Peelable and heat sealable lidstock material for plastic contain

Details Peelable and heat sealable lidstock material for plastic contain Peelable and heat sealable lidstock material for plastic contain

1995-06-07

1997-05-06

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 357, 428 663, 428344, 428403, 428461, 428463, 428483, 428522, 428523, 428355AC, 220359, 215232, B65D 4120

Patent

active

056269293

ABSTRACT:
A peelable and heat sealable lidstock material comprises a metal or polymer substrate laminated with a film comprising a mixture of a butene-1 and ethylene copolymer, an ethylene homopolymer or copolymer, an inorganic filler and optionally, a propylene homopolymer or copolymer. The filler makes up at least about 18 wt. % of the mixture and is preferably talc having an average particle size of about 1-2 microns and a carboxylic acid surface coating.

REFERENCES:
patent: 4711673 (1987-12-01), Musselman et al.
patent: 4810541 (1989-03-01), Newman et al.
patent: 4857369 (1989-08-01), Oehlenschlaeger et al.
patent: 4916190 (1990-04-01), Hwo
patent: 5036140 (1991-07-01), Hwo
patent: 5061532 (1991-10-01), Yamada
patent: 5087667 (1992-02-01), Hwo

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