| 摘要 |
The purpose of the present invention is to provide a sealant film which can be heat-sealed at a lower temperature, can keep the heat seal strength thereof at a high level regardless of the heat-sealing conditions employed, and can make it possible to produce a lid material that can be opened easily. A polyolefin multilayer sealant film which has a laminate layer (A) having at least one layer that serves as one outermost layer and a heat seal layer (B) that serves as the other outermost layer, and in which the laminate layer (A) side is adhered to a base film upon use. The polyolefin multilayer sealant film is characterized in that the laminate layer (A) is made from a polyolefin resin composition containing a polyethylene resin (A1) and the heat seal layer (B) is made from a polyolefin resin composition containing 10 to 70% by weight of a polyethylene resin (B1), 5 to 15% by weight of a propylene-butene copolymer (B2), 10 to 50% by weight of a modified polyolefin polymer (B3) and 10 to 30% by weight of an adhesiveness-imparting agent (B4). |
