Desiccant composition
First Claim
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1. A desiccant composition comprising a deliquescent salt and a modified starch, wherein the deliquescent salt comprises at least about 5 to about 95 percent of the composition by weight and the modified starch from about 5 to about 95 percent of the composition.
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Abstract
A desiccant composition containing a deliquescent salt and a modified starch containing from about 5 to about 95 percent of the deliquescent salt and from about 5 to about 95 percent of the modified starch.
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Citations
26 Claims
- 1. A desiccant composition comprising a deliquescent salt and a modified starch, wherein the deliquescent salt comprises at least about 5 to about 95 percent of the composition by weight and the modified starch from about 5 to about 95 percent of the composition.
- 10. A desiccant composition for application under conditions where the relative humidity is less than about 20 percent comprising a deliquescent salt selected from the group consisting of ZnCl2, LiCl, ZnBr2, LiBr, ZnI2, LiI and a modified starch, wherein the deliquescent salt comprises at least about 5 to about 95 percent of the composition and the modified starch comprises from about 5 to about 95 percent of the composition.
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12. A desiccant composition for application under conditions where the relative humidity is greater than about 20 percent, comprising a deliquescent salt selected from the group consisting of Ca(NO3)2*2H2O, NaHSO4, Mg(NO3)*6H2O, KI, NaI, NaNO2, KBr, (NH4)2SO4, Na(C3H3O2)*3H2O, Na2S2O3, NH4Cl, KHSO4, Na2CO3*10H2O, ZnSO4*7H2O, K2HPO4, Na2SO3*7H2O, NaF, K2(CO3)2*2H2O, ZN(NO3)2, NH4H2PO4 and MgCl2 and a modified starch, wherein the deliquescent salt comprises at least about 5 to about 95 percent of the composition and the modified starch comprises from about 5 to about 95 percent of the composition.
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15. A desiccant composition for application under conditions where the relative humidity is greater than about 50 percent, comprising a deliquescent salt selected from the group consisting of calcium chloride, magnesium chloride, potassium chloride and zinc nitrate and a modified starch, wherein the deliquescent salt comprises at least about 5 to about 95 percent of the composition and the modified starch comprises from about 5 to about 95 percent of the composition.
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17. A desiccant container comprising a desiccant composition secured within a water vapor permeable film product, wherein the desiccant composition comprises a deliquescent salt and a modified starch, wherein the deliquescent salt comprises at least about 5 to 95 percent of the composition by weight and the modified starch from about 5 to 95 percent of the composition by weight.
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23. A process for manufacturing a desiccant container comprising
(a) preparing a water vapor permeable film product, (b) preparing a desiccant composition wherein the desiccant composition comprises a deliquescent salt and a modified starch wherein the deliquescent salt comprises at least about 5 to 95 percent of the composition by weight and the starch from about 5 to about 95 percent of the composition by weight, (c) placing the desiccant composition between layers of the water vapor permeable film product, and (d) sealing edges of the water vapor permeable film product around the desiccant composition to produce the desiccant container.
Specification