CO5040210A1 - THERMAL CELL CONTAINING A SUPERIOR LEAF PERMEABLE TO OXYGEN AND A METHOD TO MAKE A GAS PERMEABLE MATERIAL - Google Patents
THERMAL CELL CONTAINING A SUPERIOR LEAF PERMEABLE TO OXYGEN AND A METHOD TO MAKE A GAS PERMEABLE MATERIALInfo
- Publication number
- CO5040210A1 CO5040210A1 CO98040883A CO98040883A CO5040210A1 CO 5040210 A1 CO5040210 A1 CO 5040210A1 CO 98040883 A CO98040883 A CO 98040883A CO 98040883 A CO98040883 A CO 98040883A CO 5040210 A1 CO5040210 A1 CO 5040210A1
- Authority
- CO
- Colombia
- Prior art keywords
- oxygen
- diffusive
- day
- porous substrate
- Prior art date
Links
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- Packages (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
La presente invención se relaciona con una celda térmica quecomprende: a) una hoja inferior formada para tener un bolsillo, dicha hoja inferior es impermeable al oxígeno; b) una pluralidad de partículas colocadas en dicho bolsillo, dicha pluralidad de partículas reaccionan exotérmicamente cuando son expuestas al oxígeno; y c) una hoja superior sellada a dicha hoja inferior en un reborde de dicho bolsillo para encerrar dicha pluralidad de partículas de tal forma que dichas partículas no pueden salir de dicho bolsillo, dicha hoja superior tiene un sustrato poroso, dicho sustrato está revestido con una configuración de puntos hechas de un material impermeable al oxígeno, dicho material impermeable al oxígeno cubre de manera uniforme más de 95% de la superficie de dicho sustrato poroso de tal forma que dicha hoja superior tiene una permeabilidad al oxígeno difusivo a una fuerza de impulsión atmosférica difusiva de 0.21 que oscila entre 0,5 x 105 cm3 /645.18 cm2 /día hasta 2 x 105 cm3 /645.18 cm2 /día. Y un método para hacer un material permeable al gas que tiene una permeabilidad al gas difusivo a una fuerza de impulsión atmosférica difusiva de 0.21 que oscila entre 0,5 x 105 cm3 /645.18 cm2 /día hasta 2 x 105 cm3 /645.18 cm2 /día, dicho método comprende los pasos de: a) revestir una configuración de puntos de un material impermeable al gas sobre un sustrato poroso; b) agrandar dicha configuración de puntos para cubrir más de 95% de dicho sustrato poroso de tal forma que dicha permeabilidad al gas ocurra únicamente a través de orificios entre dicha configuración de puntos.The present invention relates to a thermal cell comprising: a) a lower sheet formed to have a pocket, said lower sheet is impermeable to oxygen; b) a plurality of particles placed in said pocket, said plurality of particles react exothermically when exposed to oxygen; and c) an upper sheet sealed to said lower sheet on a flange of said pocket to enclose said plurality of particles such that said particles cannot leave said pocket, said upper sheet has a porous substrate, said substrate is coated with a configuration of points made of an oxygen impermeable material, said oxygen impermeable material uniformly covers more than 95% of the surface of said porous substrate such that said upper sheet has a diffusive oxygen permeability to a diffusive atmospheric driving force from 0.21 ranging from 0.5 x 105 cm3 / 645.18 cm2 / day to 2 x 105 cm3 /645.18 cm2 / day. And a method for making a gas permeable material that has a diffusive gas permeability at a diffusive atmospheric force of 0.21 ranging from 0.5 x 105 cm3 / 645.18 cm2 / day to 2 x 105 cm3 /645.18 cm2 / day , said method comprises the steps of: a) coating a point configuration of a gas impermeable material on a porous substrate; b) enlarge said point configuration to cover more than 95% of said porous substrate so that said gas permeability occurs only through holes between said point configuration.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US89681494A | 1994-07-18 | 1994-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CO5040210A1 true CO5040210A1 (en) | 2001-05-29 |
Family
ID=40943257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CO98040883A CO5040210A1 (en) | 1994-07-18 | 1998-07-17 | THERMAL CELL CONTAINING A SUPERIOR LEAF PERMEABLE TO OXYGEN AND A METHOD TO MAKE A GAS PERMEABLE MATERIAL |
Country Status (1)
| Country | Link |
|---|---|
| CO (1) | CO5040210A1 (en) |
-
1998
- 1998-07-17 CO CO98040883A patent/CO5040210A1/en unknown
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