Hybrid Wax Composition for Compression Molding
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Solution Overview
Problem
The candle industry faces challenges in creating compression candles from bio-based materials that exhibit sufficient compressive and cohesive strength, as hybrid waxes with greater than 50% natural oil-based wax often fail to match paraffin systems in bulk strength, leading to defects like scarring, erosion, and poor handling resistance, especially in larger sizes.
Innovation Solution
A hybrid wax composition combining hydrogenated natural oil-based wax with paraffin wax, where the paraffin wax comprises less than 50% of the mixture and has a specific distribution of hydrocarbon chain lengths from C25 to C29, enhancing compressive strength and de-molding characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hybrid wax compositions with greater than 50% weight natural oil-based wax are used, then bio-based material content is improved, but compressive strength and cohesive strength deteriorate
Solution Approach 1:
The patent changes the chemical parameters of the natural oil-based wax by hydrogenating it to reduce iodine value below 50, and selectively controls the paraffin wax carbon chain distribution (about 52% or greater of hydrocarbons with C25-C29 chains). These parameter changes enable the hybrid wax to achieve adequate strength while maintaining high bio-based content
Solution Approach 2:
The patent creates a composite wax system combining hydrogenated natural oil-based wax with specifically formulated paraffin wax. The composite structure leverages the renewable content of natural oils while using paraffin to provide structural integrity and compressive strength, achieving a balance between eco-friendliness and mechanical performance
2Adaptability or versatility
If hybrid wax compositions with greater than 50% weight natural oil-based wax are used, then bio-based material content is improved, but manufacturing precision deteriorates due to defects like scarring, erosion, and pitting
Solution Approach 1:
The patent modifies the chemical parameters of natural oil-based wax through hydrogenation to achieve iodine value below 50, and controls paraffin wax carbon chain distribution. These changes improve the wax's physical properties during compression molding, reducing surface defects like scarring, erosion, and pitting while maintaining high bio-based content
Solution Approach 2:
The patent converts the typically harmful soft and weak properties of natural oil-based waxes into benefits by carefully selecting and hydrogenating specific natural oils, then combining them with paraffin wax. This transformation allows the hybrid composition to exhibit improved de-molding characteristics and reduced surface defects while retaining high renewable content
3Strength
If paraffin-based compression candles are used, then compressive strength and cohesive strength are improved, but environmental sustainability deteriorates due to non-renewable resource usage
Solution Approach 1:
The patent formulates a composite hybrid wax containing less than 50% paraffin wax combined with hydrogenated natural oil-based wax. This composite structure reduces reliance on non-renewable petroleum-based paraffin while using it strategically to maintain compressive strength and cohesive strength, achieving a balance between performance and environmental sustainability
Solution Approach 2:
The patent changes the composition parameters of the hybrid wax to maximize renewable content while maintaining strength. By controlling the paraffin content at less than 50% and specifying carbon chain distribution (about 52% or greater with C25-C29 chains), the formulation achieves adequate mechanical properties with improved environmental sustainability
4Strength
If paraffin-based compression candles are used, then compressive strength is improved, but fragrance holding ability deteriorates
Solution Approach 1:
The patent creates a composite hybrid wax system where hydrogenated natural oil-based wax (present in greater than 50% weight) provides superior fragrance holding capacity, while a reduced amount of paraffin wax (less than 50%) maintains necessary structural strength. This composite approach simultaneously improves fragrance holding ability while preserving adequate compressive strength
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 hybrid wax composition improves compressive strength and de-molding characteristics, reducing defects such as scarring and flashing, allowing for the production of bio-based candles with enhanced durability and handling resistance, even in larger sizes.
Implementation Method 1
a wax comprising a hydrogenated natural oil
Implementation Method 2
The term cohesive strength is used herein to refer to the bulk strength of a compressed wax article
Data Source
AI summary
A hybrid wax compositions that are suitable for use in manufacturing wax articles (e.g., candles) by compression molding. The combination of a hydrogenated natural oil-based wax and a paraffin wax having a select distribution of hydrocarbon chain lengths provides the hybrid wax compositions with improved properties, such as improved compressive strength and improved de-molding characteristics, for example, as evidenced by reducing scarring and/or flashing. The hybrid wax compositions comprise: (a) a wax comprising a hydrogenated natural oil; and (b) a paraffin wax, wherein the paraffin wax comprises less than about 50% by weight of the hybrid wax composition, and wherein about 52% or greater of hydrocarbons in the paraffin wax have carbon chain lengths ranging from C25 to C29.