Biobased Phenol and 4-Hydroxybenzoic Acid Composition for Polymerizability
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Solution Overview
Problem
Existing aromatic compound compositions derived from biomass face challenges in balancing environmental compatibility and color tone or polymerizability, particularly in phenol and 4-hydroxybenzoic acid compositions used for polymerization, leading to suboptimal performance in polymers.
Innovation Solution
The compositions are formulated to achieve a biobased content of 80-100% from biomass resources, with specific absorbance values at 425 nm and controlled shikimic acid content to enhance environmental compatibility and color tone, using transformants like HBA-2 and HBA-47 for phenol, and HBA-2 and HBA-47 for 4-hydroxybenzoic acid, respectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If phenol is produced from biomass using biological methods, then environmental compatibility is improved, but color tone and polymerizability of the resulting polymer are deteriorated
Solution Approach 1:
The patent applies parameter changes by controlling the absorbance of the phenol composition at 425 nm within a specific range (0.003 to 0.200) and limiting shikimic acid content to 0.003% or less. These parameter specifications optimize both the environmental compatibility (through biomass origin) and the polymerizability (through controlled impurity levels and color tone) of the phenol composition.
2Object-affected harmful factors
If phenol is produced from biomass using biological methods, then environmental compatibility is improved, but color tone of the resulting polymer is deteriorated
Solution Approach 1:
The patent controls the color tone parameter by specifying that the absorbance of the phenol composition at 425 nm must be within the range of 0.003 to 0.200. This parameter control ensures that the polymer produced from biomass-derived phenol maintains acceptable color tone while preserving environmental compatibility.
3Object-affected harmful factors
If 4-hydroxybenzoic acid is produced from biomass, then environmental compatibility is improved, but polymerizability is deteriorated
Solution Approach 1:
The patent improves polymerizability of biomass-derived 4-hydroxybenzoic acid by controlling the absorbance at 425 nm to be 0.015 or less and limiting shikimic acid content to 0.003% or less. These parameter specifications ensure that the environmental benefits of biomass production are maintained while achieving sufficient polymerizability for practical applications.
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 solutions improve the balance between environmental compatibility and color tone or polymerizability, resulting in more suitable phenol and 4-hydroxybenzoic acid compositions for polymer production, enhancing the properties of resulting polymers.
Implementation Method 1
manufacturing of chemicals using renewable biomass resources as a raw material has attracted attention as a new industry for realizing a low-carbon society
Implementation Method 2
specific absorbance values at 425 nm and controlled shikimic acid content to enhance environmental compatibility and color tone
Data Source
AI summary
An aromatic compound composition contains at least an aromatic compound (A) in which an actually measured biobased content representing a proportion of radioactive carbon 14C derived from a biomass resource, the actually measured biobased content being determined based on a concentration of radioactive carbon in circulating carbon in the 1950s as measured in accordance with ASTM D6866-20, is equal to or more than 80% and equal to or less than 100%, in which the aromatic compound (A) is phenol (A) or 4-hydroxybenzoic acid (A), in a case where the aromatic compound (A) is the phenol (A), an absorbance at a wavelength of 425 nm when the aromatic compound composition is dissolved in pure water to have a concentration of 90% by mass is equal to or more than 0.001 and equal to or less than 0.70, and in a case where the aromatic compound (A) is the 4-hydroxybenzoic acid (A), an absorbance at a wavelength of 425 nm when the aromatic compound composition is dissolved in ethanol at a concentration of 20 g/L is equal to or less than 0.015, or a content of shikimic acid in the aromatic compound composition is equal to or less than 0.012% by mass with respect to 100% by mass of the entire aromatic compound composition.