Invention Grant
- Patent Title: Rotomolded articles comprising metallocene-catalyzed polyethylene resin
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Application No.: US15525669Application Date: 2015-11-10
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Publication No.: US10550251B2Publication Date: 2020-02-04
- Inventor: Aurélien Vantomme , Eric Maziers , Christopher Willocq
- Applicant: Total Research & Technology Feluy
- Applicant Address: BE Seneffe (Feluy)
- Assignee: Total Research & Technology Feluy
- Current Assignee: Total Research & Technology Feluy
- Current Assignee Address: BE Seneffe (Feluy)
- Agent Albert Shung
- Priority: EP14193020 20141113
- International Application: PCT/EP2015/076253 WO 20151110
- International Announcement: WO2016/075164 WO 20160519
- Main IPC: C08L23/08
- IPC: C08L23/08 ; B29C41/00 ; B29C41/04 ; B29L31/00

Abstract:
The present invention relates to a rotomolded article, comprising at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: at least 25% to at most 55% by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg, and a density at least 0.005 g/cm3 higher than the density of the polyethylene resin; and wherein the polyethylene resin has a density of at least 0.938 g/cm3 to at most 0.950 g/cm3 as measured according to ASTM D-1505 at 23° C.; a melt index MI2 of at least 1.0 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190° C. and under a load of 2.16 kg. The present invention also relates to a process for preparing said rotomolded article.
Public/Granted literature
- US20170321046A1 Rotomolded Articles Comprising Metallocene-Catalyzed Polyethylene Resin Public/Granted day:2017-11-09
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