Abstract: A process for the production of polyhalocarbon oxides not requiring the use of light is disclosed. This process involves introducing into a reaction zone perhaloolefin and ozone. The polymers obtained are substantially free of oxidizing linkages. The polyhalocarbon oxides and hydrolyzed products obtained therefrom are useful as intermediates for stabilized materials useful, for instance, as heat transfer media and lubricants, and for cured materials useful, for instance, in sealant systems and adhesive systems.

Abstract: A device adapted for supporting a high inertia spool of stretchable strip material which strip material is withdrawn from the spool at varying rates by a strip applicating machine. The device includes a member which guides a length of the strip material being withdrawn. The guide member is adapted to be pivoted by tension in the strip material being withdrawn, and when pivoted activates a variable speed motor which rotates the spool to unwind the strip and maintain tension in the strip below an acceptable value. The motor is coupled to the spool through a worm drive which brakes rotation of the spool when the motor is de-energized to restrict over-running of the spool after tension in the strip is decreased.

Abstract: A tape cartridge for semi-permanently housing a removable tape spool rotatably supported in the cartridge by a pair of spring biased dowels that serve as axles for the spool and are associated with and held by a pair of collars that fit in apertures in the end walls of the cartridge.

Abstract: The disclosed substantially spherical capsules are particularly adapted for containing a liquid and have permeable or semi-permeable capsule walls. The capsule walls can comprise a first crystalline phase, an amorphous phase which ordinarily is intimately associated with the crystalline phase, and, preferably, a dispersed (discontinuous) second crystalline or semi-crystalline phase such as a wax. These capsules have the ability to release a solute by an effect resembling osmosis and to release a liquid by a transmission and evaporation mechanism.

Abstract: A gas mask assembly for snouted animals is disclosed having a nose cap member for covering the nostrils and anterior portion of the animal's snout and having an opening therein for the attachment of a breathing tube. An abutment in the nose cap member prevents the animal's nostrils from becoming occluded by said nose cap member. A flexible sleeve member, formed from substantially gas impermeable material, is secured to the nose cap, and an immobilizing cinch is secured to the marginal portion of the sleeve member to afford sealing engagement for the sleeve member against the animal's snout and to restrain the animal's movements.

Abstract: Sunscreening compositions are disclosed which comprise a pharmaceutical extending medium having incorporated therein a substantive, dermally non-irritating, ultraviolet light absorbing compound which is a polyfunctional organic molecule containing two or more ultraviolet absorbing moieties connected by two or more polar linking groups to one or more aliphatic bridging groups. These sunscreening compositions are resistant to removal by water and mild abrasion but are readily removed by soap and water.

Abstract: A test form for use with a test scoring apparatus of the type for sensing the presence of indicia in answer indication areas on the test form. The test form includes a longitudinal column of timing marks positioned in relation to the answer indication areas to time the sensing of each answer indication area. The test form is characterized by the answer indication areas having enlarged dimensions so as to facilitate the use of the form by very young students and persons with less proficient motor skills.

Abstract: Perfluoroalkanesulfonate esters of methylthio-, methylsulfinyl- or methylsulfonyl-substituted phenols. The compounds are herbicides.

Abstract: Certain substituted 6,7-dihydro-1-oxo-1H,5H-benzo[ij]-quinolizine-2-carboxylic acids and hydrazides, esters, amides and salts thereof, intermediates therefor, and a process for their preparation are described; the compounds are active as anti-microbial agents.

Abstract: An apparatus and method for applying folded lengths of pressure-sensitive adhesive tape to articles with one-half of the adhesive surface of the tape length secured to an article and a liner secured to the other half of the adhesive surface. The adhesive tape is folded to leave the adhesive surface exposed. A liner which may be wider than the folded tape is then secured to the adhesive on one-half of the folded tape. The tape and liner composite is cut and a movable vacuum pad applies the cut length to the article with the exposed adhesive applied to the article. The wide liner is easily removed when the tape tab is to be used.

