A polyethylene blend composition having reduced chill roll buildup during extrusion process comprising: (a) from 60 to 95 percent by weight of a linear polyethylene composition comprising; less than or equal to 100 percent by weight of the units derived from ethylene; less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear polyethylene composition has a density in the range of from 0.917 to 0.975 g/cm 3, a molecular weight distribution (M w /M n) as determined by gel permeation chromatography in the range of from 1.70 to 3.62, a melt index (I 2) in the range of from 2 to 50 g/10 minutes, and vinyl unsaturation (measured according to ASTM D-6248-98) in the range of from less than 0.06 vinyls per one thousand carbon atoms present in the linear polyethylene composition wherein said linear polyethylene composition is a linear low density polyethylene (LLDPE), a high density polyethylene (HDPE), or combinations thereof; (b) from 5 to 40 percent by weight of a low density polyethylene composition (LDPE) having a density in the range of from 0.915 to 0.930 g/cm 3, and a melt index (I 2) in the range of from 0.4 to 10; wherein the polyethylene blend composition has a density in the range of 0.917 to 0.920 g/cm 3 and a melt index (I 2) in the range of from 2 to 30 g/10 minutes and wherein said polyethylene blend composition produces less than 0.06 grams of contamination, measured according to a Plate Out Test; wherein all densities are measured according to ASTM-D 792-03, Method B, in isopropanol, and all melt indices are measured at 190°C under a load of 2.16 kg according to ASTM D-1238-03. (a) from 60 to 95 percent by weight of a linear polyethylene composition comprising; less than or equal to 100 percent by weight of the units derived from ethylene; less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear polyethylene composition has a density in the range of from 0.917 to 0.975 g/cm 3, a molecular weight distribution (M w /M n) as determined by gel permeation chromatography in the range of from 1.70 to 3.62, a melt index (I 2) in the range of from 2 to 50 g/10 minutes, and vinyl unsaturation (measured according to ASTM D-6248-98) in the range of from less than 0.06 vinyls per one thousand carbon atoms present in the linear polyethylene composition wherein said linear polyethylene composition is a linear low density polyethylene (LLDPE), a high density polyethylene (HDPE), or combinations thereof; less than or equal to 100 percent by weight of the units derived from ethylene; less than 15 percent by weight of units derived from one or more α-olefin comonomers; wherein said linear polyethylene composition has a density in the range of from 0.917 to 0.975 g/cm 3, a molecular weight distribution (M w /M n) as determined by gel permeation chromatography in the range of from 1.70 to 3.62, a melt index (I 2) in the range of from 2 to 50 g/10 minutes, and vinyl unsaturation (measured according to ASTM D-6248-98) in the range of from less than 0.06 vinyls per one thousand carbon atoms present in the linear polyethylene composition wherein said linear polyethylene composition is a linear low density polyethylene (LLDPE), a high density polyethylene (HDPE), or combinations thereof; (b) from 5 to 40 percent by weight of a low density polyethylene composition (LDPE) having a density in the range of from 0.915 to 0.930 g/cm 3, and a melt index (I 2) in the range of from 0.4 to 10;