적층체 및 적층체의 제조 방법

• Main Authors: JIN ZHENGZHE, IWAMOCHI HIROTOSHI, SAKAMOTO SHINJI, SAITOU YOSHIMASA, KAWAMURA MASUMURA CHIAKI, UTO YUICHI
• Format: Patent
• Language: Korean
• Published: 03.07.2024
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; DYES; HANDLING THIN OR FILAMENTARY MATERIAL; 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; PACKAGES; PACKAGING ELEMENTS; PACKING; PAINTS; PERFORMING OPERATIONS; POLISHES; STORING; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

[해결과제] 기재 등과의 양호한 접착성과, 양호한 이인열성 등의 이개봉 취급성의 양쪽이 우수한 적층체 및 적층체의 제조 방법을 제공하는 것. [해결수단] 기재층 1(α), 수지층 (β), 접착제층 (γ) 및 기재층 2(δ)의 적어도 4층을 갖고, 기재층 1(α), 수지층 (β), 접착제층 (γ), 기재층 2(δ)가 서로 인접해서 적층되고, 수지층 (β) 및 접착제층 (γ)가 각각 하기의 특성을 충족하는 것을 특징으로 하는 적층체. 수지층 (β): (a-1) 내지 (a-4)의 특성을 갖는 에틸렌계 공중합체 (A)를 함유하는 폴리에틸렌 수지 조성물 (B)를 포함한다. 접착제층 (γ): 폴리올 화합물과 폴리이소시아네이트 화합물의 반응물을 포함한다. Provided is a laminate excellent in both adhesiveness to a substrate or the like and easy-openability such as easy-tearability, and a laminate production method.The laminate comprises at least four layers which are, respectively, a substrate layer 1(α), a resin layer (β), an adhesive agent layer (γ) and a substrate layer 2 (δ). The substrate layer 1(α), the resin layer (β), the adhesive agent layer (γ) and the substrate layer 2(δ) are laminated adjacent to one another, and the resin layer (β) and the adhesive agent layer (γ) satisfy, respectively, the following characteristics:resin layer (β): comprising a polyethylene resin composition (B) containing an ethylene-based copolymer (A) having characteristics (a-1) to (a-4), andadhesive agent layer (γ): comprising a reaction product of a polyol compound and a polyisocyanate compound.