Chevron Phillips Chemical Company LP

Brooke A Gill

Qing R Yang

Guylaine St Jean

Elizabeth Mary Lanier

J Todd Lanier

Mark L Hlavinka

Qing Yang

Deloris R Gagan

Jerry T Lanier

A first embodiment which is a bimodal polymer having a weight fraction of a lower molecular weight (LMW) component ranging from about 0.25 to about 0.45, a weight fraction of a higher molecular weight (HMW) component ranging from about 0.55 to about 0.75 and a density of from about 0.931 g/cc to about 0.955 g/cc which when tested in accordance with ASTM D1003 using a 1 mil test specimen displays a haze characterized by equation: % Haze=2145&#x2212;2216*Fraction&#x2212;181*a molecular weight distribution of the LMW component (MWD)&#x2212;932*a molecular weight distribution of the HMW component (MWD)+27*(Fraction*MWD)+1019*(Fraction*MWD)+73*(MWD*MWD) wherein fraction refers to the weight fraction of the component in the polymer as a whole.

High clarity low haze compositions

A first embodiment which is a bimodal polymer having a weight fraction of a lower molecular weight (LMW) component ranging from about 0.25 to about 0.45, a weight fraction of a higher molecular weight (HMW) component ranging from about 0.55 to about 0.75 and a density of from about 0.931 g/cc to about 0.955 g/cc which when tested in accordance with ASTM D1003 using a 1 mil test specimen displays a haze characterized by equation: % Haze=2145&#x2212;2216*Fraction&#x2212;181*a molecular weight distribution of the LMW component (MWD)&#x2212;932*a molecular weight distribution of the HMW component(MWD)+27*(Fraction*MWD)+1019*(Fraction*MWD)+73*(MWD*MWD) wherein fraction refers to the weight fraction of the component in the polymer as a whole.

A polymer having a melt index of from about 0.5 g/10 min to about 4.0 g/10 min and a density of equal to or greater than 0.96 g/cc which when formed into a 1-mil film displays a moisture vapor transmission rate ranging from equal to or greater than about 0 to equal to or about 20% greater than X where X=k{&#x2212;61.95377+39.52785(M/M)&#x2212;8.16974(M/M)+0.55114(M/M)}+k{&#x2212;114.01555(&#x3c4;)+37.68575(M/M)(&#x3c4;)&#x2212;2.89177(M/M)(&#x3c4;)}+k{120.37572(&#x3c4;)&#x2212;25.91177(M/M)(&#x3c4;)}+k{18.03254(&#x3c4;)} when Mis from about 100 kg/mol to about 180 kg/moL; Mis from about 300 kg/mol to about 1000 kg/mol; &#x3c4; is from about 0.01 S to about 0.35 s; kis 1 g/100 in&#xb7;day; kis 1 g/100 in&#xb7;day&#xb7;s; kis 1 g/100 in&#xb7;day&#xb7;s; and kis 1 g/100 in&#xb7;day&#xb7;s.

Polymer compositions having improved barrier properties

A unimodal polymer having a melt index of from about 0.5 g/10 min to about 4 g/10 min, a density of equal to or greater than about 0.945 g/cc which when formed into a film displays a moisture vapor transmission rate of less than about 0.55 g-mil/100 inin 24 hours as determined in accordance with ASTM F 1249. A unimodal polymer having a melt index of from about 0.5 g/10 min to about 4 g/10 min, a density of equal to or greater than about 0.945 g/cc which when formed into a film displays a moisture vapor transmission rate of less than about 0.44 g-mil/100 inin 24 hours as determined in accordance with ASTM F 1249.

Growing community of inventors

Glen Carbon, IL, United States of America

Brooke A Gill