Allergen absorbent and blocking gel

Details Allergen absorbent and blocking gel Allergen absorbent and blocking gel

A - Human Necessities

61

K

167/119, 167/159

A61K 8/49 (2006.01) A61K 8/25 (2006.01)

Patent

CA 1289073

AN ALLERGEN ABSORBENT AND BLOCKING GEL ABSTRACT OF THE DISCLOSURE An allergen absorbent and blocking gel for topical application to the skin comprises an organophilic clay of the smectite type and a quaternary ammonium compound, having aryl or alkyl groups in the range of from 10 to 22 carbon atoms and a vehicle comprising long-chain hydrocarbon or volatile silicone. The material can be made in the form of a stick, a salve or an aerosol spray. It is essential that the organophilic clay gel be highly activated. This is accomplished by high-shear mixing and/or by the use of a low molecular weight polar organic dispersant, such as propylene carbonate. This can also be accomplished using self-activating and self-dispersing clays which do not require high shear or polar activators. Application of the resulting highly-activated gel to the skin results in a blocking effect by means of the clay platelets and an absorption and retention of the urushiol oil allergen in the active tallow tails of the alkyl groups of the quaternary ammonium compound which has been ion exchanged with the clay.

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