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Class 252/181.7 - Magnesium, alkali-metal, or alkaline-earth metal


Subclass of Class 252 - Compositions
Definition: Materials which contain magnesium, an alkali metal, an alkaline
No. of patents: 48
Last issue date: 10/21/2008


1    
NumberTitleIssue Date
7438829Thick film getter paste compositions for use in moisture control
The invention is directed to a screen-printable getter composition comprising: (a) glass frit; dispersed in (b) organic medium. The invention is further directed to a screen-printable thick film getter composition comprising: (a) glass frit; and (b) desiccant materi...
10/21/2008
7371335Curable thick film compositions for use in moisture control
The invention is directed to a thick film getter composition comprising: (a) desiccant material; dispersed in (b) organic medium comprising (1) curable organic polymeric binder; (2) monomer; and (3) photoinitiator. ...
05/13/2008
7160368System and method for gettering gas-phase contaminants within a sealed enclosure
A getter and method for making is provided for removing unwanted impurities from the main body of a sealed hermetic enclosure or package containing one or more devices or objects that have sensitivity to contact with the impurity. The getter may be formulated from g...
01/09/2007
7090787Drying getters
A zeolite and an organic binder are mixed with a solvent to form a paste (302). The paste is then cast or molded (304) into the desired shape. A portion of the solvent is allowed to evaporate from the paste, hardening the getter (306). Getters a...
08/15/2006
7083825Composition used in producing calcium-rich getter thin film
An improved getter device and method for forming a calcium-rich getter thin film in an electronic vacuum device is disclosed. The getter device includes a powder of a Ca—Ba—Al ternary alloy composed of between 53% and 56.8% by weight of aluminum, from 36% to 41....
08/01/2006
7001535Polymer formulation for removing hydrogen and liquid water from an enclosed space
This invention describes a solution to the particular problem of liquid water formation in hydrogen getters exposed to quantities of oxygen. Water formation is usually desired because the recombination reaction removes hydrogen without affecting gettering capacity a...
02/21/2006
6948374Capacitive pressure sensor and its manufacturing method
A capacitive pressure sensor and its manufacturing method can simplify the alignment and the bonding process in a vacuum, and stably carry out the bonding process. The capacitive pressure sensor includes an insulating, first substrate with a capacitance electrode, a...
09/27/2005
6936354Systems for conversion of water into hydrogen and sorption of hydrogen in electronic devices
The invention teaches a system suitable for use in a water-sensitive electronic device which comprises two superimposed layers, the first material of which is formed of a material capable of sorbing hydrogen, the second material formed of a material capable of conve...
08/30/2005
6935183Portable system for measuring the internal pressure of a vacuum insulating panels
A portable apparatus for measuring the internal pressure of a vacuum panel is described, includes a measuring head having an cavity wherein a sensor of movement is arranged; the device, supported on a portion of the envelope of the panel, detects the movement of a p...
08/30/2005
6842473Water getter devices for laser amplifiers and process for the manufacture thereof
Water getter devices (10) are provided which comprise a powdered water getter material (18) in a container that is permeable to gases but capable of retaining solid particles and does not need welding. A process for the production of said devices is al...
01/11/2005
6753647Composition of getter and field emission display using the same
A composition of a getter and a field emission display (FED) using the same are disclosed which are capable of improving a degree of vacuum and a gas rejection capability by performing an activation process by using a getter that can lower an activation temperature....
06/22/2004
6506319Getter materials capable of being activated at low applied temperatures
Compositions containing getter material and getter devices for which gettering activity can be activated to applied temperatures that are lower than those temperatures required for activating the getter material alone are disclosed. In one aspect, a gette...
01/14/2003
6426314Hydrogen scavengers
There has been invented a codeposition process for fabricating hydrogen scavengers. First, a π-bonded allylic organometallic complex is prepared by reacting an allylic transition metal halide with an organic ligand complexed with an alkali metal; and the...
07/30/2002
6416726Method for decomposing nitrogen fluoride or sulfur fluoride and decomposing reagent used therefor
A method for decomposing nitrogen fluoride or sulfur fluoride, comprising contacting gaseous nitrogen fluoride or sulfur fluoride with a solid reagent comprising elemental carbon, one or more of the alkaline earth metal elements and optionally one or more...
07/09/2002
6398980Method for producing a nonevaporable getter
A process is provided for the production of porous non-evaporable getter materials comprising at least one first element selected from Zr and Ti and at least one second element selected from V, Cr, Mn and Ni. The starting metal powders are produced by red...
06/04/2002
6322720Nonevaporable getter
It is described a process for the production of porous non-evaporable getter materials comprising at least one first element selected between Zr and Ti and at least one second element selected among V, Cr, Mn and Ni, wherein the starting metal powders are...
11/27/2001
6306314Evaporable getter device with reduced activation time
An evaporable getter device containing a mixture of nickel and BaAl4 is made to have a shorter barium evaporation time by using a mixture of nickel powders in which the particles of nickel have different morphologies and different specific area...
10/23/2001
6284153Oxygen scavenging metal-loaded high surface area particulate compositions
An oxygen scavenging composition composed of a carrier and a metal coated, inert, porous particulate material having the metal substantially in a zero valence state. The composition is contained within the interior cavity of a container to scavenge oxygen...
09/04/2001
6200494Combination of getter materials and device for containing the same
A combination of getter materials particularly suitable to maintain vacuum in devices which cannot be heated at temperatures higher than about 200° C. The getter comprises: a mixture MO/Pd between an oxide of a transition metal MO chosen among cobalt oxi...
03/13/2001
6186849Process for the production of flat-screen grids coated with non-evaporable getter materials and grids thereby obtained
A process is disclosed for making grids for flat-panel displays. The screen grids are coated with non-evaporable getter materials and the metal sheet forming the grid is coated with a coating that is as thick as the resulting grid and having at least the ...
