Nearly all methyl methacrylate (MMA) is polymerised to make homopolymers and copolymers with the largest application being the casting, moulding or extrusion of polymethyl methacrylate (PMMA) or modified polymers. A major application of MMA polymers and copolymers is in surface coatings and impregnation resins to give colour fastness and weather-resistance properties to latex paints, lacquer resins and stoving enamels.
Over 80% of MMA consumption is accounted for in the construction and automotive industries and by original equipment manufacture. Demand for these markets is greatly influenced by general economic conditions. However, a growing sector is in electronic applications for PMMA where it is used in flat screen televisions and liquid crystal displays.
Methyl methacrylate was first produced in the mid-1930s using a technology that is the basis for the acetone cyanohydrin route used in many plants today. However, this technology uses hydrogen cyanide, a hazardous chemical, and produces an ammonium sulphate by-product which needs to be disposed. Several companies have developed alternative MMA processes.
Methyl methacrylate is a colourless, volatile, flammable liquid with an ester-like odour. Its vapour is irritating to the eyes, nose and throat. Fire should be extinguished with carbon dioxide, dry chemical or foam.
Methyl methacrylate
Price Reports
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Methyl methacrylate
Uses and Outlook
Nearly all methyl methacrylate (MMA) is polymerised to make homopolymers and copolymers with the largest application being the casting, moulding or extrusion of polymethyl methacrylate (PMMA) or modified polymers. This acrylic sheeting has clarity, weather-resistance and light weight properties making it a suitable substitute for glass in safety glazing, panels and illuminated light displays.
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Methyl methacrylate
Process Technologies
ICI first produced MMA in the mid-1930s using a technology that is the basis for the acetone cyanohydrin route used in many plants today. Acetone and hydrogen cyanide are first reacted to produce acetone cyanohydrin. Sulphuric acid converts the cyanohydrin to methacrylamide sulphate which is then treated with a methanol/water mixture and heated to form MMA and ammonium bisulphate.
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