Composition for a packaging film containing an additive

Details Composition for a packaging film containing an additive Composition for a packaging film containing an additive

1992-12-11

1994-04-26

Thurlow, Jeffery

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

Synthetic resins

Processes of preparing a desired or intentional composition...

428407, 525222, 525240, 525936, 264349, 264211, B32B 2718, C08K 908

Patent

active

053067452

ABSTRACT:
A composition includes a blend of an additive, such as a fungicide, encapsulated in a first thermoplastic resin and a second thermoplastic resin which has a lower melting point than the first resin. During extrusion of the blend, the second resin melts and surrounds the encapsulated additive before the first resin melts. Thus composition is especially useful in combination with a multilayer film including a core layer made up of the composition, and respective further layers laminated to each side of the core layer. These films are useful in packaging articles such as fruits and vegetables to protect them from fungal infections.

REFERENCES:
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patent: 3929724 (1975-12-01), Miyauchi et al.
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patent: 4284444 (1981-08-01), Bernstein et al.
patent: 4624814 (1986-11-01), McDougal
patent: 4828780 (1989-05-01), Luker
patent: 4895884 (1990-01-01), Benko et al.

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