A process for producing a thermoplastic resin composition in which the continuous phase comprises an ethylene/vinyl alcohol copolymer (A) and a polyamide resin (B) and the dispersed phase comprises an acid-modified polyolefin elastomer (C), the process being characterized by comprising: step (I) in which an ethylene/vinyl alcohol copolymer (A) and an acid-modified polyolefin elastomer (C) are kneaded to form a mixture in which the acid-modified polyolefin elastomer (C) has been dispersed in the ethylene/vinyl alcohol copolymer (A); step (II) in which a polyamide resin (B) is subsequently added to the mixture obtained in step (I), and the resultant mixture is further kneaded; and step (III) in which a terminal-blocking agent (D) for the polyamide resin (B) is subsequently added to the mixture obtained in step (II) in an amount of 0.1-5 parts by mass per 100 parts by mass of the polyamide resin (B), and the resultant mixture is melt-kneaded at a temperature not lower than the melting point of the polyamide resin (B).
Process for producing thermoplastic resin composition
29.01.2019
Patent
Elektronische Ressource
Englisch
PROCESS FOR PRODUCING THERMOPLASTIC RESIN COMPOSITION
Europäisches Patentamt | 2016
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