Title:
熱可塑性樹脂の平板状成形体、多層体、真贋判定方法、真贋判定システムおよびプログラム
Document Type and Number:
Japanese Patent JP7457313
Kind Code:
B2
Abstract:
Provided are a flat molded-body, a multi-layered body, a method of determining authenticity thereof, a system of determining authenticity thereof, and a program that can control same; the foregoing making it possible to improve anticounterfeit performance in a technology using a luminous body that is made to emit light by being irradiated with light. This flat molded-body of thermoplastic resin comprises a luminous body that emits light when irradiated with light, wherein when the flat molded-body of thermoplastic resin is irradiated with light and is observed with a microscope: a number N0 of bright spots is at least 1, and a number N1 of bright spots is at most Ne1 represented by (F1); N0 is a number of specific bright spots per 46.2 cm2 of surface area in plan view of the flat molded-body of thermoplastic resin; N1 is a number of specific bright spots per 1.4 mm2 of surface area in plan view of the flat molded-body of thermoplastic resin; D50 is a median diameter [μm] of the luminous body; and the specific bright spots are bright spots having a maximum length of at least 10 μm but no more than the thickness of the flat molded-body.
Inventors:
Seiei Takeda
Shota Wakayama
Kentaro Suzuki
Maya Fukui
Masaru Tanaka
Shota Wakayama
Kentaro Suzuki
Maya Fukui
Masaru Tanaka
Application Number:
JP2019189867A
Publication Date:
March 28, 2024
Filing Date:
October 17, 2019
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
MGC Filsheet Co., Ltd.
Plagenome Co., Ltd.
MGC Filsheet Co., Ltd.
Plagenome Co., Ltd.
International Classes:
C08J5/18; B32B27/18; B42D25/36; C08K3/01; C08L67/00; C08L69/00; C09K11/00
Domestic Patent References:
| JP2015168728A | ||||
| JP2012236369A |
Foreign References:
| US20070006127 | ||||
| WO2007072795A1 | ||||
| CN102690438A |
Attorney, Agent or Firm:
Sykes Patent Attorney Corporation