초록 ▼

A disposable or reusable and reclosable thermoplastic bag capable of being compactly stored as a food container in freezers, yet capable of standing with an upright spout in a microwave oven for non-spill thawing and cooking of food contained in the bag. The bag is formed of two wing-shaped pouches

A disposable or reusable and reclosable thermoplastic bag capable of being compactly stored as a food container in freezers, yet capable of standing with an upright spout in a microwave oven for non-spill thawing and cooking of food contained in the bag. The bag is formed of two wing-shaped pouches on either side of the upright spout. The preferred closure is a zipper type which can automatically vent upon softening of its thermoplastic structure during the cooking stage. The bag preferably has inner and outer skin layers of different heat-softening temperature responses so that peripheral sealing is effected only with the inner layers, allowing the wing-shaped pouches to be formed out of a gussetted bottom without sealing of the outer layer plies facing one another.

대표청구항 ▼

A flexible container of thermoplastic film, said film comprised of an inner layer and an outer layer, said film folded upon itself and gussetted at its bottom so that surfaces of the inner layer face one another, the gussetted bottom comprising the major portion of the bag, the facing surfaces of th

A flexible container of thermoplastic film, said film comprised of an inner layer and an outer layer, said film folded upon itself and gussetted at its bottom so that surfaces of the inner layer face one another, the gussetted bottom comprising the major portion of the bag, the facing surfaces of the inner layer at the margins of the film sealed together to close the sides of the container, said gussetted bottom forming adjacent wing pouches, said film above said gussetted bottom comprising a minor portion of said container and forming a central neck having a channel permitting access into said wing pouches, said neck being of sufficient height for filling, folding and using while maintaining a spill-free, lay-flat bag configuration.