Invention Grant
- Patent Title: Laminated glass intermediate film and laminated glass
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Application No.: US15324028Application Date: 2015-09-30
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Publication No.: US11247436B2Publication Date: 2022-02-15
- Inventor: Kazuhiko Nakayama , Yuusuke Oota , Hirofumi Kitano , Hiroaki Inui
- 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: JPJP2014-202340 20140930
- International Application: PCT/JP2015/077858 WO 20150930
- International Announcement: WO2016/052668 WO 20160407
- Main IPC: B32B17/10
- IPC: B32B17/10 ; B32B3/30 ; B32B7/02

Abstract:
The present invention aims to provide an interlayer film for a laminated glass which can be stored in a stacked state without experiencing autohesion so as to be easily peelable, and a laminated glass including the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass, having a large number of recesses and a large number of projections on a first surface and a second surface opposite to the first surface, the recesses on the first surface and the second surface each having a groove shape with a continuous bottom and being regularly adjacent and parallel to each other, the interlayer film for a laminated glass satisfying Formulae (1) and (2): θ≥10° (1), R/Sm≤0.3 (2), the θ representing an intersection angle of the recesses each having a groove shape with a continuous bottom on the first surface and the recesses each having a groove shape with a continuous bottom on the second surface, the Sm representing the average of Sm1 (μm) and Sm2 (μm), the Sm1 representing an interval between the recesses each having a groove shape with a continuous bottom on the first surface, the Sm2 representing an interval between the recesses each having a groove shape with a continuous bottom on the second surface, the R representing the average of R1 (μm) and R2 (μm), the R1 representing the radius of rotation of the projections on the first surface, the R2 representing the radius of rotation of the projections on the second surface.
Public/Granted literature
- US20170203536A1 LAMINATED GLASS INTERMEDIATE FILM AND LAMINATED GLASS Public/Granted day:2017-07-20
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