公开(公告)号：US20160001530A1

公开(公告)日：2016-01-07

申请号：US14768361

申请日：2014-03-14

Applicant: TORAY INDUSTRIES, INC.

Inventor： Takayuki UTO ,  Kazuyoshi OTA ,  Yoshihiro MASUDA ,  Wataru GODA

IPC: B32B27/08 ,  B32B27/36 ,  B32B27/40

CPC classification number: B32B27/08 ,  B32B27/18 ,  B32B27/20 ,  B32B27/306 ,  B32B27/36 ,  B32B27/40 ,  B32B27/42 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2250/42 ,  B32B2270/00 ,  B32B2307/304 ,  B32B2307/306 ,  B32B2307/412 ,  B32B2307/50 ,  B32B2307/518 ,  B32B2307/538 ,  B32B2307/714 ,  B32B2307/734 ,  B32B2457/12 ,  B32B2457/20

Abstract: [Problem] Provided is a laminated film which exhibits good general adhesiveness to PVAs, EVAs and PVBs having a wide range of saponification degrees as well as good moist heat-resistant adhesiveness.[Means for Solution] The laminated film comprises a resin layer (α) composed of an aliphatic urethane structure-containing resin composition (1) on at least one side of a thermoplastic resin film, the resin layer (α) satisfying the following properties (i) and (ii): (i) the resin layer (α) has a surface free energy (sum of the dispersion force and the polar force) of not less than 30 mN/m and not greater than 45 mN/m; and (ii) the resin layer (α) has a polar force of not less than 5.0 mN/m and not greater than 15.0 mN/m.

Abstract translation: [问题]提供了具有宽泛的皂化度范围的PVA，EVAs和PVB的良好的一般粘合性以及良好的耐湿热粘合性的层压膜。 [解决方案]层压膜包括在热塑性树脂膜的至少一侧上由含脂肪族氨基甲酸酯结构的树脂组合物（1）组成的树脂层（α），树脂层（α）满足以下性能（ i）和（ii）：（i）树脂层（α）具有不小于30mN / m且不大于45mN / m的表面自由能（分散力和极性力的总和）; 和（ii）树脂层（α）的极限力为5.0mN / m以上且15.0mN / m以下。