Adhesive composition adhesive layer surface protecting film and optical member

• Main Authors: OGAWA, KEITA, YAMAGATA, MASATO, KATAOKA, KENICHI, AMANO, TATSUMI, NATSUI, MASATOMO
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2018
• 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; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

An objective of the present invention is to provide: an adhesive composition capable of obtaining an excellent adhesive layer having a sufficiently long usable time of the adhesive composition, and having superior antistatic properties by suppressing color change of the adhesive layer; the adhesive layer obtained by crosslinking the adhesive composition, and a surface protecting film obtained by forming the adhesive layer on a support; and an optical member protected by the surface protecting film. The adhesive composition of the present invention contains: (B) an isocyanate-based crosslinking agent; (C) 0.001 to 0.4 parts by mass of a compound having tin as an active center; (D) 0.001 to 0.4 part by mass of a compound containing iron as an active center; and (E) an antistatic agent, for 100 parts by mass of a polymer having active hydrogen-containing functional groups (A).