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US 4,900,542 AGranted
Manufacturing process for microcrystalline emulsions
AssigneeCarter-Wallace, Inc.
InventorsUmberto V. Parrotta, Jr., Gianluigi Soldati, Frederick P. Sisbarro
Life of this patent
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Abstract
A batch process and continuous/semicontinuous processes for the manufacture of uniform, clear, microcrystalline emulsion compositions of gel-like consistency are disclosed.
Claims6
A process for preparing uniform, clear, microcrystalline emulsion antiperspirant compositions of gel-like consistency comprising:
- mixing the antiperspirant active material with water, charging said aqueous phase into an oil-alcohol phase containing a volatile silicone, a silicone emulsifier, a non-volatile emollient and a coupling agent, heating the resultant mixture with agitation until a uniform mixture is obtained, homogenizing said mixture and passing said homogenized mixture to a holding tank or directly to a filter.
Dependencies are inferred from the claim text.