Polybranched Fatty Acid Composition with Controlled Cyclic Compounds
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Solution Overview
Problem
Commercially available branched fatty acid compositions, such as isostearic acid, have a mixture of linear and branched fatty acids with high cyclic compound content, which affects their low temperature properties and stability, particularly in lubricant and cosmetic applications.
Innovation Solution
A composition comprising at least 30% by weight of polybranched C10-C24 fatty acids or esters and 1-8% by weight of cyclic compounds, achieved through isomerization of linear unsaturated fatty acids using a clay catalyst, resulting in improved low temperature properties and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If commercially available branched fatty acid compositions (isostearic acid) are used, then production is optimized and esters are widely used in lubricant and cosmetic compositions, but the high cyclic compound content adversely affects low temperature properties and stability
Solution Approach 1:
The patent extracts and removes cyclic compounds from the branched fatty acid composition through purification steps. The composition specifies containing only 1-8% cyclic compounds by weight, significantly reduced from conventional isostearic acid which contains high cyclic compound content. This extraction eliminates the adverse effects of cyclic compounds on low temperature properties and stability while maintaining the production efficiency of optimized branched fatty acid synthesis.
2Ease of manufacture
If conventional branched fatty acid compositions with high cyclic compound content are used, then the composition is readily available, but the pour point is higher than -40°C and low temperature properties are degraded
Solution Approach 1:
The patent changes the compositional parameters by strictly limiting cyclic compound content to 1-8% by weight and specifying high polybranched fatty acid content (at least 30%). This parameter change fundamentally alters the physical properties of the composition, achieving a pour point below -40°C and superior low temperature properties while maintaining ease of manufacture through established isomerization processes followed by purification.
3Temperature
If high polybranched fatty acid content is achieved through isomerization, then low temperature properties improve, but cyclic compound content increases which adversely affects stability
Solution Approach 1:
The patent converts the harmful effect of cyclic compounds into a benefit by carefully controlling their content within the optimal range of 1-8% by weight. Rather than completely eliminating cyclic compounds (which would require excessive purification steps), the invention identifies and maintains this specific range where the composition achieves both excellent low temperature properties (pour point < -40°C) and enhanced stability against UV radiation and oxidation. This approach transforms the potential harm into a controlled, beneficial parameter.
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 composition exhibits better low temperature properties, with a pour point less than -40°C and enhanced stability against UV radiation, making it suitable for industrial, personal care, and home care applications.
Implementation Method 1
isomerization of linear unsaturated fatty acids using a clay catalyst
Data Source
AI summary
The present invention relates to a composition of branched fatty acids or esters thereof, the process for preparing such a composition and its use in various industrial fields, such as in lubricant, in cosmetics and in home care. More particularly, the present invention relates to a composition comprising at least 30% by weight of polybranched C10-C24 fatty acids or esters thereof, and a cyclic compound content ranging from 1% to 8% by weight, the weight percentage being given on the total weight of the composition.