Stock material or miscellaneous articles – Hollow or container type article – Nonself-supporting tubular film or bag
Patent
1995-03-06
1996-05-28
Robinson, Ellis P.
Stock material or miscellaneous articles
Hollow or container type article
Nonself-supporting tubular film or bag
428 3691, 428213, 428215, 428218, 428516, 604403, 604408, 383116, B65D 3026, B32B 2732, B32B 2708
Patent
active
055209726
ABSTRACT:
A medical bag comprised of a laminate film, sheet or tube composed of three layers or more comprising an outer layer and an inner layer, at least said inner layer of said inner and outer layers in contact with a liquid contained in the bag comprises a high-density polyethylene resin having a density of 0.945 g/cm.sup.3 or more and an Mw/Mn value of 4.0 or less or a composition comprising said high-density polyethylene resin and, added thereto, less than 60% by weight of a low-density polyethylene resin having a density of 0.930 g/cm.sup.3 or less produced by a radical polymerization; and an intermediate layer comprising a composition composed of a linear, low-density polyethylene resin having a short-chain branching and a density of 0.920 g/cm.sup.3 or less and, added thereto, less than 15% by weight of a high-density polyethylene resin having a density of 0.945 g/m.sup.3 or more and an Mw/Mn value of 4.0 or less, said inner layer, intermediate layer and outer layer being in the following relationship of a thickess ratio:
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Ezaki Tomohiko
Saito Yoshimasa
Tanaka Nobuyuki
Dye Rena L.
Robinson Ellis P.
Showa Denko K.K.
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