IMPACT-RESISTANT POLYPROPYLENE FILM AND METHOD FOR PRODUCING THE SAME

An impact-resistant polypropylene film and a method for producing the same are provided. The impact-resistant polypropylene film includes two outer layers and a middle layer. Each of the outer layers includes a propylene block polymer. The propylene block polymer includes a propylene monomer and an...

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Hauptverfasser: YUAN, CHING-YAO, LIAO, TEAO, WANG, CHIH-FENG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An impact-resistant polypropylene film and a method for producing the same are provided. The impact-resistant polypropylene film includes two outer layers and a middle layer. Each of the outer layers includes a propylene block polymer. The propylene block polymer includes a propylene monomer and an ethylene-propylene polymer, and the ethylene-propylene polymer is dispersed in the propylene monomer to form a sea-island structure. The sea-island structure includes a sea phase and an island phase, the propylene monomer is defined as the sea phase, and the ethylene-propylene polymer is defined as the island phase. The middle layer includes a propylene block polymer and an ethylene elastomer. Based on 100 parts by weight of the middle layer, a content of the propylene block polymer is 60 to 80 parts by weight, and a content of the ethylene elastomer is 20 to 40 parts by weight.