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| Filled acrylic solid surfaces having superior mechanical properties and ease of manufacture are made from reaction curable resin compositions. The filled acrylic solid surface materials of this technology have superior mechanical properties: - flexural and tensile properties - fatigue resistance - impact resistance - thermally induced stress crack resistance - hot/cold water cycling whitening resistance Further, these compositions are easy to manufacture and avoid the de-aerating, mold filling and pouring, pumping and line pressure difficulties, associated with high molecular weight reaction curable mixes. The fill material is alumina trihydrate and the mixed ester of propylene glycol methacrylate and phosphorus pentoxide. The ester reaction product acts as an effective coupling agent between the alumina trihydrate filler and the acrylic matrix thereby imparting the enhanced mechanical properties.filled acrylic solid surface materials 20-80% weight alumina trihydrate (ATH) preferably 65% fillers adjuvants present (e calcium carbonate) Casting compositions initiators syrup 20% polymethyl methacrylate (PMMA) dissolved Phosphoric acid esters hydroxy-containing methacrylates vinylic compounds yield mixture phosphate (mono di) effective coupling agents (acrylic) systems Significantly mechanical flexural tensile fatigue resistance boiling water stability impact hot/cold cycling whitening thermally induced stress crack realized Scanning electron micrographs fractured surfaces show little 02 parts hundred added neat in-situ casting slurries (eg liquid syrups monomer) curing peroxide azo initiation dispersed viscosity fluids flaw-free castings enhanced acts immediately compared silane pre-hydrolysis considerable time elevated temperature mixes |
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Interested? This is an abstract of a technology that is available for sale or license. yet2.com can introduce you confidentially to the owner of this technology.
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