PHOTOCURABLE ADHESIVE COMPOSITION

• Main Authors: KANEKO, Sho, TERADA, Tomohito
• Format: Patent
• Language: English; French; Japanese
• Published: 13.10.2016
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; 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; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

The present invention is a photocurable adhesive composition which provides a laminate having the same adhesive strength when irradiated with light in the presence of oxygen as when in the absence of oxygen, said composition containing: (A) a (meth)acrylate oligomer having at least four functional groups and a molecular weight of 10,000-70,000; (B) a monofunctional (meth)acrylate monomer; (C) a photoreaction initiator; (D) a tackifier having a softening point of 70-150°C; and (E) a liquid plasticizer. La présente invention concerne une composition adhésive photodurcissable qui permet d'obtenir un stratifié ayant la même force adhésive quand il est exposé à la lumière en présence d'oxygène que quand il est exposé à la lumière en l'absence d'oxygène, ladite composition contenant : (A) un oligomère de (méth)acrylate ayant au moins quatre groupes fonctionnels et un poids moléculaire de 10 000 à 70 000; (B) un monomère de (méth)acrylate monofonctionnel; (C) un initiateur de photoréaction; (D) un tackifiant ayant un point de ramollissement de 70 à 150°C; et (E) un plastifiant liquide. 　本発明は、酸素存在下で光照射した場合でも、酸素が存在しない場合と同等な接着強度を有する積層体を与える、光硬化型接着組成物であり、（Ａ）分子量が１０，０００～７０，０００である、４官能以上の（メタ）アクリレートオリゴマー、（Ｂ）単官能（メタ）アクリレートモノマー、（Ｃ）光反応開始剤、（Ｄ）軟化点が７０～１５０℃の粘着付与剤、及び（Ｅ）液状可塑剤を含む、光硬化型接着組成物に関する。