Method of preparing carrier liquids
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United States of America Patent
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Aug 1, 2017
Issued Date -
N/A
app pub date -
Aug 20, 2012
filing date -
Aug 31, 2011
priority date (Note) -
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Abstract
The invention provides a method for the preparation of a carrier liquid which comprises the steps of: (I) preparing a single phase solution comprising: (a) a solvent or a mixture of miscible solvents, (b) a liquid carrier material, which is soluble in solvent (a), and (c) a dopant material which is also soluble in solvent (a); (II) cooling (preferably freezing) the single phase solution produced in step (I) to a temperature at which at least both the solvent (a) and carrier material (b) become solid; and (III) removing solid solvent (a) from the cooled (frozen) single phase solution in vapor form, such that the remaining cooled (frozen) carrier material (b) and dopant material (c) are returned to ambient temperature thus providing a product of liquid carrier material (b) having dopant material (c) dispersed therein.
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International Classification(s)
- A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
- A01N:PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLA....
- B82Y:SPECIFIC USES OR APPLICATIONS OF NANO-STRUCTURES; ....
- A23L:FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT....
- A61Q:USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
- B01F:MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
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