Title:
POLYETHYLENE ARTICLES WITH IMPROVED RESISTANCE TO POLYETHYLENE ARTICLES WITH IMPROVED RESISTANCE TO WATER VAPOR TRANSMISSION WATER VAPOR TRANSMISSION
Document Type and Number:
WIPO Patent Application WO1996019527
Kind Code:
A3
Abstract:
Films, containers made of high density polyethylene, and articles made therefrom exhibit, for a given density, improved resistance to water vapor transmission. The high density polyethylenes are produced in a metallocene-catalyzed production process. Alternatively, for equivalent water vapor transmission rates (WVTR) an article formed in accordance with the invention will exhibit improved physical properties, such as dart drop impact, more balanced tear properties and improved machine direction (MD) tear properties. Additionally, these high density polyethylenes show a low level of extractables and an excellent organoleptic profile.
Inventors:
DAVIS DONNA S
Application Number:
PCT/US1995/016570
Publication Date:
August 22, 1996
Filing Date:
December 20, 1995
Export Citation:
Assignee:
EXXON CHEMICAL PATENTS INC (US)
International Classes:
A23L3/00; B32B27/32; B65D81/24; C08J5/18; C08L23/08; C09K3/10; (IPC1-7): C08J5/18; B32B27/32
Domestic Patent References:
| WO1995002630A1 | 1995-01-26 |
Foreign References:
| EP0539047A1 | 1993-04-28 | |||
| EP0310290A1 | 1989-04-05 | |||
| EP0487749A1 | 1992-06-03 | |||
| US5153039A | 1992-10-06 |
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