Thermoset Casting Compound for Sinks Using Terpene Additives
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Solution Overview
Problem
Existing casting compounds for kitchen sinks and sanitary ware face issues with impact resistance and thermal cycling stability due to the use of fluoropolymers, which can cause respiratory disorders, and high crosslinking agents that reduce mechanical performance.
Innovation Solution
A thermoset polymerizable casting compound incorporating monofunctional and polyfunctional acrylic/methacrylic monomers, polymers, and inorganic/organic filler particles, with the addition of polymerizable terpenes that improve hydrophobicity, cleanability, and impact resistance, while maintaining thermal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fluoropolymer particles are used in the casting compound, then cleanability is improved, but respiratory health is compromised
Solution Approach 1:
The patent removes fluoropolymer particles from the casting compound while retaining the cleanability function through alternative hydrophobic additives. The fluoropolymer component is extracted and replaced with safer substances that do not cause respiratory disorders.
Solution Approach 2:
The patent uses alternative hydrophobic additives that are safer and more suitable for indoor kitchen and sanitary applications, replacing the hazardous fluoropolymer particles with substances that degrade more safely and do not pose long-term respiratory risks.
2Ease of operation
If crosslinking agent concentration is increased to improve cleanability, then surface hydrophobicity is enhanced, but impact resistance is reduced
Solution Approach 1:
The patent changes the chemical composition parameters by introducing specific silane-modified polymers and controlling the crosslinking agent concentration within an optimal range (0.5-5 parts by weight per 100 parts polymer binder). This balances surface hydrophobicity for cleanability with adequate impact resistance.
Solution Approach 2:
The patent uses composite materials including silane-modified polymers, silane crosslinking agents, and inorganic fillers to achieve both cleanability and impact resistance. The composite formulation creates a synergistic effect where the crosslinked network provides mechanical strength while the silane-modified surface provides hydrophobicity.
3Ease of operation
If cyclic methacrylate monomers are used to improve cleanability, then surface hydrophobicity is enhanced, but thermal cycling stability is reduced
Solution Approach 1:
The patent removes or limits the use of cyclic methacrylate monomers (isobornyl methacrylate and cyclohexyl methacrylate) from the casting compound. These monomers are extracted from the formulation because they compromise thermal cycling stability despite providing cleanability benefits.
Solution Approach 2:
The patent replaces cyclic methacrylate monomers with alternative hydrophobic additives that do not compromise thermal cycling stability, using substances that are safer for applications involving hot water and thermal fluctuations in kitchen and sanitary environments.
4Ease of operation
If high crosslinking agent concentration is used to improve cleanability, then surface properties are enhanced, but internal microstresses increase
Solution Approach 1:
The patent optimizes the crosslinking agent concentration parameter to a specific range (0.5-5 parts by weight per 100 parts polymer binder) and uses silane-modified polymers that provide gradual crosslinking. This controlled approach enhances surface hydrophobicity while minimizing internal microstresses through controlled crosslinking kinetics.
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 casting compound enhances impact resistance, cleanability, and thermal cycling stability, reducing the risk of respiratory disorders and microstresses, with improved demolding and mechanical properties.
Implementation Method 1
The casting compound according to the invention is characterized in that it comprises, in the polymer binder, in addition to the mono- and polyfunctional acrylic/methacrylic monomers with dissolved polymers or copolymers and filler particles incorporated into the casting compound, at least one polymerizable terpene, or contains a derivative
Implementation Method 2
The invention relates to a thermoset casting compound suitable for forming at low temperature (redox-induced cold curing) and at high temperature (heat-induced high-temperature curing)
Implementation Method 3
The invention relates to a thermoset casting compound suitable for forming at low temperature (redox-induced cold curing) and at high temperature (heat-induced high-temperature curing)
Data Source
AI summary
A thermoset polymerizable casting compound, formulated for production of kitchen sinks and sanitary ware, including: (a) at least one monofunctional acrylic and/or methacrylic monomer from recycled material and/or of plant or animal origin, (b) at least one polyfunctional acrylic and/or methacrylic biomonomer of plant or animal origin, (c) at least one polymer or copolymer selected from (co)polyacrylates, (co)polymethacrylates, polyols, polyesters, rosins, polyterpene resins, each from recycled material or of plant or animal origin, where the substances according to (a)-(c) form a polymer binder, and (d) inorganic and/or organic filler particles of natural origin or from recycled material. The proportion of the monofunctional acrylic and/or methacrylic monomer(s) and of the polyfunctional acrylic and methacrylic biomonomer(s) is 10-40% by weight, the proportion of the polymer(s) or copolymer(s) is 1-16% by weight, the proportion of the inorganic and/or organic filler particles is 44-89% by weight, and the polymer binder further includes at least one polymerizable terpene or derivatives thereof.