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Priority to JP4239774ApriorityCriticalpatent/JPS5650700B2/ja
Publication of JPS50135175ApublicationCriticalpatent/JPS50135175A/ja
Publication of JPS5650700B2publicationCriticalpatent/JPS5650700B2/ja
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C45/16—Making multilayered or multicoloured articles
B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
B29C45/1643—Making multilayered or multicoloured articles having a "sandwich" structure from at least three different materials or with at least four layers