Abstract:
An improved mercury-dispensing combination of materials is made up of a compound A including mercury and a second metal selected among titanium, zirconium and mixtures thereof and an alloy or an intermetallic compound B including copper and tin, said mercury-dispensing combination of materials further containing an amount of oxygen comprised between 0.03% and 0.48% with respect to the overall weight of the composition A+B. It is also possible to add a getter material C that includes metals such as titanium, zirconium, tantalum, niobium, vanadium and mixtures thereof or their alloys with other metals such as nickel, iron, aluminum.
Abstract:
Rechargeable lithium batteries are described comprising an airtight container, electrodes immersed in an electrolytic solution and spaced apart by means of one or more separators, electrical contacts connected to the electrodes and a means for sorbing harmful substances formed of a multilayer polymeric sheet comprised of an inner layer of a polymeric material containing particles of one or more getter materials for the sorption of the harmful substances, and at least one external protective layer of a polymeric material impermeable to the electrolyte, wherein all the polymeric materials are permeable to the harmful substances.
Abstract:
A sealant composition for insulation of devices that are sensitive to penetration of moisture from the external environment is described. The sealant composition has ethylene-octene copolymers, a maleic anhydride modified polyolefin, an ethylene-vinyl acetate copolymer, at least one inert filler, at least one moisture scavenger, and at least one stabilizing or antioxidant preserving agent.
Abstract:
A desiccant composition containing a polymeric binder and a dispersion of powders of desiccant materials is described. The desiccant composition has desiccant powders that are dispersed at least in part in form of micro-aggregates of desiccant particles surrounded by a polymeric encapsulating material having a different composition with respect to the polymeric binder.
Abstract:
A nitrous oxide room temperature purification method, apparatus and system utilizing at least partially oxidized nickel. In an embodiment, a room temperature regenerable N2O purifier includes a vessel having an inlet and outlet, an active portion being at least partially filled with a purification material comprising nickel oxide and optional elemental nickel, wherein the weight ratio between the nickel oxide and the optional elemental nickel is equal or higher than 3 and the surface area of the nickel oxide and the optional elemental nickel is equal or higher than 50 m2/g.
Abstract:
Cesium mixtures are produced based on the use of a mixture of at least one reducing agent and at least one cesium compound selected among molybdate, tungstate, niobate, tantalate, silicate and zirconate. The cesium mixtures are useful in the production of OLED-type screens.
Abstract:
An asymmetric bistable shape memory alloy inertial actuator capable of preventing accidental actuation caused by environmental temperature variations but preserving temperature-related safety features and its use in devices.
Abstract:
The present invention relates to linear actuators comprising an electrically-controlled shape memory alloy coil spring (23) suitable to provide linear displacements in valves, switches, lock systems and provided with a crimped terminal at each extremity, each of said crimped terminals comprising a crimping component (21) and an engaging member (22) suitable to mount the spring (23) into the linear actuator. The invention further discloses the use of said spring (23) with particular geometrical characteristics and crimping system assuring the maximization of the available stroke and fatigue life, structural simplicity, low electrical power requirements and thermal inertia, small size.
Abstract:
Curable polymeric compositions with improved barrier property to oxygen suitable to be used on flexible substrates containing a bisphenol F epoxy resin, at least an epoxy acrylate component and at least a rubber modified bisphenol and further comprising EVOH capsules or beads dispersed therein. The polymeric compositions are applicable either by a melt or liquid coating technique and undergo curing upon exposure to heat, showing viscoelastic properties and suitable to provide a cured product having high durability.