Abstract: Disclosed is an assembly or matrix comprising an arrangement of integrally fused tubes forming a series of nonporous, longitudinal parallel passageways therethrough. The matrix is of a low-expansion ceramic material and the passageways therethrough have thin walls; a high proportion of the cross-sectional or frontal area of the matrix is free open area. Also disclosed are methods for making such a matrix from glass tubes that are thermally crystallizable; one method involves longitudinally bundling the tubes with their ends sealed and heating the assembly to soften, expand and fuse the tubes in a heat treatment schedule that also nucleates and thermally crystallizes the matrix to the final ceramic product. Another embodiment involves superimposing a plurality of layers of tubes, one layer above the other in successive parallel planes, with the tubes in each plane being essentially parallel to each other and transverse to the tubes in adjacent layers.

Abstract: This invention relates to method and apparatus for producing a composite container having a neck label or tubular sleeve mounted temporarily thereon adapted to be shrunken into final surface covering position. The tubular sleeve is preformed of relatively-stiff material and flat-folded until ready for use when it is partially opened and conveyed into axial registry with a container therebeneath. The sleeve preform of heat-shrinkable plastic material is telescopically assembled onto the container while the latter is firmly retained at an upper region. The retention device for the container serves to both fully open the sleeve preform and align the preform and container into axial arrangement. A reciprocatable head contacts the preform while so retained and telescopes the preform at least partially over the container.

Abstract: The method permits selective cooling of tubular plastic material as formed to provide for an exchange of internal cooling air through the central opening of the blow head. Air supply rings having outlet slots facing the tubing, as well as air guide surfaces of small axial length, are provided inside the tubing and spaced from the annular die orifice to serve to support the tubing. The interior cooling air supply rings have axially directed passages for the flow of cooling air while the exterior air supply ring or rings deliver air at higher temperatures to provide a substantial thermal differential between the tube surfaces as formed to provide a flare-top edge upon severance. Also, the method permits forming a foam-film composite of thermoplastic materials by the blown bubble co-extrusion process.

Abstract: Disclosed are B.sub.2 O.sub.3 -containing glass-ceramic bodies made by in situ thermal crystallization of glasses and useful as a host for diffusion doping of semiconductors by the vapor phase transport of B.sub.2 O.sub.3 to the semiconductor from the glass-ceramic which in mole percent consists essentially of SiO.sub.2 15-40, Al.sub.2 O.sub.3 15-30, B.sub.2 O.sub.3 20-60, RO 5-25, La.sub.2 O.sub.3 0-5, Nb.sub.2 O.sub.5 0-5 and Ta.sub.2 O.sub.5 0-5 wherein RO is selected from MgO, CaO, SrO and BaO in specified percentages, and mixtures thereof and wherein the ratio Al.sub.2 O.sub.3 to RO is 1.5-4.

Abstract: A method for article coding using transparent indicia formed essentially of aluminum monohydrate. An article may be marked with a serial number or the like with a liquid material consisting essentially of aluminum monohydrate. When dried, the marking will be transparent. The marking will have a higher affinity for indicator solutions than will the substrate, and will therefore become visible when the article is sprayed or coated with such a solution. The article may be glass, metal, paper, wood or plastic. If the substrate material permits, heating to 300.degree. C. after coating with the indicator solution will destroy the indicator and render the marking or indicia transparent again.

Abstract: A single piece semi-rigid plastic carrier for glass containers is provided with the carrier comprising a planar top panel, which includes gripping means and a plurality of apertures adapted to supportingly receive a plurality of containers for holding same in a multipack assemblage, a generally sinusoidal type peripheral wall extends downwardly from the outer margins of the planar top panel and merges with a peripheral skirt which skirt, in turn, merges with a lip which is generally parallel to the planar top panel.

Abstract: A child-resistant, safety closure for a container having a dispensing end including a threaded neck portion onto which the closure is adapted to be threadably assembled. The closure includes an interiorly threaded sidewall having a flexible and resiliently distensible distal end portion provided with at least one interlocking member on its interior surface adapted to automatically interlockingly engage at least one complementary interlocking member on the dispensing end of the container when the closure is in either a fully closed or in at least one additional, partially removed position on the container neck portion.

Abstract: An improved touch actuated capacitance switch. A series of conductive touch pads are formed on one face of a dielectric material substrate plate. The touch pads are deposited by techniques which result in metallic films that are quite sensitive to damage by abrasion. To protect these pads, a protective overcoat is put over each touch pad, the overcoat obscuring no more than about seventy-percent of the total area of the touch pad. On the other face of the substrate plate are adhered a series of conductive sites, each site being in alignment across the thickness of the substrate plate with one of the touch pads. The conductive sites are then interconnected by a conductor network to give a predefined logic pattern.

Abstract: Disclosed is a method of making a plastic drum having a radially extending projection near its top to which is crimped a circumferential metal carrier ring adapted to be grasped by conventional metal drum chime handling devices; and the resulting product.

