Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions

A polymer film comprising at least one layer, said layer comprising a blend of a plurality of linear at least partially crystalline ethylene interpolymer components comprising ethylene and at least one alpha-olefin comonomer, each having a different average molecular weight, a Mw/Mn.ltoreq.3, a density in the range of from about 0.88 g/cm.sup.3 to about 0.94 g/cm.sup.3 , and a CDBI greater than 50% said blend being essentially free of components having both a higher average molecular weight and a lower average comonomer content than that of any other component and a Mw/Mn>3.

A polymer blend comprising a plurality of linear at least partially crystalline ethylene interpolymer components comprising ethylene and at least one alpha-olefin comonomer, each having a different average molecular weight, a density in the range of from 0.88 g/cm.sup.3 to 0.940 g/cm.sup.3 , a Mw/Mn.ltoreq.3 and a CDBI greater than 50%;

• said blend being essentially free of said components having both a higher average molecular weight and a lower average comonomer content than that of any other component and said blend having a Mw/Mn>3.

A polymer blend composition comprising:

• a plurality of linear at least partially crystalline ethylene interpolymers comprising ethylene and at least one .alpha.-olefin comonomer, each of said components having a different average molecular weight, a Mw/Mn.ltoreq.3, a CDBI of at least 50% and a density greater than or equal to 0.88 to about 0.915 g/cm.sup.3 ;
• the composition having a density in the range of greater than or equal to 0.88 g/cm.sup.3 to about 0.915 g/cm.sup.3 and a Mw/Mn>3;
• wherein the composition is essentially free of blend components having both a higher average molecular weight and a lower average comonomer content than that of any other component.

A polymer blend composition comprising:

• a plurality of linear at least partially crystalline ethylene interpolymer components comprising ethylene and at least one .alpha.-olefin comonomer, each of said components having a different average molecular weight, a Mw/Mn.ltoreq.3, a CDBI greater than 50% and a density greater than or equal to 0.88 g/cm.sup.3 ;
• said composition having a density in the range of about 0.88 g/cm.sup.3 to about 0.940 g/cm.sup.3, a Mw/Mn>3 and a CDBI greater than 50%;
• wherein the composition is essentially free of said components having both a higher average molecular weight and a lower average comonomer content than that of any other component.