Plastic containers embodying a peel seal and method of preparing

Details Plastic containers embodying a peel seal and method of preparing Plastic containers embodying a peel seal and method of preparing

1987-06-03

1988-09-20

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

156334, 2064842, 2291231, 22912535, B65D 134

Patent

active

047719354

ABSTRACT:
A polyolefin 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 first and second polyolefin resins, the second polyolefin resin having a melt flow rate at least about three times greater than the melt flow rate of the first polyolefin resin.

REFERENCES:
patent: 4046945 (1977-09-01), Baxmann et al.
patent: 4198369 (1980-04-01), Yoshikawa et al.
patent: 4211811 (1980-07-01), Bordini et al.
patent: 4221696 (1980-09-01), Cook et al.
patent: 4258855 (1981-03-01), Gordon
patent: 4358493 (1982-11-01), Ohtsuki et al.
patent: 4689099 (1987-08-01), Ito et al.

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