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Abstract
Multi-component laminate moulding (MLM) is a novel injection moulding process that can produce multilayered injection mouldings from at least two thermoplastic compounds. The principle of the process and initial results were presented at the PPE meeting in 2003. The present study will describe recent developments in the process and the results from moulding trials carried out on combinations of thermoplastics including several engineering thermoplastic compounds. The discussion will highlight the potential benefits of the technology. Reference will be made to the relationship between the mechanical properties and the level of compatibility between the separate components. An assessment of the potential cost saving from the use of the MLM process with engineering resins will also be presented.