is provided with a coating comprising alginates, alginic acid, chitosans, or a combination of these active substances, is distinguished by improved peelability.

Abstract: The invention provides a longitudinally extending adhesive tape product adapted to be cut off into a plurality of tape segments by use of a transverse cutting edge. The product comprises a longitudinally extending tape wound into a roll, the tape having a first side which is adhesive free, a plurality of longitudinally separated indicia and a second side which has a corresponding plurality of longitudinally separated and transversely extending coating bands of pressure sensitive adhesive. The coating bands have leading and trailing edges and are separated by portions of the second side of the tape which are substantially adhesive free. The indicia are so located relative to the coating bands whereby when one of the indicia is aligned in a specified relation to the cutting edge and a tape segment is cut off, the cut off tape segment has a single one of the coating bands and the coating band on the cut off tape segment is located adjacent a transverse edge of the tape segment.

Abstract: The thermic protection device is obtained by winding refractory wires with plush loops and radial and reinforcement armament picots, also with refractory fibers, preferably twisted. The plush loops and the picots have a predetermined orientation and/or pitch with respect to the direction of the ablative flow in the hollow structure.Application for the embodiment of the ferrule of a ram jet engine chamber.

Abstract: A pad assembly comprising a multiplicity of flexible sheets each having (1) a similarly sized body portion that has pressure sensitive adhesive on its rear surface and is sized and adapted so that its front surface can be written on, and (2) a smaller tab projecting beyond an edge of the body portion that can be positioned to project from the edge of a sheet to which the sheet is adhered.

Abstract: The present invention is drawn to a blow molded article having a deep recessed lip wherein the lip includes a folded reinforcing layer adjacent a hollow U-shaped portion. The reinforcing layer is formed by the parison folding over on itself in the mold while forming the U-shaped lip. The folded portions are pinched together within the mold and are welded to one another. At various portions around the circumference of the lip, vents are inserted to relieve the pressure within the lip during release of the internal pressure within the molded article.

Abstract: A cover assembly adapted for use on a photograph. The cover assembly includes a flexible conformable polymeric sheet larger than the photograph that has a central visually transparent viewing portion and an outer frame portion, the viewing portion having a size and shape adapted to afford viewing of a central portion of the photograph with edge portions of the photograph extending along the frame portion. The cover assembly has a layer of adhesive on its rear surface along the frame portion that affords firm adhesion and conformance of the sheet to the edge portions of the photograph to hold the photograph against the cover assembly, and adhesion of the sheet around the photograph to a surface to thereby support the photograph and cover assembly along the surface, while being removable from the surface and portion of the photograph without damage thereto.

Abstract: A six-layer anti-reflection coating (20 and 20A) includes three layers (24, 28, and 34) which may be formed from an electrically-conductive metal oxide having a refractive index between about 1.9 and 2.1 at a wavelength of 520 nanometers. Up to a total optical thickness of about one-wavelength of visible light of the electrically-conductive metal oxide may be included in the coating, while still providing less than 0.25 percent photopic reflection.