Olefinic Compounds for Keratin Covalent Bonding
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Solution Overview
Problem
Existing keratin treatment compositions fail to provide long-lasting and durable improvements in hair texture, body, shine, and strength due to inefficiencies in bonding mechanisms, such as internal disulfide bond formation and susceptibility to water and ionic materials, leading to temporary and reduced conditioning benefits.
Innovation Solution
A composition comprising up to 60% olefinic compounds with unactivated double bonds, including fatty acid esters, unsaturated fatty acid amides, and quaternized unsaturated fatty acid amides, which are applied during keratin treatments like bleaching, coloring, or perming, forming covalent bonds without using Michael acceptors, thereby enhancing keratin health and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If traditional conditioning agents are applied to keratins, then softness and shine are improved temporarily, but the effects are short-lived and wash out easily
Solution Approach 1:
The patent applies olefinic compounds to keratins before chemical treatments (bleaching, coloring, perming) to pre-establish a protective network. This preliminary action allows the composition to bond with keratin thiols in advance, creating a durable framework that withstands subsequent chemical damage and washing, thus extending the duration of conditioning effects beyond what traditional post-treatment conditioners can achieve.
2Reliability
If maleic acid-based conditioning agents are used, then thiol-reactive bonding is achieved, but the ionic bonds are susceptible to water and break easily
Solution Approach 1:
The patent changes the chemical parameters of the bonding mechanism by using olefinic compounds with unactivated double bonds instead of activated Michael acceptors like maleic acid. This parameter change transforms the bonding from ionic salt bridges (which are water-susceptible) to stable covalent bonds formed through radical addition, making the conditioning effect resistant to water and ionic materials while maintaining reliable thiol-reactive bonding.
3Reliability
If hydrophobic conditioning compounds with reactive thiol groups are used, then covalent bonding to keratin is achieved, but internal disulfide bond formation reduces efficiency
Solution Approach 1:
The patent extracts the problematic disulfide bond formation mechanism from the system by using olefinic compounds with isolated unactivated double bonds that do not contain thiol groups. This eliminates the possibility of internal disulfide bond formation while maintaining the ability to form covalent bonds with keratin thiols through radical addition, thereby maximizing the efficiency of thiol reaction and bonding productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides immediate and lasting improvements in hair texture, body, shine, and strength, with benefits like improved elasticity, manageability, and protection against chemical treatments, maintaining effects through at least ten shampoos and reducing frizz and damage.
Implementation Method 1
The olefinic compounds may react with free thiols on the keratin structure through a radical addition mechanism to form a covalent bond
Implementation Method 2
chemical oxidative treatments, such as, but not limited to, keratin bleaching, keratin coloring and/or keratin perming
Data Source
AI summary
The present invention relates in general to keratin treatment compositions and methods, and more specifically, compositions comprising up to 60% olefinic compounds and at least one unactivated double bond, the composition comprising fatty acid esters of polyhydric alcohols. The present invention is configured to be easily incorporated into bleaching processes, coloring processes, perming processes, shampoos, conditioners and/or styling products. The purpose of the invention is to provide a composition and method that will improve the overall health of keratins, in particular, texture, body, shine and strength.