Ingredients for use in personal care compositions
Inventors
Pereira, Abel • Bishop, Christina • Uzupis, Steven Jez • Edouard, Farahdia • Dexter, Marni • Gunderman, Erik
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-11478416-B2
Publication Date
2022-10-25
Expiration Date
Abstract
A dialkyl amidoamine which is the reaction product of a polyamine, a monocarboxylic acid, or a triglyceride or derivative thereof, and optionally an epoxide-containing compound is described. The dialkyl amidoamine may be used as a conditioning agent or anti-frizz agent useful in personal care applications, particularly in the conditioning of hair. The preparation and use of a conditioning agent and an anti-frizz agent comprising the dialkyl amidoamine are also described.
Core Innovation
The invention provides a conditioning agent comprising a dialkyl amidoamine that is the reaction product of a polyamine selected from diethylene triamine (DETA) and triethylene tetramine (TETA), a monocarboxylic acid selected from isostearic acid, oleic acid, palmitic acid, linoleic acid, or obtained from palm oil, rape seed oil or HEAR (high erucic acid rape) oil, and an epoxide-containing compound selected from ethylene oxide, propylene oxide and glycidol. The dialkyl amidoamine is defined by tertiary amine content >95% as determined using AOCS method Tf 3a-64 and is substantially free from quaternary ammonium compounds.
The conditioning agent is positioned for hair conditioning and includes formulations where the conditioning agent is used as a personal care ingredient. The document also describes delivery forms such as a predispersion or presolution that include the conditioning agent with a dispersing agent and/or a solvent.
In parallel, the invention provides an anti-frizz agent comprising the same class of dialkyl amidoamine reaction products, with the same polyamine selection, monocarboxylic acid selection, and epoxide-containing compound selection, and with the same tertiary amine content constraint (>95% using AOCS method Tf 3a-64). The anti-frizz agent is also defined as substantially free from quaternary ammonium compounds and is described with improved frizz control on hair relative to untreated hair based on wet/dry combing force and frizz control testing.
Claims Coverage
The document includes two independent claims: one directed to a conditioning agent and one directed to an anti-frizz agent. Across both independent claims, the inventive concept is implemented with three composition-defining elements together with a tertiary amine content requirement and a requirement of being substantially free from quaternary ammonium compounds.
Conditioning agent defined by dialkyl amidoamine reaction product composition and tertiary amine content
A conditioning agent comprising at least 50% by weight of a dialkyl amidoamine that is the reaction product of a polyamine selected from diethylene triamine (DETA) and triethylene tetramine (TETA), a monocarboxylic acid selected from isostearic acid, oleic acid, palmitic acid, linoleic acid or obtained from palm oil, rape seed oil or HEAR oil, and an epoxide-containing compound selected from ethylene oxide, propylene oxide and glycidol, wherein tertiary amine content of the dialkyl amidoamine is >95% as determined using AOCS method Tf 3a-64.
Conditioning agent substantially free from quaternary ammonium compounds
The conditioning agent is substantially free from quaternary ammonium compounds.
Anti-frizz agent defined by dialkyl amidoamine reaction product composition and tertiary amine content
An anti-frizz agent comprising a dialkyl amidoamine which is the reaction product of a polyamine selected from diethylene triamine (DETA) and triethylene tetramine (TETA), a monocarboxylic acid selected from isostearic acid, oleic acid, palmitic acid, linoleic acid or obtained from palm oil, rape seed oil or HEAR oil, and an epoxide-containing compound selected from ethylene oxide, propylene oxide and glycidol, wherein tertiary amine content of the dialkyl amidoamine is >95% as determined using AOCS method Tf 3a-64.
Anti-frizz agent substantially free from quaternary ammonium compounds
The anti-frizz agent is substantially free from quaternary ammonium compounds.
Overall, claim coverage centers on dialkyl amidoamine reaction products defined by specific polyamines, monocarboxylic acids, and epoxide-containing compounds, with tertiary amine content >95% by AOCS Tf 3a-64 and substantially no quaternary ammonium compounds. One independent claim specifies the composition as a conditioning agent, and the other specifies the composition as an anti-frizz agent.
Stated Advantages
Improved frizz resistance for treated hair, as indicated by frizz control testing and reported changes in wet/dry combing force.
Documented Applications
Conditioning formulations for hair, including use as a conditioning agent in personal care formulations.
Anti-frizz use for hair, including performance evaluation via frizz control testing and wet/dry combing force comparisons to untreated hair.
Use of the conditioning agent in predispersion or presolution comprising the conditioning agent together with a dispersing agent and/or a solvent.
Interested in licensing this patent?