专利内容由知识产权出版社提供
专利名称：METHOD AND APPARATUS FOR THE
PRODUCTION OF HIGH TENACITYPOLYOLEFIN SHEET
发明人：HARDING, Kenneth C.,WEEDON, Gene, C.申请号：EP0972.6申请日：20090401公开号：EP2265427B1公开日：20161228
摘要：A process for the production of virtually full density poly olefin suitable forfurther processing by drawing to form a high tenacity, highly oriented polyolefin sheetcomprising: a) feeding a metered amount of polyolefin powder into the nip between twoheated calender rolls initially set at a gap smaller than the size of the smallest polyolefinpowder particle and at a temperature above the melting point of the powder; b) rollingthe powder through the nip under these conditions until a coherent sheet of polyolefin isproduced: and c) once a coherent sheet of polyolefin exits the nip lowering thetemperature in the nip to a temperature below the melting point of the polyolefinpowder and increasing the gap to a desired level above the thickness of the largestpowder particle. Apparatus for the performance of such a process is also described.
申请人：DU PONT
地址：US
国籍：US
代理机构：Dannenberger, Oliver Andre
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