Cyclohexanetripropionic Acid Pentyl Ester Plasticizers for Lower Gelling
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Solution Overview
Problem
Existing trialkyl esters of 1,2,4-cyclohexanetripropionic acid used as plasticizers do not meet the varying requirements of different applications, necessitating improvements in their properties.
Innovation Solution
Development of trialkyl esters of 1,2,4-cyclohexanetripropionic acid with specific alkyl group compositions, particularly incorporating 55 to 95 mol% n-pentyl groups, and optionally combined with additional plasticizers like epoxidized oils, to enhance thermal stability and mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional trialkyl esters of 1,2,4-cyclohexanetripropionic acid are used as plasticizers, then they provide basic plasticizing function, but they do not meet varying application requirements and have insufficient property improvement
Solution Approach 1:
The patent applies parameter changes by systematically varying the alkyl group composition in the trialkyl ester of 1,2,4-cyclohexanetripropionic acid. Specifically, it controls the molar ratio of n-pentyl groups (55-95 mol%) versus branched pentyl groups (2-methylbutyl and/or 3-methylbutyl) to optimize properties for different applications. This parameter optimization enables the plasticizer to meet varying application requirements while maintaining reliability.
Solution Approach 2:
The patent applies local quality by creating specific molecular structures with particular alkyl group distributions. The trialkyl ester is designed with a specific local composition (55-95 mol% n-pentyl groups) that provides enhanced properties in specific regions or applications, allowing tailored performance for different plasticizing needs while maintaining overall versatility.
2Reliability
If trialkyl esters with specific alkyl group compositions are synthesized, then application-related properties are improved, but manufacturing complexity increases
Solution Approach 1:
The patent addresses manufacturing complexity by establishing clear parameter ranges (55-95 mol% n-pentyl groups) that guide the synthesis process. These defined parameters enable systematic control of the alkyl group composition during manufacturing, making the process more manageable while ensuring the desired application-related properties are achieved.
Solution Approach 2:
The patent applies dynamics by allowing flexible adjustment within the alkyl group composition range (55-95 mol% n-pentyl) depending on specific application requirements. This dynamic adjustment capability enables optimization for different applications while maintaining a manageable manufacturing framework, balancing property improvement with ease of manufacture.
Data Source
AI summary
The present invention relates to trialkyl esters of 1,2,4-cyclohexanetripropionic acid according to formula (1), wherein the three alkyl groups R each have 5 carbon atoms, of which 55 to 95 mol% are n-pentyl groups. A further object is a plasticizer composition comprising the aforementioned trialkyl esters of 1,2,4-cyclohexanetripropionic acid according to formula (1).