Ethylene vinyl alcohol copolymers containing platelet-type mica

Details Ethylene vinyl alcohol copolymers containing platelet-type mica Ethylene vinyl alcohol copolymers containing platelet-type mica

1988-12-20

1991-01-08

Lilling, Herbert J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 364, 428324, 428515, 524413, 524441, 524449, 524503, B32B 522, B32B 2708, B32B 516, B27N 502

Patent

active

049834320

ABSTRACT:
A barrier resin composition is disclosed is which contains 50 to 95 weight percent ethylene/vinyl alcohol copolymer having a melt flow of 0.1 to 100 g/10 minutes as measured at 210.degree. C. and 50 to 5 weight percent mica having a particle size of less than 74 microns and an aspect ratio of from 10 to 150. The composition can be prepared by melt blending a mixture of the ethylene/vinyl alcohol copolymer and the mica. Alternatively, the composition can be prepared by forming a dispersion of this mica in a solution of the ethylene/vinyl alcohol copolymer followed by precipitating the ethylene/vinyl alcohol copolymer.

REFERENCES:
patent: 4528235 (1985-07-01), Sachs et al.
patent: 4601952 (1986-07-01), Doyle et al.
patent: 4606785 (1986-08-01), Zeise
patent: 4618528 (1986-10-01), Sachs et al.
patent: 4675235 (1987-06-01), Wu
patent: 4769276 (1988-09-01), Gruss et al.
patent: 4818782 (1989-04-01), Bissot
patent: 4906495 (1990-03-01), Martini et al.

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