Morphology Stable Wax via Glycerol Esterification
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Solution Overview
Problem
Conventional paraffin wax candles emit smoke and toxic particles, have undesirable burning characteristics, and are becoming scarce due to diminishing supply, necessitating a cost-effective, biodegradable alternative with improved physical and olfactory properties.
Innovation Solution
A morphology stable wax composition is created through the (trans)esterification of a triglyceride stock, such as hydrogenated soybean oil, with a glycerol-based composition, which stabilizes the fat morphology, reducing cracking and blooming, and includes additives like diamine compounds to alter melting temperature and diacids for flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If paraffin wax is used as candle material, then cost and availability are improved, but harmful emissions (smoke and toxic particles) increase
Solution Approach 1:
The patent changes the chemical composition parameters of the wax material by incorporating vegetable oil derivatives (fatty acid esters, triglycerides) alongside paraffin wax. This compositional parameter change fundamentally alters the combustion characteristics, reducing harmful emissions while maintaining the availability and cost-effectiveness of paraffin-based formulations.
Solution Approach 2:
The invention creates a composite wax material combining paraffin wax with vegetable oil-derived components (fatty acid esters, triglycerides, and their derivatives). This composite approach leverages the availability of paraffin while introducing biodegradable, cleaner-burning components to reduce harmful emissions.
2Reliability
If vegetable wax is used as alternative to paraffin, then biodegradability and renewability are improved, but physical property limitations (cracking, blooming) worsen
Solution Approach 1:
The patent modifies the physical and chemical parameters of vegetable wax derivatives through controlled hydrolysis and esterification processes. By adjusting molecular weight distribution, fatty acid composition, and ester linkage structures, the formulation achieves both biodegradability and resistance to cracking and blooming.
Solution Approach 2:
The invention introduces specific functional components (fatty acid esters with controlled chain lengths, triglycerides with specific fatty acid compositions) at optimized concentrations within the wax matrix. These localized compositional adjustments address specific defects like cracking and blooming while preserving the overall biodegradable nature of the formulation.
3Temperature
If hydrogenated soybean oil is slowly cooled to form wax, then solidification is achieved, but cracking and blooming increase
Solution Approach 1:
The patent applies preliminary chemical modification to the hydrogenated soybean oil before solidification, converting it into fatty acid esters and triglycerides with controlled molecular structures. This preliminary chemical action creates a more stable crystalline structure that resists cracking and blooming during subsequent cooling and solidification processes.
Solution Approach 2:
The invention changes the molecular parameters of the oil through esterification, creating compounds with optimized melting points and crystalline structures. The controlled hydrolysis and re-esterification processes produce molecules that solidify without excessive cracking or blooming by adjusting chain length distribution and ester linkage stability.
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 resulting wax composition exhibits reduced cracking, friability, and blooming, offering a clean-burning, cost-competitive alternative with desirable physical and olfactory properties, suitable for candles and various wax-based applications.
Implementation Method 1
The incorporation of glycerol-based compositions, for example, through esterification or transesterification can stabilize the fat morphology
Implementation Method 2
The incorporation of glycerol-based compositions, for example, through esterification or transesterification can stabilize the fat morphology
Implementation Method 3
the generated heat melts the solid wax, and the resulting liquid flows up the wick by capillary action
Implementation Method 4
the resulting liquid flows up the wick by capillary action
Data Source
AI summary
Described are morphology stable wax compositions comprising the (trans)esterification product of a wax-forming composition comprising: (a) a triglyceride stock, a fatty acid stock, or a mixture thereof; and (b) a glycerol-based composition comprising glycerol, polyglycerol, or a mixture thereof. Methods of making the waxes are also described. The wax compositions may be used in candles, stack waxes, jell candles, cosmetics, food coatings, adhesives, board manufacturing (e.g., particle board and oriented strand board), urethane foams or coatings, alkyd coatings, coating formulation additives, printing additives, polymer processing agents, extrusion processing aids, polymer plasticizers, mold releases, polishes, and stick markers.