Patent FR2217954A5 successfully refreshed from Google Patents.
FR2217954A5
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FR
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Thermally insulating packaging material - of polyethylene foam bonded to a stiff support
Assignee: MULLER PATRICK FR
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Filing: 1973-02-08
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Granted: 1974-09-06
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Expires: 1993-02-08
Abstract
Abstract Composite packaging material comprising a layer of non crosslinked polyethylene foam bonded to a layer of polyethylene film mounted on a stiff support pref. made of kraft paper, bleached cardboard or canvas. Alternatively the support may be of polyethylene sheet, eliminating the film interlayer. Esp. suitable for making postal or portable bags or packets by welding two layers face to face, pref. with the foam removed from a weld zone width of >=5 mm. Provides a tough pack with good thermal insulation and low-temp. flexibility.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 16:46
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B65; B65D; B65D75/00; B65D75/26; B32B27/10; B32B27/12; B32B27/32; B32B5/00; B32B5/18; B65D81/00; B65D81/38; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/025; B32B2305/00; B32B2305/02; B32B2305/022; B32B2317/00; B32B2317/12; B32B2317/122; B32B2553/00
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