Multilayered container
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsSenzo Shimizu, Yoshiaki Momose, Yozo Yoshida
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Abstract
A biaxially oriented multilayered container consisting of a body portion and a mouth portion. The body portion comprises one or more layers of a thermoplastic gas-barrier resin B and layers of a thermoplastic resin A other than the resin B which are larger in number than the resin B layers by 1, the resin A and B layers being laminated alternately, and at least the open end part of said mouth portion is composed of a single layer of the resin A. As a characteristic feature, a coarsely mixed resin layer of resins A and B in which the proportion of resin particles having a long diameter of not more than 10 .mu.m is not more than 10% exists in at least one of the boundaries between the resin A and B layers.
Claims9
A biaxially oriented multilayered container consisting of a body portion and a mouth portion, said body portion comprising one or more layers of a thermoplastic gas-barrier resin (resin B) and layers of a thermoplastic resin (resin A) other than the resin B, the number of the resin A layers being larger than that of the resin B layers by one, said resin A and B layers being laminated alternately, and at least the open end part of said mouth portion being composed of a single layer of the resin A;
- wherein a coarsely mixed resin layer of resins A and B in which the proportion of resin particles having a long diameter of not more than 10 .mu.m is not more than 10% exists in at least one of the boundaries between the resin A and B layers.
Dependencies are inferred from the claim text.