Tear-resistant low set elastic film and method of making
AssigneeTredegar Film Products Corporation
InventorsJeffrey A. Middlesworth, James W. Cree, Steve D. Bruce
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AssigneeTredegar Film Products Corporation
InventorsJeffrey A. Middlesworth, James W. Cree, Steve D. Bruce
Estimating the term…
A tough low set elastic film exhibiting surprisingly high tear resistance and method of making the same. The film of the invention is especially beneficial when holes form on the films during manufacturing or normal wear and method of making. The film has activated and non-activated zones formed during an activation process. The activated zones allow the film to expand without generating excessive tensional forces. The film has M-polypropylene or M-polyethylene skin layers and a core layer having an elastomeric polyurethane, ethylene copolymer such as ethylene vinyl acetate styrenic elastomer, an ethylene/propylene copolymer elastomer or ethylene/propylene/diene terpolymer elastomer. The activation process allows the skin layers to behave more like the core layer.
A tear-resistant low set elastic film, comprising:
A tear-resistant low set elastic film, comprising:
Dependencies are inferred from the claim text.