Abstract: Adhesive compositions useful on sealing-strips for highways and for other purposes comprise high boiling viscous aromatic process oils fortified with minor amounts of styrene-diene block copolymer.

Abstract: For wine bottles and similar containers, an improved heat-shrunk film tape secondary closure of the type employing a tear strip to facilitate opening. The film is formed of certain acrylonitrile:methylacrylate or butadiene:styrene copolymers, which conform smoothly and tear cleanly, thereby enhancing the appearance of both the sealed and opened containers.

Abstract: Silver halide crystals in photographic emulsions are sensitized by the addition of compounds to the emulsion which will form silver sulphide with the silver halide crystals at a fast reaction rate v, where v = k. [concentration of the sensitizer compound in the emulsion] and k, the rate constant for the sulphide formation under the digestion conditions is in the range of from 0.1 to 100 min.sup.-.sup.1, and preferably at 0.5 to 10 min.sup.-.sup.1, provided that the sensitizer compound will distribute itself over the silver halide crystal surfaces at a rate which is fast as compared with the reaction rate of the sensitizer compound with the silver halide crystals so that substantially every silver halide crystal has an amount of sensitizer compound adsorbed to its surface from the beginning of the reaction sufficient to give the emulsion good contrast but not sufficient to cause fog.

Abstract: A rapid drying photographic element suitable for rapid processing by the stabilization process is provided. The element comprises a support bearing (1) an acidic developer layer and (2) a basic gelatino-silver halide emulsion layer, both layers containing a binder comprising a substantial amount of colloidal silica.

Abstract: Autoclavable, corrugated, respiratory care tubing comprising thermoplastic material which is aliphatic olefin polymer, aromatic olefin block polymer or mixtures thereof, the material being hydrolytically stable, having a flexular modulus according to A.S.T.M. D-790 of less than 1800 kg/cm.sup.2, having a Shore A hardness according to A.S.T.M. D-2240 of from 45 to 92 and being substantially dimensionally stable in steam at temperatures of at least about 120.degree. C.

Abstract: A separator for separating small permanent magnetic particles from larger objects comprising a non-magnetic perforated basket within a non-magnetic solid wall container, both within a generally vertical rotating magnetic field. The basket supports the mixture of permanent magnetic particles and objects and has perforations larger than the permanent magnetic particles and smaller than the objects. The container extends below the magnetic field to receive the magnetic particles as they are separated and to retain them outside of the influence of the magnetic field.

Abstract: A multitrack recording head having a pair of ferrite combs whose teeth are separated at their tips by nonmagnetic gap spacers and whose bases are in abutting relationship. Each tooth of one comb has a wire coil for electrically transmitting signals to or from each track of the head.

Abstract: Epoxy resin is mixed with a salt of bis(fluoroalkylsulfonyl)methane or fluoroalkylsulfonic acid as a latent catalyst, phosphorus pentoxide, and a base (which acts as an acid scavenger for phosphoric acids resulting from hydration of the phosphorus pentoxide), to provide a one-part, latent, moisture and room temperature curable epoxy resin composition.

Abstract: An aqueous, alkaline, inorganic composition, comprising water-soluble alkali metal silicate and zinc hydroxychloride, is used to coat substrates normally infested by algae, such as silicate-containing building material, e.g., concrete roofing tiles, to prevent or minimize algal infestation on said substrates, said algae otherwise imparting a dark, unsightly appearance thereto.

Abstract: Self-emulsified polyurethane or polyurethane-polyurea or polyurea latices formed by reacting an aromatic polyisocyanate such as a polyurethane prepolymer with a strong sulfonating agent selected from H.sub.2 SO.sub.4, SO.sub.3, ClSO.sub.3 H, and mixtures thereof, converting the sulfonated polyisocyanate to a sulfonic acid salt by reaction with a base, and mixing the polyisocyanate in water to obtain chain extension and self-emulsification thereof.