Abstract: There is provided a laminate having a high adhesive strength between a polyethylene layer and a base material layer without using any anchor coat agent. A method for producing the laminate, including a step of extrusion laminating a resin composition including an ethylene-based polymer composition containing an ethylene-based polymer and a phosphorus-containing compound having a specific structure with a base material so that the resin composition and the base material directly contact each other, wherein the ethylene-based polymer contains at least one of a high-pressure processed low-density polyethylene and a copolymer of ethylene with an ?-olefin having 3 to 10 carbon atoms, and the ethylene-based polymer composition satisfies predetermined requirements.

Abstract: [Problem] To provide polypropylene for a microporous film having excellent heat resistance and strength. [Solution] Polypropylene for a microporous film satisfying the following requirements (1) and (2): (1) the weight-average molecular weight (Mw) value, as determined by gel permeation chromatography (GPC), is not less than 100,000 but less than 800,000, the value (Mw/Mn) obtained by dividing the weight-average molecular weight by the number-average molecular weight is more than 7.0 but not more than 12.0, and the value (Mz/Mw) obtained by dividing the Z-average molecular weight by the weight-average molecular weight is not less than 3.8 but not more than 9.0, and (2) the mesopentad fraction, as measured by 13C-NMR (nuclear magnetic resonance method), is not less than 95.5%.

Abstract: A film for inorganic substance deposition, comprising single or multiple resin layers, wherein all of the resin layers contain an ethylene-based polymer (A) having a melt tension (MT), as measured at 190° C., of not more than 5.0 g, and the film satisfies the following requirements: Requirement (1): the amount of a component generated by heating the film under the prescribed conditions is not more than 1.2 ?g per milligram of the film; Requirement (2): the amount of a compound containing pentavalent phosphorus, said compound being recovered after washing of a surface of the film under the prescribed conditions, is not more than 9 ?g; and Requirement (3): the amount of an oxide of an oligomer of a hexamer to a decamer, said oxide being recovered after washing of a surface of the film under the prescribed conditions, is not more than 1.5 ?g.

Abstract: [Problem] To provide polypropylene for a microporous film having excellent heat resistance and strength. [Solution] Polypropylene for a microporous film satisfying the following requirements (1) and (2): (1) the weight-average molecular weight (Mw) value, as determined by gel permeation chromatography (GPC), is not less than 100,000 but less than 800,000, the value (Mw/Mn) obtained by dividing the weight-average molecular weight by the number-average molecular weight is more than 7.0 but not more than 12.0, and the value (Mz/Mw) obtained by dividing the Z-average molecular weight by the weight-average molecular weight is not less than 3.8 but not more than 9.0, and (2) the mesopentad fraction, as measured by 13C-NMR (nuclear magnetic resonance method), is not less than 95.5%.