Nylon barrier board structure

Details Nylon barrier board structure Nylon barrier board structure

2007-10-02

2007-10-02

Seidleck, James J. (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyamide

C428S475800, C428S475500, C428S479600

Reexamination Certificate

active

10431955

ABSTRACT:
A paperboard laminate useful for making gable top juice cartons is provided. The laminate provides for a high melting point polymer such as a semi-crystalline nylon to be applied directly to a board surface as an oxygen barrier layer. An anti-scalping layer is also provided by a polar polymer which is connected by a tie layer to an outermost skin coat layer. Positioned between the skin coat layer and the oxygen barrier layer are one or more bulk layers of polyolefins. The resulting laminate affords a juice carton which has good oxygen barrier and Vitamin C retention properties, is resistant to overactivation during heat sealing, has minimal scalping of d-limonene and essential oils, and has excellent bulge resistance.

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PCT/US04/14305, International Search Report, Oct. 1, 2004, 2 pages, ISA/US, Alexandria, Virginia 22313-1450 US.

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