Patent Picks—Pumice Capillary Treatment, Protein-fixing Agents and More for Hair

By: Rachel L. Grabenhofer

Posted: May 2, 2012

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Hair-mending compositions and associated methods
WIPO Patent Application WO/2012/054243
Publication date: April 26, 2012
Assignee: Alberto-Culver Company, M Wright, M Szerszen, J Cohen, D Petroski, D Eagan, C Felski and GM Verboom

This invention relates to hair-mending compositions containing a polyelectrolyte complex (PEC). Also disclosed are methods of their use, manufacture, efficacy testing and related marketing. According to the patent, it was desirable to formulate a stable hair care composition including intact PECs in combination with other hair benefit agents, especially those that are charged, and to develop test methods that can effectively communicate the split-end mending results to consumers. The present invention provides these advantages.

Cosmetic composition based on MQ-type resins and T-propyl resin for improved gloss and staying power
US Patent Application 20120100089
Publication date: April 26, 2012
Assignee: L'Oréal

This invention relates to a cosmetic composition intended for horny tissues, especially the lips, skin, hair and nails comprising at least one siloxane resin and at least one film-forming polymer. One objective was to provide compositions that easily deposit a completely non-transferred film, which not be too thick and/or tacky during application and wear, and good impart level of gloss.

According to the patent, individuals skilled in the art know to use polymers to obtain these properties of staying power; however, such polymers have different chemical natures and are conveyed either in a fatty or aqueous phase. Although these polymers effectively impart properties of staying power, especially of non-transfer, they are most often accompanied by discomfort either during application, i.e., difficult spreading, sticking, etc., or in the course of the day, i.e., tugging, mask effect, etc. This invention therefore provides a technical solution with good staying power and that is comfortable to use, based on: an MQ-type resin of the formula M_0.43Q_0.57 and of M_n= 3,230 dissolved in xylene with 70.8% by weight of solids; and T-propyl resin, a propyl silsesquioxane resin, at 74.8% by weight in toluene.