NOVELTY - A polyethylene is linear polyethylene which is ethylene homopolymer or copolymer containing an ethylene unit and 3-20C ( alpha )-olefin unit(s). The polyethylene has density of 940-975 kg/m3, melt flow rate of 0.1-20 g/10 minutes at 190 degrees C under load of 2.16 kg, molecular weight distribution of 3-7, content of component (x) having molecular weight of 1000 or less of 1 weight% or less, content of component (y) having molecular weight of 1000000 or more of 0.5 weight% or less, and quantity of n-heptane extraction portion of 1 weight% or less at 80 degrees C.    USE - Polyethylene is used for alcohol-resistant container for accommodating highly-purified chemical e.g. methanol, ethanol, propanol and butanol, used in fuel cell (all claimed). Uses include but are not limited to sanitary products, semiconductor device, precision-machinery-industry component, pharmaceuticals, shampoo and cosmetic container.    ADVANTAGE - The alcohol-resistant container comprising the polyethylene has favorable glossiness and suppressed elution of highly-purified chemical.    DETAILED DESCRIPTION - A polyethylene is linear polyethylene which is ethylene homopolymer or copolymer containing an ethylene unit and 3-20C ( alpha )-olefin unit(s). The polyethylene has density of 940-975 kg/m3, melt flow rate of 0.1-20 g/10 minutes at 190 degrees C under load of 2.16 kg, molecular weight distribution of 3-7, calculated by gel permeation chromatography, content of component (x) having molecular weight of 1000 or less of 1 weight% or less, content of component (y) having molecular weight of 1000000 or more of 0.5 weight% or less, number of melting point peaks in heat absorption curve formed by temperature rising measurement measured using differential scanning calorimeter of 1, quantity of n-heptane extraction portion of 1 weight% or less at 80 degrees C and content of 18-20C hydrocarbon component measured by ethanol extraction of 100 ppm or less. The content of component (x) is ratio of integration amount of component (x) with respect to total weight of polymer. The content of component (y) is ratio of integration amount of component (y) with respect to total weight of polymer. The molecular weight of component (x) and component (y) is calculated using the molecular weight distribution curve measured by gel permeation chromatography. INDEPENDENT CLAIMS are included for the following:    (1) manufacture of polyethylene, which involves polymerizing using metallocene supported catalyst and liquid co-catalyst component. The metallocene supported catalyst contains carrier substance, organoaluminum, transition metal compound having cyclic bindable anion ligand and activator which forms complex which reacts with the transition metal compound and has catalyst activity; and    (2) alcohol-resistant container, which consists of the polyethylene.