RESIN-COATED ULTRA-THIN GLASS

• Main Authors: FUKUZAKI YUSUKE, SUWA MITSUFUMI, KOBAYASHI HIDEYUKI
• Format: Patent
• Language: English; Japanese
• Published: 17.10.2022
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; TRANSPORTING

To provide a resin-coated ultra-thin glass which is highly heat resistant and has superior rupture strength even though the thickness of a resin layer is just 20 μm or less.SOLUTION: A resin-coated ultra-thin sheet glass is provided, comprising a resin layer having a thickness of 20 μm or less provided at least on one surface of an ultra-thin sheet glass having a thickness in a range of 20-100 μm, inclusive. A resin composition (A) forming the resin layer contains a resin having a 30% or more methyl methacrylate (MMA) unit and a weight-average molecular weight (Mw) of 50,000 or greater, and has a residual monomer content of 10 wt.% or less.SELECTED DRAWING: None 【課題】耐熱性が高く、樹脂層の膜厚が２０μｍ以下であっても、破砕強度に優れた樹脂被覆超薄板ガラスを提供する。【解決手段】厚み２０μｍ以上１００μｍ以下の超薄板ガラスの少なくとも片面に膜厚２０μｍ以下の樹脂層を有し、前記樹脂層を形成する樹脂組成物（Ａ）がメタクリル酸メチル（ＭＭＡ）単位３０％以上で重量平均分子量（Ｍｗ）が５万以上の樹脂を含有し、かつ残存モノマー量が１０重量％以下であることを特徴とする樹脂被覆超薄板ガラス。【選択図】なし