POLYURETHANE MEMBRANE BASED ON COMPLEX POLYESTER POLYOLES (OPTIONS), A PRODUCT CONTAINING A NAMED MAMBRANE, METHOD FOR OBTAINING A LAMINATED MEMBRANE

摘要

The present invention relates to polyester polyol membranes. The membrane with a thickness of 2 mm has a gas transmission rate relative to gaseous nitrogen not more than 15.0. In some embodiments, the membranes are made from a mixture of one or more thermoplastic polyurethanes based on polyester polyol with one or more barrier materials. Membranes can be made single-layer or in the form of multi-layer laminates and used in various fields. The international application was published together with an international search report.