Patent ID: 11897683
Assignee: BERRY GLOBAL, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  A | IPC A  B

Claim 14:
15. A method of producing a multi-layer sheet, comprising,
extruding an insulative cellular non-aromatic polymeric material, and
coupling a film layer to the insulative cellular non-aromatic polymeric material to form the multi-layer sheet,
wherein the step of coupling comprises extruding a polymeric-lamination layer between the insulative cellular non-aromatic polymeric material and the film layer, and
wherein the polymeric-lamination layer extends between and interconnects the insulative cellular non-aromatic polymeric material and the film layer, wherein the polymeric-lamination layer is substantially free of an adhesive,
wherein the film layer is a biaxially oriented polypropylene film,
wherein the polymeric-lamination layer comprises a polypropylene and regrind,
wherein the regrind is about 0.05% to about 99.5% by weight of the polymeric-lamination layer,
wherein the multi-layer sheet comprises an ink layer printed on the film layer,
wherein the insulative cellular non-aromatic polymeric material comprises about 40% to about 99.5% by weight of a base resin blend, and up to about 50% by weight of regrind, the base resin blend comprising a first polypropylene and a second polypropylene, and
wherein the regrind comprises ink and regrind of the multi-layer sheet.