ACTIVE ENERGY RAY-CURABLE ADHESIVE COMPOSITION FOR PLASTIC FILM OR SHEET

• Main Authors: OKAZAKI EIICHI, INADA KAZUMASA, ASANO YOICHI, SANAI YASUYUKI
• Format: Patent
• Language: English; Japanese
• Published: 19.02.2015
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

PROBLEM TO BE SOLVED: To provide an active energy ray-curable adhesive composition for a plastic film or sheet having low viscosity, excellent in curability, adhesiveness to various kinds of plastic films or sheets, and colorless transparency.SOLUTION: There is provided an active energy ray-curable adhesive composition for a plastic film or sheet containing following (A) to (C) components, (A) component: diglycidyl ether of diol having 2 to 10 carbon atoms and no aromatic ring, (B) component: a compound having 2 or more oxetanyl groups in a molecule and a molecular weight of 500 or less, (C) component: a photo cationic polymerization initiator. The cationic curable component of 25 wt.% or more is contained in whole composition, the (A) component of 25 to 75 pts.wt. and the (B) component of 25 to 75 pts.wt. are contained in 100 pts.wt. of the total amount of the cationic curable component, the (C) component of 0.5 to 10 wt.% is contained in the whole component, and the total chlorine content in the composition is 0.1 wt.% or less. 【課題】低粘度で、硬化性に優れ、各種プラスチックフィルム又はシートへの接着力に優れ、無色透明性にも優れたプラスチックフィルム等用活性エネルギー線硬化型接着剤組成物の提供。【解決手段】下記（Ａ）〜（Ｃ）成分を含む組成物であって、（Ａ）成分：炭素数２〜１０個を有し、芳香族環を有しないジオールのジグリシジルエーテル（Ｂ）成分：１分子中に２個以上のオキセタニル基を有する分子量５００以下の化合物（Ｃ）成分：光カチオン重合開始剤カチオン硬化性成分を組成物全体中に２５重量％以上含有し、カチオン硬化性成分合計量１００重量部中に、（Ａ）成分を２５〜７５重量部及び（Ｂ）成分を２５〜７５重量部含有し、組成物全体中に（Ｃ）成分を０．５〜１０重量％含有し、組成物中の全塩素含有量が０．１重量％以下であるプラスチック製フィルム又はシート用活性エネルギー線硬化型接着剤組成物。【選択図】なし