Polymeric Glyceryl Esters with Liquid and Solid Domains
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Solution Overview
Problem
Existing formulations in personal care products lack a combination of structured film and flow properties, which are essential for optimal skin feel and performance, as they typically consist of either solid or liquid triglycerides but not both, and lack crosslinking diacids to integrate both domains effectively.
Innovation Solution
A series of polymeric glyceryl esters are created by reacting glycerin with a combination of liquid and solid fatty acids, along with a diacid crosslinker, resulting in a polymer with both liquid and solid domains that are crosslinked, allowing for unique flow properties and skin conditioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If only solid triglycerides are used in formulations, then structured film is provided, but flow properties are insufficient
Solution Approach 1:
The patent combines solid and liquid fatty acid domains within a single triglyceride molecule through interesterification, creating a hybrid structure that simultaneously provides structured film (from solid domains) and flow properties (from liquid domains), resolving the contradiction between these two opposing requirements
Solution Approach 2:
The invention creates composite triglyceride molecules containing both solid and liquid fatty acid chains, forming a material that exhibits properties of both solid and liquid states, thereby achieving both structured film formation and adequate flow characteristics in personal care formulations
2Ease of operation
If only liquid triglycerides are used in formulations, then flow properties are provided, but structured film is insufficient
Solution Approach 1:
The patent merges liquid and solid fatty acid domains within the same triglyceride molecule, creating a dual-domain structure that provides both the flow properties characteristic of liquid triglycerides and the structured film formation capability of solid triglycerides, eliminating the need to choose between the two
3Adaptability or versatility
If mixed fatty acids are used without crosslinking diacids, then liquid and solid domains are present, but the domains are not effectively integrated
Solution Approach 1:
The patent introduces crosslinking diacids as intermediary molecules that bridge and integrate the liquid and solid fatty acid domains within the triglyceride structure, creating a stable, interconnected network that effectively unifies the dual domains and prevents phase separation or structural instability
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 resulting polymeric glyceryl esters provide exceptional skin feel, flowability, and waterproofing properties, enhancing the performance of personal care products by combining the benefits of both liquid and solid fatty groups in a single molecule.
Implementation Method 1
a polyester made by the reaction of a mixture of liquid and solid fatty acids reacted with citric acid and a diacid crosslinker
Implementation Method 2
crosslinked by the diacid
Data Source
AI summary
The present invention is directed to a series of polymeric glyceryl esters that have two different molecular weight ester chains, one solid and one liquid, which when combined into a single molecule make a polymer that is solid, and crosslinked by dimer acid. These products have very unique skin feel and water proofing properties. These materials find applications as additives to formulations in personal care products where there is a desire to have a structured film (provided by the solid fatty group) and flow properties, (provided by the liquid fatty group). These compounds by virtue of their unique structure provide outstanding skin feel.