이축 배향 필름

• Main Authors: AUBEE NORMAN, GILLON BRONWYN, TAYLOR JARED, GOYAL SHIVENDRA, LIGHTBODY OWEN, CARELLO CHRISTIAN, FEREYDOON MARYAM
• Format: Patent
• Language: Korean
• Published: 26.12.2023
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

이축 배향 폴리에틸렌 필름 구조는 코어 층을 포함하는 적어도 3개의 층을 포함하고, 여기서 코어 층은 i) 0.940 g/cm3 초과의 밀도를 갖는 에틸렌 공중합체인 제1 폴리에틸렌 50 내지 99.5 중량%; 및 ii) 적어도 0.950 g/cm3의 밀도를 갖는 폴리에틸렌 단일중합체 조성물인 제2 폴리에틸렌 0.5 내지 50 중량%를 포함하고; 여기서 폴리에틸렌 단일중합체 조성물은 핵형성제 또는 핵형성제의 혼합물을 추가로 포함한다. 이축 배향 필름은 매우 우수한 광학 특성을 갖는다. A biaxially oriented polyethylene film structure comprises at least three layers, wherein three adjacent layers each comprise: i) from 50 to 99.5 weight percent of a first polyethylene which is an ethylene copolymer having a density of greater than 0.940 g/cm3; and ii) from 0.5 to 50 weight percent of a second polyethylene which is a high density polyethylene having a density of at least 0.950 g/cm3; wherein the high density polyethylene further comprises a nucleating agent or a mixture of nucleating agents. The biaxially oriented film has very good optical properties.