Molded container having wall composed of oriented resin blend

Details Molded container having wall composed of oriented resin blend Molded container having wall composed of oriented resin blend

1976-12-14

1981-04-14

Dixon, Jr., William R.

Bottles and jars

Ejecting

Siphon type

264532, 264 73, 264544, 264512, 428 35, 428411, 428412, 428413, 4284744, 4284747, 4284752, 4284763, 4284769, 4284774, 428480, 428483, 428500, 428501, 428515, 428517, 428518, 428519, 428520, 428521, 428522, 428523, 428910, B65D 2300, B32B 2708, B32B 2730, B32B 2736

Patent

active

042614732

ABSTRACT:
A molded container having a wall composed of a thermoplastic resin oriented in at least one direction on the wall face, wherein the container wall has a layer of a blend composed mainly of a plurality of melt-extrudable thermoplastic resins, each of which has a solubility parameter (Sp) of at least 9.5, at least one of said thermoplastic resins has an oxygen permeability lower than 5.times.10.sup.-11 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg, said thermoplastic resins are chosen so that the difference (.DELTA.Sp) of the solubility parameter in said thermoplastic resins is not greater than 4.5, the elongation of said resin blend is higher than the arithmetic mean (.epsilon.) of elongations of the respective thermoplastic resins, and wherein the container has a thermal shrinkability (.delta.) of at least 5% in the orientation direction of said container wall.

REFERENCES:
patent: 3288317 (1966-11-01), Wiley
patent: 3757978 (1973-09-01), Gilbert
patent: 3837517 (1974-09-01), Held, Jr.
patent: 3857754 (1974-12-01), Hirata et al.
patent: 3931449 (1976-01-01), Hirata et al.
patent: 3932692 (1976-01-01), Hirata et al.
patent: 3934743 (1976-01-01), McChesney et al.
patent: 3955697 (1976-05-01), Valyi
patent: 4182457 (1980-01-01), Yamada et al.

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