Abstract: Disclosed is a screw extruder apparatus, having passages to drain melt as formed into a central bore of the screw, which is physically separated by seal means into a first zone on the feed side advancing plastic toward said seal and a second zone on the opposite side of said seal means into which drained melt passes from the bore and is pumped back toward said seal and out a lateral exit orifice adjacent said seal means. The temperature of the melt in the second zone can be independently controlled. In one embodiment means are provided to maintain an essentially constant pressure in said second zone.

Abstract: Disclosed is a method of making a hollow plastic article by blow molding, followed by reshaping said article by mechanical means outside the blow mold. Also disclosed is a plastic drum having an integral upstanding peripheral plastic rim adapted to be grasped by steel drum chime-handling devices.

Abstract: There is disclosed a process for preparing low molecular weight, low viscosity, liquid polymeric materials by the polymerization of at least one selected acrylic monomer under a pressure in excess of atmospheric pressure and at a temperature not exceeding the ceiling temperature of the polymeric material product at the polymerization pressure. Preferably there is used a methacrylate monomer.The resulting polymeric products can be used to prepare single-component coating vehicles which are non-drying at room temperature, but which can be cleanly removed by heating at elevated temperatures.

Abstract: An improved closure assembly for plastic drums is provided which includes female buttress threads formed on a tubular projection of the drum head, and an adaptor inserted into the tubular projection threadably engaging the buttress threads, the adaptor having internal standard pipe threads adapted to receive standard pipe threaded members, like dispensing valves, pump fittings, as well as standard bung plugs. Means are also provided for sealingly isolating the buttress thread inter-engagement to prevent product accumulation therebetween and means are also provided for locking engagement of the adaptor and the tubular projection on the drum.

Abstract: Linear copolyesters are contemplated having the following repeating units: ##STR1## and ##STR2## and --O--CH.sub.2 --CH.sub.2 --O-- in their backbone structure. These polyesters have utility in the packaging industry for packaging various comestibles.

Abstract: Improvements in methods for protecting comestibles, e.g., foodstuffs, medicines, and other like related substances are provided wherein these substances are enveloped in packages, preferably a molded container, which is formed from a linear copolyester consisting essentially of the reaction product of isophthalic acid, optionally, terephthalic acid, and bis(4-beta-hydroxyethoxyphenyl)sulfone, and ethylene glycol. The amount of isophthalic acid, and when employed terephthalic acid, will be in the range of from about 15 to 100 mole percent of isophthalic acid and from about 85 to zero mole percent of terephthalic acid.

Abstract: Improved coatings on polycarbonate or acrylic articles are provided with the coating consisting essentially of the heat cured reaction product of the combination of a prescribed solvent-soluble further-curable organopolysiloxane, an alkylated melamine formaldehyde partial condensate resin and a prescribed composition which contains a linear diol, a thermosetting acrylic, a crosslinking agent, and an effective ultraviolet stabilizing amount of an ultraviolet stabilizer.

Abstract: There is disclosed the preparation of a liquid crystal containing structure by incorporating a liquid crystal substance into a polymeric matrix so as to form a thin, layer-like structure of controlled thickness. The resulting structure is highly suitable for use in display and/or memory devices or other devices utilizing liquid crystal properties.

Abstract: Copolyesters having an oxygen permeability of less than 15 cc.multidot.mil/100 in..sup.2 .multidot.day.multidot.atm. (at 50% relative humidity and about 73.degree. F.) and a glass transition temperature in excess of 72.degree. C. and having the following four repeating units are contemplated: ##STR1## Based on reactant charges the ratio of (b) units to (a) units will be about 80:20 to about 20:80. Containers made of these polyesters for packaging products of commerce like comestibles are also contemplated.

Abstract: Thermally crystallizable glass and glass-ceramic compositions, having a narrow critical range of compositions coming within the SiO.sub.2 -Al.sub.2 O.sub.3 -Li.sub.2 O system, consist essentially of SiO.sub.2, Al.sub.2 O.sub.3, Li.sub.2 O, TiO.sub.2 and ZrO.sub.2, contain 18.2-20.3 parts Al.sub.2 O.sub.3 per 100 parts by weight of SiO.sub.2 +Al.sub.2 O.sub.3 +Li.sub.2 O, have Li.sub.2 O to Al.sub.2 O.sub.3 molar ratio of 0.55 to 0.63, and contain 2.8-5 weight percent TiO.sub.2 +ZrO.sub.2. Glass-ceramics of superior static fatigue resistance can be made from such glasses.

Abstract: Linear copolyesters formed from (A) isophthalic acid and, optionally, terephthalic acid and (B) bis(4-beta-hydroxyethoxyphenyl) sulfone and ethylene glycol are described. The linear polyesters contemplated have glass transition temperatures higher than that of poly(ethylene terephthalate) and oxygen and CO.sub.2 permabilities less than that of poly(ethylene terephthalate).