III. low temperature multilayer film and its realization method in practice

摘要

1. Recyclable multilayer films consist of at least one central layer between the first and second surface layers, in which the reclaimable multilayer films consist of ethylene/A-grease interpolation components and low density polyethylene. Remedy 1: Recyclable multilayer films, including: the first surface layer, calculated by weight, according to the total polymer weight of the first surface layer, consisting of ethylene/A-oil fine inflow with a density within the range. From 0.890 g/cc to 0.915 g/cc, the melting index (I1832222) ranges from 0.1 to 5 g/10 minutes.1. Molecular weight distribution (M695/M 8345); 1.8-3.5 and Comorian distribution constant (CDC) 95-200; according to the total polymer weight of at least one central layer, there is at least one central layer, consisting of 15-85% by weight; 1. Ethylene/A-oil fine interpolation solution, concentration between 0.890 g/cc and 0.915 g/cc, melting index (I83222) between 0.1 and 5 g/10 minutes, molecular weight distribution (M695/M) between 1.8 and 3.5, Comoros molecular distribution constant (CDC); In the range of 95-200, the second layer includes 25-60% weight.A. According to the weight of the total polymer in the second layer, the composition of ethylene/A-oil fine interpolation solution in the concentration range of 0.890 g/cc to 0.915 g/cc, the melting index (I832222) is 0.1 to 5 g/10 minutes, and the molecular weight distribution; 1. In the range of 1.8 to 3.5 and from 95 to 200, the distribution constants of the Comorians (M695/M 8345) have at least one central surface layer between the first and second surface layers.The content of ethylene/A-grease polymer in the first layer is different by weight percentage from that in the central layer. The weight percentage of ethylene/A-grease polymer in the second layer is different from that of ethylene/A-grease polymer in the central layer. In this layer, multilayer films can be recovered. According to the total weight of the polymer in the recoverable multilayer film, it contains 25% to 75% weight by weight.According to the total weight of the polymer in the recoverable multilayer film, the recoverable multilayer film also contains 30% to 55% by weight in the ethylene/A-ene-ene interpolation component. A. Low density polyethylene polymer, its density is 0.0910-0930g/ml and I83222G/10 minutes;