Furan Dicarboxylic Acid Plasticizer for Halogen Resins
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Solution Overview
Problem
Conventional plasticizers for halogen-based resins, such as vinyl chloride-based resins, face issues with compatibility, heat resistance, and cold resistance, particularly when compared to phthalate-based plasticizers, and often require the use of unsaturated alcohols which have not been adequately studied.
Innovation Solution
A plasticizer obtained through an esterification reaction between a furan dicarboxylic acid compound and an aliphatic alcohol containing both saturated and unsaturated components, with the unsaturated component not exceeding 25% by mass, enhancing compatibility, heat resistance, and cold resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If non-phthalate-based plasticizers (ATBC, DOA, TOTM) are used to replace phthalate-based plasticizers, then environmental safety is improved, but performance (heat resistance, compatibility, plasticization efficiency) deteriorates
Solution Approach 1:
The patent changes the chemical structure parameters of the plasticizer by using furan dicarboxylic acid esters with specific carbon chain lengths (C12-C22) and specific structural configurations. This structural parameter change enables the plasticizer to achieve both environmental safety (non-phthalate) and high performance (heat resistance, compatibility, plasticization efficiency) simultaneously
Solution Approach 2:
The patent employs a composite approach by combining the furan dicarboxylic acid ester structure with long-chain aliphatic alcohol groups (C12-C22). This composite molecular structure integrates the environmental benefits of non-phthalate esters with the performance characteristics of long-chain esters, achieving both ecological safety and functional performance
2Object-affected harmful factors
If cyclohexane dicarboxylic acid esters (DINCH) or terephthalate esters (DOTP) are used as non-phthalate plasticizers, then environmental safety is improved, but compatibility with vinyl chloride-based resin deteriorates
Solution Approach 1:
The patent modifies the structural parameters by selecting furan dicarboxylic acid esters with specific aliphatic alcohol chains (C12-C22). This structural parameter optimization improves compatibility with vinyl chloride-based resin while maintaining environmental safety, overcoming the limitations of DINCH and DOTP
3Temperature
If saturated alcohols only are used in furan dicarboxylic acid esters, then heat resistance is improved, but compatibility and processability deteriorate
Solution Approach 1:
The patent applies local quality by introducing a small proportion (1-25 mass%) of unsaturated alcohol components into the predominantly saturated alcohol structure. This localized introduction of unsaturation improves compatibility and processability while the majority saturated structure maintains heat resistance
Solution Approach 2:
The patent optimizes the compositional parameters by controlling the unsaturated alcohol content within 1-25 mass%. This parameter control achieves the right balance between heat resistance (maintained by saturated components) and compatibility/processability (improved by unsaturated components)
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 proposed plasticizer achieves plasticization performance comparable to or exceeding that of phthalate-based plasticizers, while improving compatibility, heat resistance, and cold resistance in halogen-based resin compositions.
Implementation Method 1
a condensate obtainable by an esterification reaction between a furan dicarboxylic acid compound and an aliphatic alcohol (A)
Data Source
AI summary
The present invention relates to [1] a plasticizer for a halogen-based resin including a condensate obtainable by an esterification reaction between a furan dicarboxylic acid compound and an aliphatic alcohol having 4 to 22 carbon atoms, in which the aliphatic alcohol includes a saturated aliphatic alcohol and an unsaturated aliphatic alcohol, and a content of the unsaturated aliphatic alcohol in the aliphatic alcohol is not more than 25% by mass; and [2] a halogen-based resin composition including the aforementioned plasticizer. The plasticizer has a plasticization performance for a halogen-based resin at a level identical to or higher than that of a phthalate-based plasticizer, and exhibits excellent effects of improving compatibility, heat resistance and cold resistance.