Coated sheet materials and packages made therewith

Details Coated sheet materials and packages made therewith Coated sheet materials and packages made therewith

2005-11-18

2009-02-17

Miggins, Michael C (Department: 1794)

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

C428S035700, C206S204000, C206S484100, C206S524400, C383S102000, C383S105000

Reexamination Certificate

active

07491433

ABSTRACT:
A coated porous sheet material comprising a gas permeable sheet material selected from the group consisting of flash spun plexifilamentary nonwoven sheet, spunbonded-film-spunbonded composite sheet, spun-laced polyester/wood pulp composite sheet and paper and a polymeric coating on at least one side thereof, wherein the permeability of the coated sheet material is substantially equivalent to the permeability of an equivalent sheet material without the coating. The coated porous sheet material is suitable for use in heat sealable packages.

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R. E. Ellwanger, M. G. Mikhael, A. Yializis, A. Boufelfel, Vacuum Functionalization of Web Surfaces via Plasma Treatment & Polymer Coating, Vacuum & Coating Technology, Feb. 2001, pp. 22-29, vol. 2 No. 2.

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