BLOW MOLDING POLYMERS WITH IMPROVED CYCLE TIME, PROCESSABILITY, AND SURFACE QUALITY

Ethylene-based polymers having a density of 0.952 to 0.965 g/cm3, a high load melt index (HLMI) from 5 to 25 g/10 min, a weight-average molecular weight from 275,000 to 450,000 g/mol, a number-average molecular weight from 15,000 to 40,000 g/mol, a viscosity at HLMI from 1400 to 4000 Pa-sec, and a t...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CRUZ, CARLOS A, RUTLEDGE-RYAL, BRANDY, CHAFFIN, JAY M, HICKS, JENNIFER L, LUMBLEY, JUSTIN, RATHMAN, JOHN R, INN, YONGWOO
Format:	Patent
Sprache:	eng ; fre
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 WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Ethylene-based polymers having a density of 0.952 to 0.965 g/cm3, a high load melt index (HLMI) from 5 to 25 g/10 min, a weight-average molecular weight from 275,000 to 450,000 g/mol, a number-average molecular weight from 15,000 to 40,000 g/mol, a viscosity at HLMI from 1400 to 4000 Pa-sec, and a tangent delta at 0.1 sec-1 from 0.65 to 0.98 degrees. These polymers have the processability of chromium-based resins, but with improved stress crack resistance, and can be used in large-part blow molding applications. Polymères à base d'éthylène présentant une densité de 0,952 à 0,965 g/cm3, un indice de fusion à charge élevée (HLMI) variant de 5 à 25 g/10 min, un poids moléculaire moyen en poids variant de 275 000 à 450 000 g/mol, un poids moléculaire moyen en nombre variant de 15 000 à 40 000 g/mol, une viscosité à l'HLMI variant de 1 400 à 4 000 Pa.s, et une tangente delta à 0,1 s-1 variant de 0,65 à 0,98 degré. Ces polymères présentent l'aptitude au traitement des résines à base de chrome, mais des propriétés améliorées de résistance aux fissures de contrainte, et peuvent être utilisés dans des applications de moulage par soufflage de grandes pièces.