IT1089826B - Plastics containers with composite walls - comprising a low permeability layer backed by a scavenger filled layer - Google Patents

Plastics containers with composite walls - comprising a low permeability layer backed by a scavenger filled layer

Info

Publication number
IT1089826B
IT1089826B IT5084777A IT5084777A IT1089826B IT 1089826 B IT1089826 B IT 1089826B IT 5084777 A IT5084777 A IT 5084777A IT 5084777 A IT5084777 A IT 5084777A IT 1089826 B IT1089826 B IT 1089826B
Authority
IT
Italy
Prior art keywords
layer
low permeability
scavenger
containers
barrier
Prior art date
Application number
IT5084777A
Other languages
Italian (it)
Original Assignee
Valyi Emery I
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/743,644 external-priority patent/US4092391A/en
Application filed by Valyi Emery I filed Critical Valyi Emery I
Application granted granted Critical
Publication of IT1089826B publication Critical patent/IT1089826B/en

Links

Abstract

Plastic containers are moulded with composite walls including one layer which is a low permeability barrier for some gaseous species, e.g. O2, and a complementary layer incorporating dispersion of a chemical scavenger for the same species. Used for preventing entry or escape of the gaseous material relative to the inside of the container. The barrier layer is located nearest the face exposed to the gaseous concn. the scavenger filled layer being positioned to trap any of the species which permeates the barrier. For protecting oxidisable foods or preventing taint transfer, the composite wall structure reduces the apparent permeability of plastic walled containers by comparison with e.g. glass or metal containers.
IT5084777A 1976-11-22 1977-09-01 Plastics containers with composite walls - comprising a low permeability layer backed by a scavenger filled layer IT1089826B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/743,644 US4092391A (en) 1976-07-30 1976-11-22 Method of making multilayered containers

Publications (1)

Publication Number Publication Date
IT1089826B true IT1089826B (en) 1985-06-18

Family

ID=24989583

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5084777A IT1089826B (en) 1976-11-22 1977-09-01 Plastics containers with composite walls - comprising a low permeability layer backed by a scavenger filled layer

Country Status (1)

Country Link
IT (1) IT1089826B (en)

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