Patent Picks—Adjustable Conditioning, Antibacterial Hair Removal, NIR Hair Growth and More

Patent Picks are compiled by the editors from publicly available sources. This edition features the latest inventions related to hair care, including adjustable conditioning, improved dyeing, infrared growth, antibacterial removal and more.

Nonionic surfactant, cationic surfactant, liquid fatty ester and silicone for adjustable hair conditioning
WIPO Patent Application WO/2014/091125
Publication date: June 19, 2014
Assignee: L'Oréal

The disclosed cosmetic composition in this patent concerns the association of alkylpolyglycoside-type, nonionic surfactant; cationic surfactant; liquid fatty ester; and quaternary ammonium-group silicone. According to the inventors, this invention addresses a need for treatments adapted to the mixed nature of hair, i.e., to provide nutrition on the lengths and ends of hair, but a fresh, non-greasy and volumized root. Here, the inventors note particularly remarkable improvement in the lightness and volume of the hair, as well as detangling, smoothing and brilliance.

Silicone hair care containing sugar structures and other silicones
WIPO Patent Application WO/2014/090522
Publication date: June 19, 2014
Assignee: Henkel Ag & Co.

In modern hair care, products are often applied in the form of foam, which is intended to be creamy and fine while at the same time stable and having a certain volume. These requirements can only be achieved hitherto with high amounts of surfactants and/or propellant gases. In addition, environmental influences and oxidative hair treatments deteriorate the dry and wet combability of hair. Furthermore, the gloss and the moisture balance are adversely affected. Another consequence of repeated treatments with surfactant and/or oxidative agents is the strong greasing of keratin fibers and a tendency to increase dandruff formation. The present invention relates to hair treatment compositions containing alkoxylated silicones and/or dimethicones and/or cyclomethicones and/or dimethiconols and/or amino-functional silicones and silicones containing sugar structures, which are designed to address these disadvantages.

Pearlescent hair care composition
WIPO Patent Application WO/2014/090519
Publication date: June 19, 2014
Assignee: OTC GMBH

According to this patent, a current drawback of standard pearly-luster compositions for hair is that their effects usually are strictly a function of the presence of supra-molecular structures. And, as a rule,  mechanical forces such as those generated in the course of application via pumping or spraying, or heat, destroy such structures, resulting in a reduced pearly-luster effects. The present invention therefore relates to a pumpable or sprayable pearly luster hair care composition with high humectant content and heat stability, as well as its use.

Substituted quinones or analogs as coloring agents
WIPO Patent Application WO/2014/090364
Publication date: June 19, 2014
Assignee: Merck Patent GmbH

This invention relates to protein-adhesive coloring agents, their production and preparations containing them, along with a method for coloring keratin fibers, particularly human hair. According to the inventors, there remains a need for skin-compatible dyes that have good adhesion and/or binding abilities. Accordingly, it has been found that given compounds (described in the patent, detailed in German) are suitable as protein-adhesive dyes. The term protein-adhesive dye is understood to mean a dye that binds to a protein-containing matrix from at least one adhesion. Preferred matrices are in this case the skin, hair and/or nails.

Reducing autoxidation agents for oxidative dyeing and/or bleaching of keratin fibers
WIPO Patent Application WO/2014/090784
Publication Date: June 19, 2014
Assignee: Henkel Ag & Co.

This invention relates to an agent for the oxidative dyeing and/or bleaching of keratin fibers, in particular human hair. The disclosed composition includes, in a cosmetic carrier: a) at least a first alkyl glucoside of a given formula; b) at least a second alkyl glucoside of a given formula; c) at least one oxidation dye precursor of the developer type, and d) at least one oxidation dye precursor of the coupler type.

PVOH copolymers for hair removal
WIPO Patent Application WO/2014/093509
Publication date: June 19, 2014
Assignee: Sekisui Specialty Chemicals America, LLC

Described in this patent are epilatory compositions, which may be formed from: 40% to 80% w/w water; 5% to 30% w/w of a mixture of at least one polyvinyl alcohol and at least one polyvinyl alcohol copolymer; 1% to 15% w/w plasticizer, where the plasticizer is a linear or branched composition having from 3% to 15% w/w OH; and up to 40% w/w of one or more additives. Pore strips, keratonic plug removal, and other cosmetic applications may be formed from this composition.

Antibacterial hair removal composition
WIPO Patent Application WO/2014/092845
Publication date: June 19, 2014
Assignee: NJ Fusco

Described herein is an antibacterial, non-aqueous liquid hair removing composition that includes a solubilizing oil effective for solubilizing ingredients, e.g., mineral oil; and an effective antibacterial amount of an antibacterial agent, e.g., triclosan and/or benzethonium chloride. The composition further includes botanical oils and rosins, e.g., soybean oil, gum rosin, rosin esters and titanium dioxide. The composition may also include fragrances and additional bacteriocides, e.g., phenoxyethanol. The composition is applied to a person's skin, and after a sufficient amount time, removed from the skin with hair entrapped therein.

Cosmetics with near infrared (NIR) light-emitting material for hair, skin rejuvenation
WIPO Patent Application WO/2014/093078
Publication date: June 19, 2014
Assignee: ELC Management LLC

Disclosed in this patent are cosmetic or dermatological compositions and substrates containing an NIR light-emitting material, and methods for stimulating healing and/or regenerative properties in the skin, hair and/or scalp. According to the inventors, low level laser therapy (LLLT) stimulates neocollagenesis, tightens collagen fibers, and stimulates the production of elastin, all of which are said to be beneficial for improving the appearance of skin texture or topography, including reducing the appearance of dilated pores and wrinkles, while being minimally invasive. Additionally, LED devices have been used to apply NIR light to stimulate the growth phase of hair follicles that have become dormant, as well as reduce dandruff-causing seborrhoeic inflammation.

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