Invention Grant
- Patent Title: Interlayer film for laminated glass, and laminated glass
-
Application No.: US17620888Application Date: 2019-11-20
-
Publication No.: US11724481B2Publication Date: 2023-08-15
- Inventor: Shinji Kawada , Yuki Ishikawa
- Applicant: SEKISUI CHEMICAL CO., LTD.
- Applicant Address: JP Osaka
- Assignee: SEKISUI CHEMICAL CO., LTD.
- Current Assignee: SEKISUI CHEMICAL CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP 19123788 2019.07.02
- International Application: PCT/JP2019/045501 2019.11.20
- International Announcement: WO2021/002033A 2021.01.07
- Date entered country: 2021-12-20
- Main IPC: B32B17/10
- IPC: B32B17/10 ; B32B27/08 ; B32B27/22 ; B32B27/30

Abstract:
Provided is an interlayer film for laminated glass capable of enhancing the pour stability at the time of extrusion during production of the interlayer film for laminated glass, and having excellent shape stability. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or two or more-layer structure, and includes a first layer containing a thermoplastic (meth)acrylic polymer and satisfies at least one of a first configuration that the thermoplastic (meth)acrylic polymer contained in the first layer is a thermoplastic (meth)acrylic polymer having a molecular weight distribution ratio of weight average molecular weight to number average molecular weight of 1 or more and 6 or less, and a second configuration that the thermoplastic (meth)acrylic polymer contained in the first layer is a thermoplastic (meth)acrylic polymer having a gel fraction of 5% by weight or less.
Public/Granted literature
- US20220363039A1 INTERLAYER FILM FOR LAMINATED GLASS, AND LAMINATED GLASS Public/Granted day:2022-11-17
Information query