Blends of ethylene vinyl alcohol copolymer and polyamides, and m

Stock material or miscellaneous articles – Composite – Of polyamide

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525420, 525 58, 4284755, C08L 2902, C08L 7702

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active

052865754

ABSTRACT:
The present invention is directed to a blend comprising about 5 to about 95 percent by weight of an ethylene vinyl alcohol copolymer and about 95 to about 5 percent by weight of an amorphous nylon polyamide copolymer having a glass transition temperature in the range of about 30 to 100.degree. C. The polyamide forms separate domains when blended with the ethylene vinyl alcohol copolymer. Such a structure has been found to surprisingly provide a composition capable of stretching at temperatures less than about 110.degree. C. without incurring problems known in the art.

REFERENCES:
patent: 3726945 (1973-04-01), Bottenbruch et al.
patent: 4079850 (1978-03-01), Suzuki et al.
patent: 4427825 (1984-01-01), Degrassi et al.
patent: 4500677 (1985-02-01), Maruhashi et al.
patent: 4952628 (1990-08-01), Blatz
patent: 4990562 (1991-02-01), Chou et al.
patent: 5064716 (1991-11-01), Chou et al.
patent: 5110855 (1992-05-01), Blatz
patent: 5126401 (1992-06-01), Chou
patent: 5126402 (1992-06-01), Chou
U.S. patent application Ser. No. 07/301,473 filed Jan. 26, 1989 for this same inventor.

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