Production of multilayer containers

Details Production of multilayer containers Production of multilayer containers

B - Operations, Transporting

29

C

18/1071

B29C 51/02 (2006.01) B29C 51/14 (2006.01) B32B 27/08 (2006.01)

Patent

CA 1281874

K 4872 A B S T R A C T PRODUCTION OF MULTILAYER CONTAINERS A process for making multilayer containers, which comprises the steps of: a) producing multilayer billets comprising at least one layer of a barrier polymer; b) producing monolayer sheet of polypropylene; c) heating said monolayer sheet and said billets to a temperature where the mating surfaces of both said sheet and said billets are at or above the fusion temperature of said mating surfaces; d) placing said billets on said sheet, while maintaining said billets and said sheet at or above the mating surface fusion temperature so that said billets and said sheet are welded together; and e) forming containers from said welded billets and sheet, leaving a web of monolayer polypropylene sheet and reprocessing this web into either production of billets or monolayer sheet. EGRHO4

534209

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