Seals for plastic bags

A plastic bag comprising:

• a first and second body panels each having a top, a bottom, and first and second opposing sides, said first and second panels being joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides, said panels comprising two polymeric film layers, a first layer made from a resin prepared in the presence of a single site catalyst, said resin having a polydispersity of from about 1 to about 4, a melt index of from about 0.2 to about 20 g/10 min., and a melt flow ratio (I.sub.20 /I.sub.2) of from about 12 to about 35, a second layer comprising a low density polyethylene.

A plastic bag comprising:

• first and second body panels each having a top, a bottom, and first and second opposing sides, said first and second panels being joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides, wherein each of said first and second panels comprises at least two coextruded polymeric film layers, a first layer made from a first resin, said first resin made in the presence of a metallocene-catalyst, said first resin having a polydispersity of from about 1 to about 4, a melt index of from about 0.2 to about 20 g/10 min., and a melt flow ratio (I.sub.20 /I.sub.2) of from about 12 to about 35, and a second layer comprising a low density polyethylene or a blend of said low density polyethylene and a linear low density polyethylene.

A multi-layer co-extruded plastic sheet, comprising:

• a first layer made from a first resin, said first resin made in the presence of a single site catalyst, said first resin having a polydispersity of from about 1 to about 4, a melt index of from about 0.2 to about 20 g/10 min., and a melt flow ratio (I.sub.20 /I.sub.2) of from about 12 to about 35, and
• a second layer comprising a low density polyethylene.