METHOD FOR REDUCING SHARKSKIN MELT FRACTURE DURING EXTRUSION OF ETHYLENE POLYMERS
摘要
A METHOD FOR REDUCING SHARKSKIN MELT FRACTURE DURING EXTRUSION OF ETHYLENE POLYMERS A method for reducing sharkskin melt fracture during extrusion of a molten narrow molecular weight distribution linear ethylene polymer which comprises extruding said polymer through a die having a die gap greater than about 50 mils and wherein at least a portion of one surface of the die lip and/or die land in contact with the molten polymer is at an angle of divergence or convergence relative to the axis of flow of the molten polymer through the die. S P E C I F I C A T I O N 1.
申请公布号
CA1134579(A)
申请公布日期
1982.11.02
申请号
CA19800343277
申请日期
1980.01.08
申请人
UNION CARBIDE CORPORATION
发明人
KURTZ, STUART J.;BLAKESLEE, THEODORE R., III;SCAROLA, LEONARD S.