Storage of materials
First Claim
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1. A composition which is storage stable at 20°
- C. comprising;
i) a carrier substance which is water-soluble or water-swellable and is in a glassy amorpous state;
ii) at least one material to be stored, which is unstable in aqueous solution at room temperature of 20°
C. dissolved in said amorphous carrier substance, said composition existing in a glassy state at 20°
C.
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Abstract
A material or mixture of materials which is not itself storage stable is rendered storage stable by incorporation into a water-soluble or swellable glassy or rubbery composition which can then be stored at ambient temperature. Recovery is by adding aqueous solution to the composition.
213 Citations
16 Claims
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1. A composition which is storage stable at 20°
- C. comprising;
i) a carrier substance which is water-soluble or water-swellable and is in a glassy amorpous state; ii) at least one material to be stored, which is unstable in aqueous solution at room temperature of 20°
C. dissolved in said amorphous carrier substance, said composition existing in a glassy state at 20°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- C. comprising;
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12. A method of rendering a material storage stable at 20°
- C., which material is unstable in aqueous solution at room temperature of 20°
C., comprising dissolving the material in a carrier substance which is water-soluble or water-swellable, or in a solution thereof, so that the material is dissolved in said carrier substance, and forming the resulting mixture into a glassy amorphous state, said mixture existing in said glassy state at 20°
C. - View Dependent Claims (13, 14, 15)
- C., which material is unstable in aqueous solution at room temperature of 20°
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16. In a method of storing a material, which material is unstable in aqueous solution at 20°
- C., the improvement comprising dissolving the material in a carrier substance which is water-soluble or water-swellable, or in a solution thereof, so that the material is dissolved in said carrier substance, forming the resulting mixture into a glassy amorphous state and storing the mixture in said glassy amorphous state without refrigeration for at least one week.
Specification