Polyester film having improved oxygen barrier and...

Details Polyester film having improved oxygen barrier and... Polyester film having improved oxygen barrier and...

2007-07-03

2007-07-03

Tran, Thao (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyester

C428S474400, C428S475200, C427S133000

Reexamination Certificate

active

10757746

ABSTRACT:
Biaxially oriented polyester films which have a polyester-containing base layer (B) which additionally comprises poly(m-xyleneadipamide) and at least one overlayer (A), and whose average roughness is preferably from 10 to 100 nm and whose gloss is greater than 100, feature improved optical properties and very good barrier properties, especially toward passage of oxygen, and are therefore suitable as packaging materials for foods or other consumable items.

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XP002276539 Abstract, A, Toyobo KK, Nov. 16, 1983.
XP002276540 Abstract, A, Unitika Ltd., Jan. 9, 2001.

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