초록 ▼

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 and the oxygen removal reduces the

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 and the oxygen removal reduces the chances for a hydrogen explosion once free oxygen is essentially removed. The present invention describes a getter incorporating a polyacrylate compound that can absorb up to 500% of its own weight in liquid water without significantly affecting its hydrogen gettering/recombination properties, but that also is insensitive to water vapor.

대표청구항 ▼

What is claimed is: 1. A hydrogen getter composition for removing hydrogen and liquid water formed as the result of a hydrogen/oxygen catalysis, comprising: an organic polymer having unsaturated carbon-carbon bonds; a hydrogenation catalyst distributed throughout said getter composition wherein sa

What is claimed is: 1. A hydrogen getter composition for removing hydrogen and liquid water formed as the result of a hydrogen/oxygen catalysis, comprising: an organic polymer having unsaturated carbon-carbon bonds; a hydrogenation catalyst distributed throughout said getter composition wherein said hydrogenation catalyst is in reactive association with said unsaturated carbon-carbon bonds; and a liquid water absorbing polyacrylate distributed throughout said getter composition, for absorbing liquid water. 2. The hydrogen getter composition of claim 1, wherein the organic polymer is selected from the group consisting of polybutadiene, polyisoprene, polybutadiene/polystyrene copolymer, and the cured or crosslinked versions thereof and combinations thereof. 3. The hydrogen getter composition of claim 2, wherein said organic polymer comprises a plurality of repeating monomer units, said units having up to six side branches, said side branches further comprising C1-C8 alkyl that contain or are substituted with one or more functionalities selected from the group consisting of C2-C8 alkene, C2-C8 alkyne, C 1-C8 ether, C1-C8 alcohol, C1-C8 ester, phenyl, C1-C10 anhydride, C1-C8 isocyanate, C1-C8 ketone, C1-C 8 epoxide, and C1-C8 carboxylic acid, such that each said monomer unit contains at least one carbon-carbon double bond. 4. The hydrogen getter composition of claim 1, wherein said hydrogenation catalyst comprises: a noble metal catalyst for catalyzing a reaction between the unsaturated carbon-carbon bonds of the organic polymer and hydrogen, and a catalyst support material. 5. The hydrogen getter composition of claim 4, wherein said hydrogenation catalyst is selected from the group consisting of palladium, platinum, rhodium, and combinations thereof. 6. The hydrogen getter composition of claim 4, wherein said catalyst support material comprises a porous, inert solid. 7. The hydrogen getter composition of claim 6, wherein the porous, inert solid is carbon black, aluminum oxide or barium carbonate and combinations thereof. 8. The hydrogen getter composition of claim 4, wherein the concentration of said hydrogenation catalyst has a concentration in said hydrogen getter composition of about 5 weight percent to about 75 weight percent of the weight of said hydrogen getter composition, and wherein said hydrogenation catalyst contains a noble metal catalyst having a concentration of about 0.1 weight percent to about 10 weight percent of the weight of the hydrogenation catalyst. 9. The hydrogen getter composition of claim 1, further including inert additives. 10. The hydrogen getter composition of claim 9, wherein the inert additives are selected from the group consisting of carbon black powder, ceramic oxides, mineral powders, salts and thixotropic agents and combinations thereof. 11. A hydrogen getter composition for removing hydrogen from within an enclosed space, comprising: an organic polymer, said organic polymer further comprising a plurality of repeating monomer units, said units having up to six side branches, said side branches further comprising C1-C8 alkyl that contain or are substituted with one or more functionalities selected from the group consisting of C2-C8 alkene, C2-C8 alkyne, C1-C8 ether, C1-C8 alcohol, C1-C8 ester, phenyl, C1-C10 anhydride, C1-C8 isocyanate, C1-C8 ketone, C1-C8 epoxide, and C1-C 8 carboxylic acid such that each said unit contains at least one carbon-carbon double bond; a hydrogenation catalyst consisting essentially of a noble metal catalyst and an inert catalyst support material, said hydrogenation catalyst distributed throughout said hydrogen getter composition wherein said double bonds and said noble metal catalyst are in reactive association; an inert diluent, said diluent selected from the list consisting of carbon black powders, mineral powders, salts, thixotropic agents and combinations thereof; and a liquid water absorbing polyacrylate distributed throughout said hydrogen getter composition. 12. The hydrogen getter composition of claim 11, wherein the noble metal catalyst is palladium or platinum. 13. The hydrogen getter composition of claim 11, wherein the concentration of said hydrogenation catalyst in said getter composition is from about 5 to about 75 weight percent hydrogenation catalyst, and wherein the hydrogenation catalyst contains about 0.1 to 10 weight percent of the noble metal catalyst, based on the weight of the hydrogenation catalyst. 14. The hydrogen getter composition of claim 11, wherein the concentration of said inert diluent is less than about 95 weight percent of said getter composition. 15. A hydrogen getter composition, comprising: at least one of a polymeric compound consisting of units described as: wherein: R1,-R6 may be the same or different and comprise hydrogen, or C1-C8 alkyl that contain or are substituted with one or more functionalities selected from the group consisting of hydrogen, C2-C8 alkene, C2-C 8 alkyne, C1-C8 ether, C1-C8 alcohol, C1-C8 ester, phenyl, C1-C10 anhydride, C1-C8 isocyanate, C1-C8 ketone, C1-C8 epoxide, and C1-C8 carboxylic acid, wherein at least one of R1-R4 contain at least one carbon-carbon double bond, and wherein the functionalities may be partially reacted together, thereby crosslinking some or all of the polymer compound of formula (I) or formula (II); P1-P4 are terminal groups selected from the group consisting of hydrogen or C1-C8 alkyl that contain or are substituted with one or more functionalities selected from the group consisting of hydrogen, C2-C8 alkene, C 2-C8 alkyne, C1-C8 ether, C1-C8 alcohol, C1-C8 ester, phenyl, C1-C10 anhydride, C1-C8 isocyanate, C1-C8 ketone, C1-C8 epoxide, and C1-C 8 carboxylic acid; and n is from 5-10000; a hydrogenation catalyst consisting essentially of a noble metal catalyst and an inert catalyst support material, said hydrogenation catalyst distributed throughout said hydrogen getter composition wherein said double bonds and said noble metal catalyst are in reactive association; an inert diluent, said diluent selected from the list consisting of carbon black powders, mineral powders, salts, thixotropic agents and combinations thereof; and a liquid water absorbing polyacrylate distributed throughout said hydrogen getter composition. 16. The hydrogen getter composition of claim 15, comprising both said polymeric compounds described by said formula (I) and said formula (II). 17. The hydrogen getter composition of claim 16, wherein the noble metal catalyst is palladium or platinum. 18. The hydrogen getter composition of claim 16, wherein the concentration of said hydrogenation catalyst in said getter composition is from about 5 to about 75 weight percent hydrogenation catalyst, and wherein the hydrogenation catalyst contains about 0.1 to about 10 weight percent of the noble metal catalyst, based on the weight of the hydrogenation catalyst. 19. The hydrogen getter composition of claim 16, wherein the concentration of said inert diluent is less than about 95 weight percent of said getter composition.