초록 ▼

A multi-ply laminated wall structure, especially for a bag for popping popcorn in a microwave oven, has at least two plies of paper secured together with spaced patches of adhesive to form a unitary laminated structure that has greater flexibility and lower cost than a conventional bag wall. The adh

A multi-ply laminated wall structure, especially for a bag for popping popcorn in a microwave oven, has at least two plies of paper secured together with spaced patches of adhesive to form a unitary laminated structure that has greater flexibility and lower cost than a conventional bag wall. The adhesive covers from about 25% up to about 60% of the confronting area between the plies, and the unsecured areas between the patches of adhesive are in communication with one another. The outer ply is gas permeable so that gas is permitted to escape from between the plies, and any moisture between the plies escapes through the unsecured areas between the patches of adhesive at the ends of the laminated structure.

대표청구항 ▼

[ What is claimed is:] [1.] A bag having a multi-ply laminated wall structure, comprising:at least two plies of paper secured together with spaced patches of adhesive distributed over the area between the plies, said spaced patches of adhesive covering from about 25% up to about 60% of the confronti

[ What is claimed is:] [1.] A bag having a multi-ply laminated wall structure, comprising:at least two plies of paper secured together with spaced patches of adhesive distributed over the area between the plies, said spaced patches of adhesive covering from about 25% up to about 60% of the confronting area between the plies to form a unitary, multi-ply, laminated wall structure having unsecured areas between the plies, said unsecured areas being in communication with one another and including unsecured areas between the plies through at least one end of the wall structure, whereby any moisture between the plies can escape through the unsecured areas between the plies at said at least one end of the laminated wall structure; andan outer of said plies is gas permeable so that gas can escape therethrough from between the plies to prevent separation of the plies and expansion of the unsecured areas.