Appeal No. 1998-2317
Application No. 08/327,601
APPENDIX
1. A pouch or container for forming an envelope to
protectively package a product such as a flowable or solid food
substance, said envelope being formed of two superposed panels
marginally sealed to better define a pocket to accommodate said
product, each panel being fabricated from a laminate sheeting
comprising:
A. an outer ply of oriented synthetic plastic film having
a glass transition temperature and a first surfaces which is
are corona-discharge treated to render it wettable and receptive
to a waterbased adhesive; and
B. an inner ply of synthetic plastic film having a lower
glass transition temperature than the glass transition
temperature of the outer ply, the inner ply further having a
first surface that faces the first surface of the outer ply,
with the first surface of the inner ply being corona-discharge
treated to render it wettable and receptive to a water-based
adhesive, and further being adhesively cold laminated by a
water-based adhesive to the first surface of the outer ply at
ambient temperature to produce a laminate having high tensile
strength and tear resistance, whereby when w the two panels are
superposed, the inner plies are then in contact with each other,
and when the superposed panels are marginally sealed together by
heat and pressure applied thereto, the inner plies are then
caused to fuse but the outer plies are unaffected by the heat
and the orientation of the outer plies is unaffected.
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