Regio-Specific Glycerin Polyesters with Silicone Terminal Modification

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Solution Overview

Problem

Natural triglycerides lack the desired aesthetics for widespread use in cosmetics, and existing technologies fail to provide polymeric materials with regiospecificity, unique physical properties, and skin penetration due to high molecular weight, as well as the combination of liquid and solid domain groups critical for advanced formulations.

Innovation Solution

The development of regio-specific glycerin-based polymers synthesized through polycondensation polymerization using mono-functional monomers, which allows for controlled placement of alkyl groups, creating high-definition polymers with structured liquid and solid domains, and the incorporation of silicone monomers for enhanced solubility and surface activity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If natural triglycerides are used in cosmetics, then they provide energy storage and basic physical properties, but they lack desired aesthetics and have limited performance variation

Engineering Contradiction:
Improveperformance variationVSAvoidaesthetics deficiency
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The natural triglyceride structure is segmented into modular components (glycerin backbone, fatty acid chains, terminal groups) that can be independently controlled and recombined. This allows systematic variation of physical properties while maintaining the core triglyceride structure, enabling both aesthetic improvement and performance tuning.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the polymer molecule are assigned different functions: the glycerin backbone provides structural framework, internal pendant groups control bulk properties, and terminal groups (particularly silicone modifications) provide surface aesthetics and skin feel. This local differentiation resolves the contradiction between basic function and aesthetic performance.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If polymeric triglyceride mimics are synthesized to improve performance, then unique physical properties and skin feel are achieved, but manufacturing complexity increases

Engineering Contradiction:
Improvephysical properties controlVSAvoidpolymerization process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Mono-functional monomers are selected and prepared in advance with specific fatty acid chains and terminal groups. These pre-designed building blocks contain the desired aesthetic and performance properties built-in, eliminating the need for complex post-polymerization modifications and simplifying the overall manufacturing process while maintaining high property control.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention controls polymer properties by systematically varying parameters such as fatty acid chain length, saturation level, and terminal group composition during polymerization. This parametric control approach allows tuning of melt point, viscosity, and skin feel without changing the fundamental polymerization chemistry, thereby managing complexity.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If regiospecific substitution is implemented to create structured domains, then unique flow behaviors and skin feels are achieved, but manufacturing precision requirements increase

Engineering Contradiction:
Improveflow behavior controlVSAvoidsubstitution pattern control
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The polymer structure is designed with distinct regional functions: internal pendant groups form solid/liquid domains that control bulk flow behavior, while terminal silicone groups provide surface aesthetics. This spatial separation of functions achieves regiospecificity through the polymerization mechanism itself rather than requiring precise post-synthesis control.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention creates composite molecular structures combining organic triglyceride components with inorganic silicone terminal groups. This composite approach allows each component to contribute its inherent properties (organic portion for flow behavior, silicone for surface feel) without requiring complex interactions, thereby reducing manufacturing precision requirements while achieving unique overall performance.

Inventive Principle:
Principle #40Composite materials

4Adaptability or versatility

If high molecular weight polymers are used to achieve regiospecificity, then unique physical properties are obtained, but skin penetration is reduced

Engineering Contradiction:
Improvephysical property uniquenessVSAvoidskin penetration
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The polymer design creates a gradient of molecular dimensions: the core polymer chains maintain high molecular weight for unique bulk physical properties, while terminal silicone groups provide low molecular weight surface functionality that enhances skin interaction and penetration. This local dimensional differentiation resolves the contradiction between bulk property uniqueness and surface accessibility.

Inventive Principle:
Principle #3Local quality

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

These polymers offer unique skin feels and physical properties, including controlled melt points, crystallinity, and solubility, providing superior aesthetics and performance in cosmetic applications.

Implementation Method 1

polycondensation polymerization using mono-functional monomers, which allows for controlled placement of alkyl groups

Methodology Applied
Scientific EffectPolycondensation polymerization: Chemical Bonding

Implementation Method 2

This polymer will has 'compartments' of solid and liquid pendant group domains if the proper pendant groups are chosen

Methodology Applied
Scientific EffectPhase separation: Phase Change

Implementation Method 3

the incorporation of silicone monomers for enhanced solubility and surface activity

Methodology Applied
Scientific EffectSolubility enhancement: Solvation

Data Source

PatentUS8808676B1Glycerin polyesters with terminal silicone modification
Publication Date: 2014.08.19 SURFATECH
  • US8808676B1 patent drawing
  • US8808676B1 patent drawing
  • US8808676B1 patent drawing

AI summary

The present invention is aimed at a series of novel glycerin polyesters that provide desired aesthetics and structure in cosmetic formulation. These glycerin polymers are synthesized by polycondensation polymerization, in the presence of a monofunctional monomer or terminal group. By carefully choosing the groups the properties can be dramatically altered. The mono-functional alcohols, being only able to react in one position, can only be located on the polymer chain ends. This provides very unique polymer structure and morphology. These regiospecific polyesters will have very unique physical properties and have a wide variety of solubilities. Furthermore, by the incorporation of a co-monomer will produce a copolymer with drastically different solubilities and aesthetics.