Abstract: Compositions which cure by UV radiation in less than one second are obtained by mixing an alkenyl containing polydiorganosiloxane, a mercapto functional crosslinker of the mercapto functional polyorganosiloxane or mercapto organic compounds, a photosensitizer, a viscosity stabilizer, and optionally a reinforcing agent. These compositions can be packaged in one container and can be used as the primary coating for optical fibers.

Abstract: Compositions which cure by UV radiation in less than one second are obtained by mixing an alkenyl containing polydiorganosiloxane, a mercapto functional crosslinker of the mercapto functional polyorganosiloxane or mercapto organic compounds, a photosensitizer, a viscosity stabilizer, and optionally a reinforcing agent. These compositions can be packaged in one container and can be used as the primary coating for optical fibers.

Abstract: An adhesion promoter for use with ultraviolet radiation curable siloxane composition is made by combining an alkoxysilicon compound of the formula(RO).sub.3 Si--X--Si(OR).sub.3and a compound capable of catalyzing the reaction between two alkoxy groups or an alkoxy group and a hydroxyl group. Ultraviolet radiation curable siloxane compositions with the improved adhesion are obtained by mixing the adhesion promoter with a mixture which has at least one ultraviolet radiation activatable siloxane polymer and a photoinitiator. These compositions can be used as optical fiber coatings, conformal coatings, and other coating application where adhesion to a substrate is important.

Abstract: Acryl functional silicone compounds are made by reacting an amine functional silicon compound with a di- or multi-functional acryl compound by a Michael-type addition reaction. These acryl functional silicone compounds are purer than others because no catalyst is used and no by-products are formed. These acryl functional silicone compounds can be used as adhesion promoters and as coating compositions which can be cured by ultraviolet radiation.

Abstract: A child-resistant package includes a tray with a compartment therein for receiving articles to be packaged, and a cover member slideably received on the tray and movable relative to the tray between opened and closed positions. The cover member is a flexible member having a top wall and peripheral sidewalls. The peripheral sidewalls of the cover member overlie peripheral sidewalls of the tray and latching members on the sidewalls of the cover member and tray cooperate to retain the cover member in a closed position relative to the tray. The latching members are released by applying an inward pressure to the top wall of the cover member, to thereby bias the sidewalls of the cover member outwardly relative to the sidewalls of the tray. An abutment member on the tray prevents such inward deflection of the top wall of the cover member in the event that a child bites down on the package in the forward region thereof.

Abstract: A method is disclosed for the preparation of ceramic materials or articles by the pyrolysis of mixtures of vinyl- or allyl-containing preceramic silazane polymers, mercapto compounds, and photoinitiators wherein the mixtures are rendered infusible prior to pyrolysis by ultraviolet (UV) irradiation. This method is especially suited for the preparation of ceramic fibers.

Abstract: Compositions which cure by UV radiation in less than one second are obtained by mixing an alkenyl containing polydiorganosiloxane, a mercapto functional crosslinker of the mercapto functional polyorganosiloxane or mercapto organic compounds, a photosensitizer, a viscosity stabilizer, and optionally a reinforcing agent. These compositions can be packaged in one container and can be used as the primary coating for optical fibers.

Abstract: A package including a unique container adapted to cooperate with a closure for establishing a seal wherein the container includes a lower body section for receiving a material therein, and an upper, elongate finish joined to the body section. The finish includes an outer peripheral surface, and an inner peripheral surface defining a passageway communicating the finish with the interior of the lower body section of the container. The upper region of the finish has a stepped configuration in either one or both of the inner and outer peripheral surfaces thereof, and each stepped configuration includes a generally vertically oriented, circumferentially continuous surface segment extending for only a part of the elongate extent of the finish, and a horizontal, upwardly facing ledge section joined at a junction to the inwardly facing surface segment.

Abstract: A package includes a container having an upper finish with inner and outer surfaces. The outer surface includes threads adjacent the top of the finish, and the inner surface includes a lower sealing section located solely in a section of the finish spaced downwardly from the upper margin of said finish. A closure for the container includes an inner valve having an outer sealing surface for frictionally engaging only the lower sealing section of the inner finish surface to provide a leak-proof seal for the package.

Abstract: Acryl functional silicone compounds are made by reacting an amine functional silicon compound with a di- or multi-functional acryl compound by a Michael-type addition reaction. These acryl functional silicone compounds are purer than others because no catalyst is used and no by-products are formed. These acryl functional silicone compounds can be used as adhesion promoters and as coating compositions which can be cured by ultraviolet radiation.

Abstract: The invention is the use of a solid conductive polymeric composition, which displays a massive resistance increase upon exposure to an external fault condition, as one plate of a capacitor for a continuous sense and locate device. This resistance increase of the conductive polymeric composition (CPC) decreases the capacitance of the capacitor so as to provide an indication of the fault and its location.

