公开(公告)号：US20190047262A1

公开(公告)日：2019-02-14

申请号：US16075618

申请日：2017-02-03

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Nami MINAKUCHI ,  Tatsuya IWAMOTO ,  Kohei KANI ,  Jun SASAKI ,  Yuuma TAKEDA

IPC: B32B17/10

Abstract: Provided is an interlayer film for laminated glass capable of being enhanced in sound insulating properties of laminated glass at 30° C. The interlayer film for laminated glass according to the present invention includes first and second layers each containing a thermoplastic resin and a plasticizer, and when an absolute value of a difference in cloud point using the thermoplastic resin and the plasticizer in each of the first and second layers is represented by Xa, and a content based on parts by weight of the entire plasticizer in the interlayer film for laminated glass relative to 100 parts by weight of the entire thermoplastic resin in the interlayer film for laminated glass is represented by Z, the interlayer film satisfies at least one of the first constitution: “Xa≤115 and Z≤−0.16Xa+59” and the second constitution: “the thermoplastic resin in the first layer is a polyvinyl acetal resin, and when the acetylation degree on a mole percent basis of the polyvinyl acetal resin in the first layer is represented by Y, Y≥2 and Z≤−0.16Xa−0.2Y+59”.