Abstract:
A polyethylene-based resin foam sheet with density of 15 to 150 kg/m3, including a foam layer containing, as a base resin, polyethylene-based resin, and antistatic layer which is lamination bonded to at least one side of the foam layer containing a polymeric antistatic agent and, as base resin, polyethylene-based resin, wherein polymeric antistatic agent melting point of 125 to 140° C. and ratio of its partial heat of fusion in a region above melting point to its total heat of fusion of 40% or lower, wherein antistatic layer contains the polymeric antistatic agent of 45 to 300 parts by mass based on 100 parts by mass of the polyethylene-based resin constituting the antistatic layer, wherein antistatic layer has a weight of 1 to 50 g/m2, and antistatic layer shows initial electrostatic potential of 50 V or lower when a voltage of 10 kV is applied to a surface for 30 seconds.
Abstract translation:一种密度为15〜150kg / m 3的聚乙烯系树脂发泡体片,包括含有作为基础树脂的聚乙烯类树脂的发泡层和层叠在泡沫层的至少一面上的抗静电层,所述泡沫层含有 聚合抗静电剂,作为基础树脂的聚乙烯类树脂,其中聚合抗静电剂的熔点为125〜140℃,熔融点以上熔融区域的熔融热分量与熔融热的共聚热比为40 %以下,其中抗静电层含有基于100质量份构成抗静电层的聚乙烯类树脂为45〜300质量份的抗静电剂,其中抗静电层的重量为1〜50g / m 2, 并且当对表面施加10kV的电压30秒时,抗静电层显示50V或更低的初始静电电位。
Abstract:
A polyethylene-based resin foam sheet with density of 15 to 150 kg/m3, including a foam layer containing, as a base resin, polyethylene-based resin, and antistatic layer which is lamination bonded to at least one side of the foam layer containing a polymeric antistatic agent and, as base resin, polyethylene-based resin, wherein polymeric antistatic agent melting point of 125 to 140° C. and ratio of its partial heat of fusion in a region above melting point to its total heat of fusion of 40% or lower, wherein antistatic layer contains the polymeric antistatic agent of 45 to 300 parts by mass based on 100 parts by mass of the polyethylene-based resin constituting the antistatic layer, wherein antistatic layer has a weight of 1 to 50 g/m2, and antistatic layer shows initial electrostatic potential of 50 V or lower when a voltage of 10 kV is applied to a surface for 30 seconds.
Abstract:
A method for producing a multi-layer foam sheet having a foam layer and a resin layer laminated on at least one side of the foam layer, includes coextruding a foamable molten resin composition which contains a low density polyethylene and a physical blowing agent and a molten resin composition which contains 80 to 20% by weight of a specific ethylene-propylene random copolymer and 20 to 80% by weight of a specific polyethylene resin so that the foamable molten resin composition forms the foam layer and the molten resin composition forms the resin layer.