Containers having improved gas barrier properties

Details Containers having improved gas barrier properties Containers having improved gas barrier properties

1983-04-25

1986-01-21

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525411, 525450, C08L 6702, C08L 6704

Patent

active

045658510

ABSTRACT:
The present invention provides polymer blend compositions which are useful in the formation of containers having improved resistance to gas permeability. The polymer blend compositions comprise about 5 to 50 percent by weight of a first polyester comprising polyglycolic acid and correspondingly about 50 to 95 percent by weight of a second polyester. The second polyester comprises units derived from a diacid component comprising terephthalic acid and units derived from a diol component which preferably comprises ethylene glycol. The containers which are provided by the present invention may be in the form of sheet, film, molded articles, such as bottles, and other such structures.

REFERENCES:
patent: 3835089 (1974-09-01), Fox
patent: 3890283 (1975-06-01), Casey
patent: 3892821 (1975-07-01), Koleske
patent: 4137921 (1979-02-01), Okuzumi

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