POLYMER COMPOSITION FOR LAMINATION AND LAMINATE USING THE SAME

• Main Authors: UENO MASAHIRO, UEMATSU MASAHIRO, YANAGIE MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

To provide a polymer resin composition for lamination using an ionomer which is excellent in workability and hot tack strength, and a laminate.SOLUTION: A composition contains (X1) 100-60 wt.% of an ionomer in which at least a part of a carboxyl group and/or a dicarboxylic acid anhydride group in a copolymer (P) containing a structural unit (A) derived from ethylene and/or α-olefin having 3-20 carbon atoms and a structural unit (B) derived from a monomer having a carboxyl group and/or a dicarboxylic acid anhydride group as essential structural units is converted into a metal-containing carboxylate containing at least one metal ion selected from Group I, II or XII in the periodic table, and a phase angle δ at an absolute value G*=0.1 MPa of complex modulus of elasticity measured by a rotary type rheometer is 50-75 degrees; and (X2) 40-0 wt.% of an ethylenic copolymer containing ethylene by high pressure radial polymerization as an essential monomer.SELECTED DRAWING: None 【課題】 加工性に優れ、ホットタック強度に優れるアイオノマーを用いたラミネート用重合体樹脂組成物及び積層体を提供する。【解決手段】 （Ｘ１）エチレン及び／又は炭素数３〜２０のα−オレフィンに由来する構造単位（Ａ）と、カルボキシル基及び／又はジカルボン酸無水物基を有するモノマーに由来する構造単位（Ｂ）を必須構成単位として含む共重合体（Ｐ）中の、カルボキシル基及び／又はジカルボン酸無水物基の少なくとも一部が周期表１族、２族、又は１２族から選ばれる少なくとも１種の金属イオンを含有する金属含有カルボン酸塩に変換されてなり、回転式レオメータで測定した複素弾性率の絶対値Ｇ＊＝０．１ＭＰａにおける位相角δが、５０度〜７５度であることを特徴とするアイオノマー １００〜６０重量％と、（Ｘ２）高圧ラジカル重合によるエチレンを必須モノマーとするエチレン系共重合体 ４０〜０重量％からなることを特徴とする、組成物である。【選択図】 なし