Method of preventing a container from becoming colored by the co

Details Method of preventing a container from becoming colored by the co Method of preventing a container from becoming colored by the co

1996-08-06

1999-03-02

Kemmerer, Elizabeth

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 359, 428 357, 428 3691, 428516, 428517, 428518, 428520, 428910, B29D 900, B65D 6502

Patent

active

058768149

ABSTRACT:
A method of preventing a container from becoming colored by contents of the container in a packaging process comprising filling and sealing colored contents in a packaging container having an inner surface comprising a plastic material and then disinfecting and sterilizing the contents by heat treatment, wherein said inner surface plastic material comprises a thermoplastic resin having a glass transition temperature (Tg) 10.degree. C. or more higher than the temperature of said heat treatment and a coefficient of moisture permeability at 40.degree. C. and 90% RH of 2.0 g.mm/m.sup.2.24 hr or less.

REFERENCES:
patent: 5218049 (1993-06-01), Yamamoto et al.
patent: 5221566 (1993-06-01), Tokoh et al.
patent: 5532030 (1996-07-01), Hirose et al.

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