02/13/2001
6139768Nitrogenated evaporable getter devices with high fritting resistance and process for their production
Nitrogenated evaporable getter devices are disclosed which are resistant to the fritting conditions of the production processes of kinescopes for times of about five hours. A process is also disclosed for the production of these devices. The nitrogenated ...
10/31/2000
6063307Polymer system for gettering hydrogen
A novel composition comprising organic polymer molecules having carbon-carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces. Organic polymers molecules containing carbon-carbon double bonds throughout their structures, pre...
05/16/2000
5972442Strengthening agent, strengthened metal halide particles, and improved lamp fill material
Particle compositions are described comprising certain metal halides in combination with a strengthening agent. The addition of the strengthening agent to a metal halide particle increases the particle's strength thereby reducing breakage on impact and du...
10/26/1999
5885682Vacuum heat insulation panel
A vacuum heat insulation panel for refrigerators and freezers comprises a thin-box shaped enclosure (4) for controlling permeation of the open air, and therein a core member (2) with thermal insulating properties and a barium-lithium alloy getter (3) whic...
03/23/1999
5837158Polymer formulations for gettering hydrogen
A novel composition comprising organic polymer molecules having carbon-carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces. Organic polymers molecules containing carbon-carbon double bonds throughout their structures, pre...
11/17/1998
5716588Getter materials for deoxygenating ammonia/oxygen gas mixtures at low temperature
A method for removing oxygen from ammonia at low temperature is described. In one embodiment, oxygen contaminated ammonia is contacted with a getter material that includes iron and manganese that sorbs oxygen to yield ammonia that is substantially oxygen ...
02/10/1998
5649430Insulating foam of low thermal conductivity and method of preparation
Insulating foam for refrigerators and the like is prepared by blowing in the presence of carbon dioxide as the sole or principal blowing agent. The thermal conductivity of the foam is decreased by sealing said foam in a gas-impervious enclosure with at le...
07/22/1997
5312607Process for the sorption of residual gas by means by a non-evaporated barium getter alloy
The process of the present invention provides for the sorption of residual gas in a vessel by means of a non-activated, non-evaporated barium getter. It comprises the steps of reducing an alloy of Baz +(Ba1-x Ax)n
05/17/1994
5312606Process for the sorption of residual gas by means of a non-evaporated barium getter alloy
The process of the present invention provides for the sorption of unwanted gas in a vessel by means of a non-evaporated barium getter. It comprises the steps of reducing an alloy of Ba1-x Ax Li4-y By to a partic...
05/17/1994
5180554Method of detecting the presence of moisture in a gas
A method of cleaning atmosphere gas used in manufacturing high-purity fine particles of reactive metals comprises the steps of: letting the moisture existing in the atmosphere gas condense into dew droplets using a cryogenic cooling medium; removing the m...
01/19/1993
4924146Unsaturated high-pressure sodium lamp
The invention relates to an unsaturated high-pressure sodium lamp provided with a discharge vessel enclosing a discharge space, having a ceramic wall and closed at both ends by a leadthrough element to which an electrode is secured, and at least one elect...
05/08/1990
4888032Salts of cationic-metal dry cave complexes
Salts containing cations of the formula: ##STR1## (in which M is Co, Fe, Cr or Mn, X, Y, R1, The Government has rights in this invention pursuant to Contract Number CHE-75-14837 awarded by the National Science Foundation....
12/19/1989
4853148Process and composition for drying of gaseous hydrogen halides
A process for drying a gaseous hydrogen halide of the formula HX, wherein X is selected from the group consisting of bromine, chlorine, fluorine, and iodine, to remove water impurity therefrom, comprising: contacting the water impurity-containing gaseous hydro...
08/01/1989
4832926Chlorine gas filtering material suitable for use in a chemical oxygen generator and method of making
A chlorine gas filtering material suitable for use in a high temperature oxygen environment, and a method of making the filtering material. The filtering material is prepared by impregnating a porous manganese dioxide and copper oxide hopcalite catalyst p...
05/23/1989
4717500Getter device for frit sealed picture tubes
Getter device containing a barium-aluminum alloy powder and a boron-containing, and chromium-containing nickel base alloy powder....
01/05/1988
4512960Method of gas purification and system therefor
A method and device for conducting gettering. The gettering is conducted with one of an LiB, LiSi or LiAl system. Preferably the LiB system is of the formula Lix B1-x wherein 0
04/23/1985
4451270Absorption process for producing oxygen and nitrogen and solution therefor
Process for the separation and purification of oxygen and nitrogen is disclosed which utilizes solutions of oxygen carriers to selectively absorb oxygen from a gaseous stream, leaving nitrogen as a byproduct. In the process, an oxygen carrier capable of r...
05/29/1984
4444316Gas scavenger agents for containers of solid chloroisocyanurates
Chlorine-containing gases which may be formed in containers of solid chloroisocyanurates such as trichloroisocyanuric acid are adsorbed and decomposed by a gas scavenging agent consisting essentially of silica gel, an alkali metal bicarbonate, and carbon....
04/24/1984
4405487Combination moisture and hydrogen getter
A combination moisture and hydrogen getter comprises (a) a moisture getter comprising a readily oxidizable metal; and (b) a hydrogen getter comprising (i) a solid acetylenic compound and (ii) a hydrogenation catalyst. A method of scavenging moisture from a closed ...
09/20/1983
4385019Production of a polymeric active composition
A process is provided for forming a polymeric material which can be developed into a shaped polymeric structure comprising an active material encradled in a porous, fiber-containing polymeric composition. In the process, the active material is mixed with ...
05/24/1983
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