PROCESS FOR PREPARING HIGH DENSITY POLYETHYLENE RESIN HAVING HIGH MELTING TENSION

PURPOSE: A producing method of high density polyethylene is provided to secure the high parison stability, and to prevent the thickness deviation of the upper side and the lower side of a molded product using the polyethylene. CONSTITUTION: A producing method of high density polyethylene comprises t...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, JONG IL, KIM, SONG HO, SEO, SUNG SIK, JEONG, SEUNG MOON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE: A producing method of high density polyethylene is provided to secure the high parison stability, and to prevent the thickness deviation of the upper side and the lower side of a molded product using the polyethylene. CONSTITUTION: A producing method of high density polyethylene comprises the following steps: dispersing 0.001~2.5 parts of peroxide by weight to 100 parts of low density polyethylene by weight with the density of 0.900~0.925 grams per cc; cross-linking the low density polyethylene in which the peroxide is dispersed; mixing 100 parts of high density polyethylene resin by weight with the density of 0.935~0.965 grams per cc produced by a ziegler-natta catalyst, and 1~45 parts of the cross-linked low density polyethylene by weight; and melt-extruding the mixture from the previous step.