Patent ID: 11945889
Assignee: UNIVATION TECHNOLOGIES, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A bimodal ethylene-co-1-hexene copolymer consisting essentially of a higher molecular weight (HMW) component and a lower molecular weight (LMW) component and, when in melted form at 190° C., is characterized by a melt property space defined by a combination of high-load melt index (“HLMI” or “I21”), melt flow ratio I21/I5 (“MFR5”), and melt elasticity (G′/G″ @0.1 rad/s) properties, wherein the HLMI is 7.0 to 11.0 grams per 10 minutes (g/10 min.) and is measured according to ASTM D1238-13 (190° C., 21.6 kg); the MFR5 is 22.0 to 35.0, wherein the I21 and I5 values used to calculate the MFR5 are each in g/10 min. and are measured according to ASTM D1238-13 (190° C., 21.6 kg, “I21”; and 190° C., 5.0 kg, “I5”, respectively), and the melt elasticity is 0.5 to 0.8 pascals (Pa), wherein melt elasticity=G′/G″ determined at 0.1 radian per second (rad/s) according to Melt Elasticity Test Method; and wherein the bimodal ethylene-co-1-hexene copolymer has a density from 0.9410 to 0.9550 gram per cubic centimeter (g/cm3), measured according to ASTM D792-13, Method B, further wherein the copolymer a component molecular weight spread characterized by a ratio of the weight-average molecular weight of the HMW component (Mw-HMW) to the weight-average molecular weight of the LMW component (Mw-LMW) (i.e., Mw-HMW/Mw-LMW ratio) from 38.0 to 50.0, measured according to the GPC Test Method.