Peelably sealed plastic packages and method of preparing same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 5, 1991
Grant Date -
N/A
app pub date -
Aug 1, 1988
filing date -
Aug 1, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polypropylene container is disclosed which is hermetically sealed with a complementary lid extending across the open container the opposed faces of the container surface and the lid being bonded together by a peelable, heat seal layer intermediate between the opposed faces. The heat seal layer is comprised of a mixture of a particulate filler and an olefin polymer blend comprised of a homogeneous mixture of an olefin homopolymer, a highly crystalline propylene-ethylene block copolymer and an elastomeric ethylene-propylene copolymer.
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