Filing of Lawsuit Seeking Injunction and Damages for Patent
Infringement in Relation to PVB Interlayer

Sep. 30, 2024

SEKISUI CHEMICAL CO., LTD.

 The High Performance Plastics Company (President: Ikusuke Shimizu) of SEKISUI CHEMICAL CO., LTD. (President and Representative Director: Keita Kato; hereinafter “SEKISUI CHEMICAL”) has filed a patent infringement lawsuit against Kuraray Korea Ltd. (hereinafter “Kuraray Korea”), a subsidiary of Kuraray Co., Ltd., as the defendant in the Seoul Central District Court of Korea.

 Based on the Korean patent for PVB Interlayer owned by SEKISUI CHEMICAL, the lawsuit seeks an injunction against the manufacture and sale, etc. in Korea of ‘Trosifol’ The Wedge Acoustic and ‘Trosifol’ The Wedge Acoustic Shadeband, sound insulation wedge products manufactured and sold by Kuraray Korea, and damages.

 SEKISUI CHEMICAL Group regards its intellectual property rights as an important management resource. It will take strict action in cases where it determines that SEKISUI CHEMICAL’s intellectual property rights have been infringed.

About SEKISUI CHEMICAL Group

Headquartered in Japan, SEKISUI CHEMICAL CO., LTD. (TSE: 4204) and its subsidiaries make up the SEKISUI CHEMICAL Group. 26,000 employees in over 156 companies throughout 20 countries and regions aim to contribute to improving the lives of the people of the world and the earth’s environment. Thanks to a history of innovation, dedication and a pioneering spirit, SEKISUI CHEMICAL now holds leading positions in its three diverse business divisions as well as top global market share in interlayer film, foam products, conductive particles and more.