发明名称 |
PROCEDIMIENTO PARA REDUCIR LA FRACTURA EN FUNDISO DURANTE LA EXTRUSION DE UN POLIMERO DE ETILENO LINEAL DE ESTRECHA DISTRIBUCION DE PESO MOLECULAR |
摘要 |
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. |
申请公布号 |
ES487498(D0) |
申请公布日期 |
1980.11.01 |
申请号 |
ES19800487498 |
申请日期 |
1980.01.07 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
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分类号 |
B29C47/00 |
主分类号 |
B29C47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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