Abstract: An apparatus for monitoring the value of one or more physical parameters, the apparatus including a plurality of physical monitoring modules, master electronics, and structure for interconnecting each of the modules and the master electronics. Each module includes a logic section and a transducer section. The logic section receives a logic signal and responds by activating the transducer. The logic signal is passed to the next module according to a clock pulse which is generated from the master electronics. The transducer senses a physical parameter. When activated, the transducer responds to the physical parameter with an electrical signal and communicates the electrical signal to the master electronics which utilizes the electrical signal for monitoring purposes.

Abstract: A temperature excursion sensor and locator consisting of a temperature sensitive cable which includes two electrical conductors separated by a dielectric member to form a linear strip capacitor wherein at least one of the conductors is comprised of a number of thermostatic devices connected serially. An over or under temperature excursion is sensed and located by the cable when it is connected from either end to control electronics by measuring the capacitance of the cable. Under normal conditions, all of the thermostatic devices are electrically conducting and the control electronics measures the full capacitance. Upon occurrence of a temperature excursion, one or more thermostatic devices become non-conductive and the resulting measured capacitance is proportionately reduced.

Abstract: The invention is an over-temperature sensor and locator utilizing a temperature sensitive cable comprising (1) an electrical conductor, (2) a dielectric, and (3) a solid, conductive polymeric, positive temperature coefficient of resistance composition. An over-temperature condition at any point along the cable is detected by a drop in the capacitance of the cable, as measured from one end of the cable. The location of the over-temperature point on the cable is determined by comparing the reduced capacitance from the control end to the over-temperature point with the capacitance of the full cable length.

Abstract: Hydrophobic reinforcing silica fillers for silicone rubber are produced by the steps of mixing an alkyl silicate, preferably methyl orthosilicate, at least 70% of one-half of the stoichiometric amount of water required to hydrolyze the alkoxy radicals present in the alkyl silicate, an alcohol and at least 0.05 moles (per mole of theoretical SiO.sub.2 units present in the alkyl silicate) of a hydrophobe agent such as hexamethyldisilazane together in the presence of a basic catalyst, said hydrophobe agent being added prior to the gelation of the mixture, and aging the mixture to obtain a composition containing a hydrophobic reinforcing silica filler for silicone rubber. Preferably, the hydrophobe agent is added prior to or concurrently with the addition of the alkyl silicate. Vulcanized silicone rubbers possessing tensile strengths in excess of 12.4 megapascals and tear strengths of greater than 31 kiloNewtons/meter can be prepared using the above fillers.

Abstract: A crossed-field switch device is connected in parallel to a load device which may arc. The characteristics of the crossed-field switch device are that it will not conduct when a high voltage is applied, but when the load device arcs, the crossed-field switch device conducts, taking current from the arc so that the arc quenches. The crossed-field switch device thus is a crowbar which is automatically conductive when the applied voltage decreases due to a line or load short.

Abstract: An article having two sections which are articulated to one another by at least one hinge that includes a substantially spherical male hinge member disposed within a recess provided by a surface of a female hinge member. The hinge includes retaining means for confining the male hinge member within the recess while permitting rotational motion of the male hinge member within the recess. The male member is a continuous molded extension of one section of the article and the female hinge member is a continuous molded extension of the other section of the article.

Abstract: An article having two sections which are articulated to one another by at least one hinge that includes a substantially spherical male hinge member disposed within a recess provided by a surface of a female hinge member. The hinge includes retaining means for confining the male hinge member within the recess while permitting rotational motion of the male hinge member within the recess. The male member is a continuous molded extension of one section of the article and the female hinge member is a continuous molded extension of the other section of the article.A mold for use in manufacturing the above-described article includes upper and lower mold sections which, when brought into mating relationship with each other, provide article section forming compartments adjacent to each other for forming the sections of the article. A female hinge member forming compartment communicates with one of the section forming compartments. A mold segment interrupts the female hinge member forming compartment.

Abstract: In addition to the anode and cathode electrodes which define a low pressure gas filled main gap therebetween and a magnetic field to lengthen the electron path, the crossed-field switch device has a control electrode defining a second gas filled control gap in communication with the first, main conducting gap. An auxiliary voltage supply can be connected to the control gap to ignite a low pressure discharge, and the ionized plasma of this discharge leaks into the first gap to start a discharge in the glow mode.

Abstract: Three electrodes define two gaps in the crossed-field tube so that while one gap is holding off high voltage the other can be ignited to turn the tube on with high voltage applied. The three electrodes act as anode, cathode and control electrodes and define the main and ignition gaps. The intermediate electrode is gridded and the control electrode is connected to one of the other electrodes through an impedance to prevent hollow cathode discharge.