Multilayered heat-sealable plastic films

Details Multilayered heat-sealable plastic films Multilayered heat-sealable plastic films

1995-02-14

1996-07-30

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428519, 428520, 428521, 428522, 428 368, 525 71, 525 80, 525 87, 525 89, 525 94, 525227, 5263285, 5263295, 5263297, 53477, 53485, B32B 2708, B32B 2730, C08L 5302, C08L 3310

Patent

active

055409890

ABSTRACT:
The invention relates to a recycable, heat-sealable plastic film for hermetically sealing plastic containers, comprising at least two layers which mutually adhere, (i) a support layer comprised of an impact resistant polystyrene resin and (ii) a sealing layer consisting essentially of: a) 20-100 weight % of a copolymer P consisting essentially of:
(p1) 20-90 weight % methyl methacrylate and/or ethyl methacrylate;
(p2) 10-80 weight % of at least one monomer of formula I ##STR1## where R.sub.1 represents an C.sub.3-24 alkyl group; and (p3) 0-10 weight %, preferably 1-8 weight %, of a monomer which is copolymerizable with and different from the monomers (p1) and (p2); and

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