Saccharide Siloxane Copolymer Aqueous Stability

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Solution Overview

Problem

Saccharide siloxanes used in hair, skin, and other substrates suffer from performance and functionality losses, especially in aqueous environments, limiting their effectiveness.

Innovation Solution

A saccharide siloxane copolymer with a specific molecular structure that includes a saccharide component bonded to the siloxane backbone in terminal or pendant groups, enhancing stability in aqueous environments and improving performance in personal care compositions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If saccharide siloxanes are used in personal care compositions, then conditioning and performance benefits are achieved, but stability in aqueous environments deteriorates

Engineering Contradiction:

Improvestability in aqueous environmentsVSAvoidperformance and functionality

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent changes the chemical parameters of the saccharide siloxane by modifying the bonding configuration to place saccharide components exclusively in pendant groups rather than terminal positions. This structural parameter change enhances aqueous stability while preserving conditioning performance, resolving the contradiction between stability and functionality in personal care compositions.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite molecular structure combining siloxane backbone with pendant saccharide components, where the siloxane provides stability and the saccharide provides conditioning benefits. This composite approach allows both functions to coexist without the performance loss seen in conventional terminal-linked saccharide siloxanes in aqueous environments.

Inventive Principle:

Principle #40Composite materials

2Reliability

If saccharide components are bonded at terminal positions, then functionality is improved, but aqueous stability deteriorates

Engineering Contradiction:

Improveaqueous stabilityVSAvoidfunctionality

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent segments the saccharide component placement from the terminal positions and relocates it exclusively to pendant groups along the siloxane backbone. This spatial segmentation isolates the saccharide functionality in a configuration that resists aqueous degradation while maintaining the desired conditioning effects on hair and skin substrates.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention applies local quality by creating a non-uniform distribution of saccharide components exclusively at pendant positions rather than terminal positions. This localized structural modification at specific sites along the polymer chain provides enhanced aqueous stability while preserving the local conditioning functionality where needed.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP2609138B1Saccharide siloxanes stable in aqueous environments and methods for the preparation and use of such saccharide siloxanes

Publication Date: 2017.05.17 DOW SILICONES CORP

AI summary

A novel saccharide siloxane copolymer has improved stability in the presence of water as compared to certain previously known saccharide siloxanes. The saccharide siloxane copolymer is useful in personal care compositions.