Stock material or miscellaneous articles – Sheet including cover or casing – Filled with gas other than air; or under vacuum
Patent
1978-07-31
1979-10-30
Lesmes, George F.
Stock material or miscellaneous articles
Sheet including cover or casing
Filled with gas other than air; or under vacuum
52406, 428 75, 428461, 428516, 428920, 418483, B32B 104, B32B 302, B32B 1508
Patent
active
041729153
ABSTRACT:
A hermetically sealed pouch encloses both a porous mass of material of relatively low heat conductivity and a charge of a gas having a coefficient of thermal conductivity lower than that of air and thoroughly permeating the porous mass of material. The pouch is constructed of confronting sheets of multi-ply laminate material sealed along free edge portions thereof, and comprising an inwardly facing sealing layer of 15 pounds per ream low density polyethylene, a layer of 0.5 pounds per ream vinyl primer, a layer of 0.35 mil aluminum foil, a layer of 9 pounds per ream white low density polyethylene, and an outwardly facing layer of polymeric material selected from the group consisting of polyester and oriented polypropylene.
REFERENCES:
patent: 2779066 (1957-01-01), Gaugler et al.
patent: 2817123 (1957-12-01), Jacobs
patent: 2817124 (1957-12-01), Dybvig
patent: 2863179 (1958-12-01), Gaugler
patent: 2939811 (1960-06-01), Dillon
patent: 2966439 (1960-12-01), Sorel
patent: 3004877 (1961-10-01), Simms et al.
patent: 3264165 (1966-08-01), Stickel
patent: 4054711 (1977-10-01), Bolsolas
Dewine James E.
Sheptak Nicholas
American Can Company
Auber Robert P.
Dorman Ira S.
Hargis, III Harry W.
Lesmes George F.
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