EP 3830186 A1 20210609 - POLYETHYLENE COMPOSITION HAVING IMPROVED ENVIRONMENTAL STRESS CRACKING RESISTANCE
Title (en)
POLYETHYLENE COMPOSITION HAVING IMPROVED ENVIRONMENTAL STRESS CRACKING RESISTANCE
Title (de)
POLYETHYLENZUSAMMENSETZUNG MIT VERBESSERTER BESTÄNDIGKEIT GEGENÜBER UMGEBUNGSBEDINGTER SPANNUNGSRISSBILDUNG
Title (fr)
COMPOSITION DE POLYÉTHYLÈNE PRÉSENTANT UNE RÉSISTANCE AMÉLIORÉE À LA FISSURATION SOUS CONTRAINTE PROVOQUÉE PAR L'ENVIRONNEMENT
Publication
Application
Priority
- US 201862711096 P 20180727
- EP 2019069209 W 20190717
Abstract (en)
[origin: WO2020020716A1] A polyethylene composition having increased environmental stress crack resistance comprises a polymer blend of a high density polyethylene (HOPE) and a styrenic block copolymer (SBC). The styrenic block polymer is at least one of a non-hydrogenated styrene- isoprene-styrene (SIS) block copolymer and a styrene-butadiene-styrene (SBS) block copolymer. In a method of forming a polyethylene composition having increased environmental stress crack resistance, a high density polyethylene (HOPE) is modified by combining the HOPE with a styrenic block copolymer (SBC) of at least one of a non- hydrogenated styrene-isoprene-styrene (SIS) block copolymer and a styrene-butadiene- styrene (SBS) block copolymer.
IPC 8 full level
C08L 23/06 (2006.01); B65D 41/40 (2006.01); B67B 3/00 (2006.01)
CPC (source: EP)
C08L 23/06 (2013.01); C08L 2203/10 (2013.01); C08L 2207/062 (2013.01)
Citation (search report)
See references of WO 2020020716A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020020716 A1 20200130; CN 113195619 A 20210730; CN 113195619 B 20240112; EP 3830186 A1 20210609
DOCDB simple family (application)
EP 2019069209 W 20190717; CN 201980060534 A 20190717; EP 19742340 A 20190717