Patent Picks—Antimicrobials, Cleansers, Fragrance/Malodor and Delivery

By: Rachel L. Grabenhofer

Posted: December 8, 2010

page 2 of 6

This patent discloses a process for the production of a stabilized ceramide emulsion by adding one or more ceramides to one or more sphingosines, then adding an acidic compound and water to form one or more sphingosine salts wherein the sphingosine salts emulsify the ceramides to form the emulsion. The ceramide emulsion is excellent in improving rough skin and barrier properties. In addition, it exhibits a good safety profile storage stability. The patent further notes the inventors have found that emulsification of ceramides with sphingosines and a specific acid makes it possible to maintain ceramides without crystallization.

Personal care composition comprising a cationic active
US Patent Application 20100305169
Publication date: Dec. 2, 2010
Inventors: LR Robinson (Loveland, OH, USA), GR Kelm (Cincinnati, OH, USA) and DM Faulk (Hyde Park, OH, USA)

This patent discloses a personal care composition in the form of an o/w emulsion comprising: a water phase, an oil phase, an anionic pairing agent, a cationic active, and an anionic thickener. In one embodiment, the anionic pairing agent is pre-formed from the neutralization of an acid with a base. In another embodiment, the anionic pairing agent is formed in situ from the neutralization of an acid with a base. At least 25% by weight of the cationic active is present in the oil phase.

According to the patent, the personal care composition allows for previously unattainable levels of the cationic active to locate within the oil phase of the emulsion. In addition, it provides enhanced deliverability of the cationic active to keratinous tissue via the ion-pairing of an anionic pairing agent with the cationic active.

Skin cleansing compositions
US Patent Application 20100305015
Publication date: Dec. 2, 2010
Assignee: Innovation Deli Limited (Lincolnshire, Great Britain)