Film and blends of polyetheramide block copolymer and ethylene v

Details Film and blends of polyetheramide block copolymer and ethylene v Film and blends of polyetheramide block copolymer and ethylene v

1985-06-21

1988-01-05

Schofer, Joseph L.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

4284744, 4284755, 4284758, 428910, 264176R, 26433115, 264171, 525 58, 525 92, 525926, B32B 2708, B32B 2728, C08L 2904, C08L 5300

Patent

active

047176180

ABSTRACT:
Ethylene vinyl alcohol copolymer is blended with polyetheramide block copolymer to form a novel composition of matter. The blended composition can be extruded and/or coextruded to make packaging films. In the most preferred embodiments, the blend is contained as one layer in a film comprising a multiplicity of layers, and at least the blend layer is molecularly oriented. Methods of making the films are also disclosed.

REFERENCES:
patent: 3440316 (1969-04-01), Miyake et al.
patent: 3594266 (1971-07-01), Okazaki et al.
patent: 4082854 (1978-04-01), Yamada et al.
patent: 4238582 (1980-12-01), Deleens et al.
patent: 4347332 (1982-08-01), Odorzynski et al.
Deleens, "A New Generation of Thermoplastic Elastomers the Polyether Block Amide (PEBA)", presented at 39th Ann. Tech. Conf. of SPE, Boston, Mass., May 4-7, 1981.
Technical Bulletin on Polyether Block Amides (PEBA) Ato Chimie, Paris, Fr (1982).

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