Patent ID: 6092931
Filing Date: 2000-07-25
Classification: B29C,B29K,B29L,B65D,Y10S

Abstract:
A resealable package comprising:(a) a package surrounding wall having first and second side edges and a mouth therebetween; said mouth providing access to a package interior;(b) a recloseable zipper along said mouth for selective opening and closing of said mouth; said zipper including first and second closure profiles;(i) said first closure profile consisting essentially of a base strip, a heat insulating layer, and an attachment layer;(A) said base strip having first and second opposite sides, a width, and an interlocking closure member projecting from said first side;(B) said heat insulating layer having first and second opposite sides;(1) said first side of said heat insulating layer being secured to said second side of said base strip;(2) said heat insulating layer being constructed of a material selected from the group consisting of polyethylene, polypropylene, fractional-melt high molecular weight polyolefins, and talc-filled compositions of polyolefins;(3) said heat insulating layer extending across the width of the base strip including directly behind said interlocking closure member;(C) said attachment layer having first and second opposite sides;(1) said first side of said attachment layer being secured to said second side of said heat insulating layer;(2) said second side of said attachment layer being secured to said package surrounding wall;(3) said attachment layer being constructed of polyethylene having a softening point lower than a softening point of said heat insulating layer; and(4) said attachment layer having first and second segments extending across two portions of the width of said base strip with a space therebetween; said space being directly behind said interlocking closure member.