Invention Grant
- Patent Title: Ethylene copolymers produced with single site catalyst
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Application No.: US16264967Application Date: 2019-02-01
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Publication No.: US11053332B2Publication Date: 2021-07-06
- Inventor: Shivendra Goyal , Bronwyn Gillon , Stephen Salomons
- Applicant: NOVA Chemicals (International) S.A.
- Applicant Address: CH Fribourg
- Assignee: NOVA Chemicals (International) S.A.
- Current Assignee: NOVA Chemicals (International) S.A.
- Current Assignee Address: CH Fribourg
- Agent Thomas J. Styslinger
- Main IPC: C08F210/00
- IPC: C08F210/00 ; C08F210/16 ; B32B27/06 ; C08L23/06 ; C08L23/08 ; C08J5/18 ; C08F4/659

Abstract:
Embodiments of the invention described herein relate to a polyethylene polymer composition suitable for use in the manufacture of packaging articles, flexible films and/or sheets. In one embodiment, the copolymer comprises a polyethylene resin with density 0.918 g/cm3 to about 0.935 g/cm3, G′ at G″(500 Pa) value, as determined from Dynamic Mechanical Analysis at 190° C., of less than 40 Pa, Mz/Mw of greater than 2, CDBI50 of greater than 60. Other embodiments relate to polymer compositions with defined molecular characteristics and formulations suitable for use in the manufacture of articles including films, sheets, bags and pouches with improved creep resistance and high toughness and a good balance of film stiffness and processability in monolayer and/or multi-layer film structures.
Public/Granted literature
- US20190161569A1 ETHYLENE COPOLYMERS PRODUCED WITH SINGLE SITE CATALYST Public/Granted day:2019-05-30
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