POLYMER COMPOSITION FOR MANUFACTURING SMALL TO MEDIUM-SIZED CONTAINER INCLUDING HIGH-DENSITY POLYETHYLENE RECOVERED FROM SECONDARY BATTERY SEPARATOR AND SMALL TO MEDIUM-SIZED CONTAINER MANUFACTURED FROM POLYMER COMPOSITION

• Main Authors: HONG DAE SIG, KANG SANG MOOK, LEE HYE JIN, PARK JONG SANG
• Format: Patent
• Language: English; Japanese
• Published: 01.03.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a polymer composition for manufacturing small to medium-sized container which comprises a high-density polyethylene recovered from a secondary battery separator and has excellent mechanical properties.SOLUTION: There is provided a polymer composition for manufacturing a small to medium-sized container which comprises a first high-density polyethylene recovered from a secondary battery separator and a second high-density polyethylene having a density of 0.930 to 0.970 g/cm3, and satisfies a following equation. (In the formula 1, x and y are the weight percentages of the first and second high-density polyethylene in the polymer composition, respectively, and MIa and MIb are the melt flow index of the first and second high-density polyethylene, respectively, the melt flow index being measured according to ASTM D1238 (190°C, 2.16 kg).SELECTED DRAWING: Figure 1 【課題】二次電池のセパレータから回収した高密度ポリエチレンを含み、優れた機械的物性を有する、中小型容器製造用の高分子組成物を提供する。【解決手段】二次電池のセパレータから回収した第１高密度ポリエチレンと、密度が０．９３０～０．９７０ｇ／ｃｍ３である第２高密度ポリエチレンとを含み、下記式を満たす、中小型容器製造用の高分子組成物とする。TIFF2024028226000015.tif13169（上記式１において、ｘ及びｙは、それぞれ、高分子組成物における前記第１及び第２の高密度ポリエチレンの重量百分率であり、ＭＩａ及びＭＩｂは、それぞれ、前記第１及び第２の高密度ポリエチレンのメルトフローインデックスであり、前記メルトフローインデックスは、ＡＳＴＭ Ｄ１２３８（１９０℃，２．１６ｋｇ）に準じて測定したものである。）【選択図】図１