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公开(公告)号：US5529740A
公开(公告)日：1996-06-25
申请号：US307993
申请日：1994-09-16
申请人： Randy D. Jester , John A. Penoyer , Douglas D. Roth , Detlef Frank , Minoru Onodera , Takeichi Tsudaka , Toshiaki Sato , Tohei Moritani
发明人： Randy D. Jester , John A. Penoyer , Douglas D. Roth , Detlef Frank , Minoru Onodera , Takeichi Tsudaka , Toshiaki Sato , Tohei Moritani
IPC分类号： B29C33/52 , B29C41/12 , B29C41/36 , B29C41/40 , B29C41/42 , B29C41/46 , B29C47/00 , B29C71/02 , B29L7/00 , C09K19/38
CPC分类号： B29C71/02 , B29C47/00 , B29C47/0019 , B29C47/0021 , B29C47/0057 , B29C47/065 , B29K2105/0079 , B29L2007/008
摘要： A process for treating a liquid crystal polymer film which includes the steps of: heating a film obtained by extrusion molding of a liquid crystal polymer, while contacting at least one surface of the film with a supporting body, to melt the polymer; cooling the melted polymer to form a solidified polymer layer; and separating the solidified polymer layer from the supporting body. The process readily provides liquid crystal polymer films having excellent resistance to intra-layer delamination and high tensile strength and elongation, as well as excellent resistance to abrasion, dimensional stability when heated, and resistance to folding.
摘要翻译： 一种处理液晶聚合物膜的方法，包括以下步骤：在将膜的至少一个表面与支撑体接触的同时，将通过液晶聚合物的挤出成型获得的膜加热，使聚合物熔融; 冷却熔融的聚合物以形成固化的聚合物层; 并将固化的聚合物层与支撑体分离。 该方法容易地提供具有优异的层内分层耐受性和高拉伸强度和伸长率的液晶聚合物膜，以及优异的耐磨性，加热时的尺寸稳定性和耐折叠性。
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公开(公告)号：US4605364A
公开(公告)日：1986-08-12
申请号：US680452
申请日：1985-01-25
摘要： A melt-spinning apparatus is disclosed for reducing the birefringence variability of melt-spun yarn made at high pack throughputs. It involves extruding polymer at an average mass-flow rate through a first group of orifices (defined by specific location in the spinnerette), that is greater than the mass-flow rate of polymer through a second group of orifices (also defined by location in the spinnerette). The apparatus comprises a spinneret having concentric rows of orifices and a centrally located quench means, with the diameter, d.sub.1, of the orifices in the row closest to the quench means being greater than the diameter, d.sub.2, of the orifices in the row furtherest from the quench means by an amount such that d1/d2 is in the range from 1.03 to 1.20.
摘要翻译： 公开了一种熔融纺丝装置，用于降低以高包装生产量产生的熔纺纱线的双折射变异性。 它涉及通过第一组孔口（由喷丝板中的特定位置限定）以平均质量流速挤出聚合物，其大于通过第二组孔口的聚合物的质量流率（也由位于 喷丝板）。 该设备包括具有同心排的孔口和中心定位的骤冷装置的喷丝头，其中最靠近淬火装置的排中的孔的直径d1大于其中的孔中的孔的直径d2 淬火是指d1 / d2在1.03〜1.20的范围内。
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公开(公告)号：US4514350A
公开(公告)日：1985-04-30
申请号：US422116
申请日：1982-09-23
摘要： A melt-extrusion process is disclosed for reducing the birefringence variability of melt-spun yarn made at high pack throughputs. It involves extruding polymer at an average mass-flow rate through a first group of orifices (defined by specific location in the spinnerette), that is greater than the mass-flow rate of polymer through a second group of orifices (also defined by location in the spinnerette). It is preferred that a spinnerette be used in which the dimensions of the orifices differ from group to group in a defined manner.
摘要翻译： 公开了一种熔融挤出方法，用于降低在高包装产量下制造的熔纺纱线的双折射变异性。 它涉及通过第一组孔口（由喷丝板中的特定位置限定）以平均质量流速挤出聚合物，其大于通过第二组孔口的聚合物的质量流率（也由位于 喷丝板）。 优选使用喷丝板，其中孔的尺寸以规定的方式在不同组之间不同。
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