摘要:
A moisture permeable polyester-based elastomer film that has been subjected to a stretching treatment and has a tension set of not more than about 10 percent when elongated by 50 percent is provided. A process for the manufacture of the moisture permeable polyester-based elastomer film is disclosed. A moisture permeable waterproof fabric comprising a the polyester-based elastomer film laminated to a fiber fabric is further provided.
摘要:
A polyester film for metal sheet laminating. The film comprises a blend of (I) polybutylene terephthalate or a polyester comprising it as the main ingredient with (II) polyethylene terephthalte or a polyester comprising it as the main ingredient, the contents of the polyester (I) and the polyester (II) being 80 to 40 wt % and 20 to 60 wt %, respectively. This film has a melting point of 200 to 223° C. attributable to the polyester (I) and a melting point of 230 to 256° C. attributable to the polyester (II). The film as a whole has an intrinsic viscosity of 0.75 or higher.
摘要:
A white film to be laminated to a metal surface and a method of producing the same. This white film comprises first and second layers which are laminated with the arrangement of second layer/first layer/second layer. The middle, first layer is composed of 80-40 wt % a first polyester, and 20-60 wt % titanium oxide added therewith. The front and back, second layers are composed of 80-100 wt % a second polyester, and 20-0 wt % titanium oxide. The film is a biaxially stretched film, and the content of titanium oxide in the entire film is 20-50 wt %.