Illinois Tool Works Inc.

Ernesto L Pitargue

Glyn Russell

David J Anzini

Rusty Koenigkramer

Edward Babcock, Iii

Arthur A Bucci

The present disclosure relates to the use of first and second adhesives for the attachment of zipper flanges to reclosable packages. A first adhesive is typically a reactive, cross-linkable hot melt adhesive while the second adhesive is typically non-cross-linkable hot melt adhesive, typically, but not limited to, either EVA-based or polyamide-based. Alternatively, the second adhesive can be a coextrusion layer including a resin that is typically used as a sealant layer in zipper extrusion, such as metallocene type linear low density polyethylene.

Dual hot melt adhesive systems

The present disclosure relates to a slider zipper including first and second interlocking profiles with female and male interlocking elements. The female interlocking element is formed from two extending arms which are sufficiently spaced so as to receive the male interlocking element while maintaining an open space therebetween in order to accommodate powdered or granular products between the interlocking profiles. The first and second interlocking profiles further include complementary fulcrum elements to allow the slider walls to pivot the interlocking profiles into and out of engagement. The slider further includes interior surfaces which engage retaining shoulders of the interlocking profiles to displace the interlocking profiles with respect to one another.

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Carmel, NY, United States of America

Ernesto L Pitargue