Highly transparent thermoforming film with a heat sealing layer

Details Highly transparent thermoforming film with a heat sealing layer Highly transparent thermoforming film with a heat sealing layer

1996-04-26

1999-08-10

Nakarani, D. S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

4284235, 4284248, 4284758, 4284761, 4284763, 4284769, B32B 2732, B32B 2734

Patent

active

059356979

ABSTRACT:
The present invention relates to a highly transparent, sterilisation-resistant film, optionally containing polyamide, with elevated mechanical strength, which is thermoformable and heat-sealable, which film contains at least one layer of a polymer blend prepared from polypropylene (PP) and linear low density polyethylene (LLDPE), wherein the proportion of PP in the polymer blend is 81 to 99.8 wt. % and the proportion of LLDPE is 0.2 to 19 wt. % and the LLDPE has a density of between 915 and 950 kg/m.sup.3, preferably of 925 to 940 kg/m.sup.3.

REFERENCES:
patent: 4540416 (1985-09-01), Hattori et al.
patent: 4617240 (1986-10-01), Krueger et al.
Derwent Abstracts, AN 94-299929, Abstract of JP 06-228,382, Aug. 16, 1994.

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