DENSITY AND CHEMICAL COMPOSITION CONTROL FOR POLYMER WITH GOOD STRESS CRACK PROPERTIES

Provided are polyethylene copolymers with improved stress crack resistance, methods for making such copolymers, and films made from the same. The polyethylene copolymers include at least 95 wt% ethylene and at most 5 wt% of at least one comonomer having 3 to 18 carbon atoms; and further have a 30% s...

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Bibliographic Details
Main Authors SHANNON, Porter, C, GUY, Nathaniel, B, ANTENSTEINER, Martin, PEQUENO, Richard, E
Format Patent
LanguageEnglish
French
German
Published 08.03.2023
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
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Summary:Provided are polyethylene copolymers with improved stress crack resistance, methods for making such copolymers, and films made from the same. The polyethylene copolymers include at least 95 wt% ethylene and at most 5 wt% of at least one comonomer having 3 to 18 carbon atoms; and further have a 30% single point notched constant tensile load of at least 1,000 hours, a density of 0.931 to 0.936 g/cm3, a melt index (I2) of 0.1 to 0.5 g/10min, and a 25-75 chemical composition distribution index of 0.3 or more.
Bibliography:Application Number: EP20210723531