Barrier compositions and film made therefrom having improved opt

Details Barrier compositions and film made therefrom having improved opt Barrier compositions and film made therefrom having improved opt

1991-09-18

1994-05-24

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

2521881, 4284235, 4284237, 502349, 502353, 525425, 525444, 528272, C08G 6302, C08G 6944, C08G 7316

Patent

active

053149874

ABSTRACT:
Novel blends of (i) PET, PBT, CoPET, CoPBT or mixtures thereof with (ii) nylon, wherein component (i) is from a catalyst system based on antimony and germanium, or has virtually no residual cobalt and manganese are disclosed and claimed. These blends have superior barrier properties and clarity. The clarity thereof is further enhanced by adding cobalt octoate to the blend. Articles from such blends are also disclosed and claimed. Novel blends of nylon and cobalt octoate which exhibit superior barrier properties are also disclosed and claimed, as well as articles therefrom. And, multilayer structures and articles therefrom having a core layer of a blend of (i) PET, PBT, CoPET, CoPBT or mixtures thereof, and, (ii) nylon, and optionally (iii) cobalt octoate, are also disclosed and claimed.

REFERENCES:
patent: 4433117 (1984-02-01), Takayanagi et al.
patent: 5021515 (1991-06-01), Cochran et al.

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