| abstract |
The invention includes a multilayer film having at least 2 layers : (A) an adhesive layer comprising at least 40 weight percent of an ethylene/alkyl acrylate copolymer having a Vicat point (ASTM D 1525) of no more than 40 centigrade (OC), at least 1 and at most 10 weight percent of an ethylene/alpha, beta-ethylenically unsaturated carboxylic acid copolymer, and at least 20 weight percent of a low density polyethylene, and 0 to at most 7 weight percent filler, hereinafter referred to as composition A; and (C) a barrier layer comprising at least 90 weight percent high density polyethylene, hereinafter referred to as composition C, in each layer, the percentages being based upon combined weight of polymers and filler and selected to total 100 percent by weight. Preferably the film further comprises at least one layer (B) a core layer comprising at least 20 weight percent linear low density polyethylene (LLDPE), at least 20 weight percent low density polyethylene different from LLDPE, at least 10 weight percent high density polyethylene and 0 to at most 5 weight percent filler, hereinafter referred to as composition B, the percentages being based upon combined weight of polymers and filler and selected to total 100 percent by weight. Such a film is useful to protect surfaces and preferably adheres when needed for protection and is removable after protection is no longer desired. Preferably, the film curls to an extent sufficient to help protect the edges of the protected surface. |