초록 ▼

A container comprising a non-deformable shell under ordinary stresses made from at least two cooperating parts which together constitute said shell, said shell being lined internally with and thermoplastically fused with a lining made of a liquid-impermeable thermoplastic material and a method of ma

A container comprising a non-deformable shell under ordinary stresses made from at least two cooperating parts which together constitute said shell, said shell being lined internally with and thermoplastically fused with a lining made of a liquid-impermeable thermoplastic material and a method of making said container, comprising (a) introducing at least two cooperating parts which together constitute a non-deformable shell under ordinary stresses into molding tool members which each have a contour corresponding to at least a portion of the outer surface of each part of the shell, (b) bringing the parts together, (c) applying a substantially even film of thermoplastic material at an elevated temperature and in an at least plastic state to the inner surface of the parts to produce on the internal surface of the wall of the shell a lining, which is liquid-impermeable and thermoplastically fused to the shell when the container is at ambient temperature, and (d) removing the container from the molding tool members.

대표청구항 ▼

A necked container comprising an outer shell and a one-piece inner liner, said outer shell consisting of two mated parts formed from a material selected from the group consisting of cellulose, pasteboard, cardboard and a mixture thereof, said parts being abutted together at a mating seam, said liner

A necked container comprising an outer shell and a one-piece inner liner, said outer shell consisting of two mated parts formed from a material selected from the group consisting of cellulose, pasteboard, cardboard and a mixture thereof, said parts being abutted together at a mating seam, said liner being a liquid-impermeable thermoplatic material and being thermoplastically bonded to said mated parts to fuse said mating parts together, said shell being that component of said container that lends structural rigidity thereto.