Copolyester/polyamide blend having improved flavor retaining pro

Details Copolyester/polyamide blend having improved flavor retaining pro Copolyester/polyamide blend having improved flavor retaining pro

1992-05-18

1993-11-30

Foelak, Morton

Stock material or miscellaneous articles

Composite

Of polyester

125425, 128502, 264523, B32B 2706, B32B 2736

Patent

active

052664139

ABSTRACT:
This invention relates to a copolyester/polyamide blend having an improved flavor retaining property and clarity. More particularly, the present invention relates to an essentially noncrystalline copolyester containing poly(ethylene terephthalate) units blended with a critical amount of a nonhydroxyfunctional polyamide. The use of a nonhydroxyfunctional polyamide in a critical amount reduces the concentration of acetaldehyde contained in the poly(ethylene terephthalate) copolyester, and thus, improves the storage property, flavor retaining property, and fragrance retaining property of a food or the like.

REFERENCES:
patent: 4837115 (1989-06-01), Igarashi et al.

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