The laminating object which has the layer which comprise a copolymer of a 4-methyl-1-pentene and 1-hexene on the outside of substrate.
Publication Date: 2003-May-22
The IP.com Prior Art Database
The laminating object which has the layer which comprise a copolymer of a 4-methyl-1-pentene and 1-hexene on the outside of substrate. As composition of this copolymer, they are 50 - 80 % of the weight of 4-methyl-1-pentene contents, and 20 - 50 % of the weight of 1-hexene contents. Since this copolymer has the outstanding gas permeability, by using for the outer layer, it can acquire a laminating object with easy control of the degree of gas penetration . Moreover, since this copolymer has low melt point, the heat-seal properties in low temperature becomes good. Furthermore, since it excels also in the pliability in low temperature, this copolymer can be used conventionally suitable also for the use from which the pinhole, the tear, etc. had become a problem on the occasion of refrigerated transport. That is, by using this copolymer as an outer layer of a laminating object, it becomes possible to give the function of gas permeability, heat-seal properties, and pliability, with the transparency and safe health property which were excellent in 4-methyl-1-pentene system resin, so it can use for a broad use by selection of the resin used as an substrate or an adhesion layer.Specifically,for example, as a use of the product for which the character of both gas permeability and heat-seal property are needed, a blood platelet preservation bag, a cell preservation bag, etc. are mentioned, and as a product for which the character of gas permeability and the pliability in low temperature are needed, the packing material for freshness maintenance of a vegetables and fruits thing (for example, a film, a sheet, a bag, a bottle, a box, tube container, etc.) etc. is mentioned.