Dual Polyesteramine Keratin Composition for Hair Conditioning
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Solution Overview
Problem
Conventional hair care products often result in a sticky or tacky feel due to build-up from conditioning agents, leading to uneven deposition and reduced combing ease, and typically contain undesirable ingredients like silicones, sulfates, and parabens.
Innovation Solution
A composition combining two polyesteramines, such as polyester-11 and polyester-37, in specific ratios, along with additional conditioning agents, to provide improved conditioning and moisturizing benefits without silicones, sulfates, and parabens, ensuring even distribution and enhanced hair texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conditioning agents are used to provide conditioning benefits, then moisturizing and conditioning effects are improved, but the material becomes sticky/tacky and deposits unevenly causing build-up
Solution Approach 1:
The patent changes the molecular weight parameter of the polyesteramine conditioning agent, using a lower average molecular weight (e.g., 500-5000 Da) compared to conventional agents. This parameter change reduces the sticky/tacky feel and build-up while maintaining conditioning benefits, directly resolving the contradiction between reliability of conditioning and harmful stickiness
Solution Approach 2:
The patent uses composite material strategy by combining polyesteramine with specific surfactants and other conditioning agents in defined ratios. This composite approach creates a balanced formulation that provides uniform deposition and conditioning benefits without the excessive stickiness of individual components
2Manufacturing precision
If lower-weight materials are used to avoid build-up, then even deposition is improved, but the material produces a sticky/tacky feel with poor spreadability
Solution Approach 1:
The patent optimizes the molecular weight parameter within a specific range (500-5000 Da) and controls the functional group ratio (carboxylic acid to amine groups) to achieve the right balance between deposition uniformity and spreadability, avoiding both build-up and excessive stickiness
Solution Approach 2:
The patent introduces surfactants as intermediary substances that mediate between the polyesteramine and the hair surface. These surfactants improve spreadability and reduce stickiness while maintaining uniform deposition, acting as a bridge that resolves the contradiction
3Reliability
If conventional conditioning agents are used to achieve conditioning benefits, then moisturizing is improved, but harmful ingredients like silicones, sulfates, and parabens are present
Solution Approach 1:
The patent extracts and removes harmful ingredients (silicones, sulfates, parabens) from the formulation while retaining the essential conditioning function through polyesteramine and natural-derived ingredients. This extraction principle directly addresses the contradiction by eliminating harmful substances while preserving conditioning benefits
Solution Approach 2:
The patent uses biodegradable, naturally-derived ingredients that are environmentally friendly and safe for frequent use, replacing persistent harmful chemicals. This approach allows for regular application without accumulating harmful residues on hair or in the environment
Data Source
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AI summary
A composition, for application to a surface of keratin, including a first polyesteramine, is disclosed. The first polyesteramine is a first conditioning agent present in an amount ranging from 0.1% to 99.9% by weight of the composition. The composition also includes a second polyesteramine. The second polyesteramine is a second conditioning agent present in an amount ranging from 0.1% to 99.9% by weight of the composition.