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公开(公告)号：US5840828A
公开(公告)日：1998-11-24
申请号：US858201
申请日：1997-05-07
CPC分类号： C08G73/1014 , C08G73/1028 , D01F6/74 , Y10T428/2913 , Y10T428/2969
摘要： A polyimide fiber having textile physical property characteristics and the process of melt extruding same from a polyimide powder. Polyimide powder formed as the reaction product of the monomers 3,4'-ODA and ODPA, and endcapped with phthalic anhydride to control the molecular weight thereof, is melt extruded in the temperature range of 340.degree. C. to 360.degree. C. and at heights of 100.5 inches, 209 inches and 364.5 inches. The fibers obtained have a diameter in the range of 0.0068 inch to 0.0147 inch; a mean tensile strength in the range of 15.6 to 23.1 ksi; a mean modulus of 406 to 465 ksi; and a mean elongation in the range of 14 to 103%.
摘要翻译： 具有纺织物理特性的聚酰亚胺纤维及其从聚酰亚胺粉末熔融挤出的方法。 作为单体3,4'-ODA和ODPA的反应产物形成并与邻苯二甲酸酐封端以控制其分子量的聚酰亚胺粉末在340℃至360℃的温度范围内熔融挤出， 高度为100.5英寸，209英寸和364.5英寸。 所获得的纤维的直径范围为0.0068英寸至0.0147英寸; 平均拉伸强度在15.6至23.1ksi的范围内; 平均模数为406〜465ksi; 平均伸长率在14〜103％的范围内。
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公开(公告)号：US5670256A
公开(公告)日：1997-09-23
申请号：US689760
申请日：1996-08-13
CPC分类号： C08G73/1014 , C08G73/1028 , D01F6/74 , Y10T428/2913 , Y10T428/2969
摘要： A polyimide fiber having textile physical property characteristics and the process of melt extruding same from a polyimide powder. Polyimide powder formed as the reaction product of the monomers 3,4'-ODA and ODPA, and endcapped with phthalic anhydride to control the molecular weight thereof, is melt extruded in the temperature range of 340.degree. C. to 360.degree. C. and at heights of 100.5 inches, 209 inches and 364.5 inches. The fibers obtained have a diameter in the range of 0.0068 inch to 0.0147 inch; a mean tensile strength in the range of 15.6 to 23.1 ksi; a mean modulus of 406 to 465 ksi; and a mean elongation in the range of 14 to 103%.
摘要翻译： 具有纺织物理特性的聚酰亚胺纤维及其从聚酰亚胺粉末熔融挤出的方法。 作为单体3,4'-ODA和ODPA的反应产物形成并与邻苯二甲酸酐封端以控制其分子量的聚酰亚胺粉末在340℃至360℃的温度范围内熔融挤出， 高度为100.5英寸，209英寸和364.5英寸。 所获得的纤维的直径范围为0.0068英寸至0.0147英寸; 平均拉伸强度在15.6至23.1ksi的范围内; 平均模数为406〜465ksi; 平均伸长率在14〜103％的范围内。
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公开(公告)号：US5889139A
公开(公告)日：1999-03-30
申请号：US816946
申请日：1997-02-28
CPC分类号： C08G73/1042 , C08G73/1053 , C08G73/1067 , C08G73/1082 , H05K3/4676 , Y10T428/31504 , Y10T428/31721
摘要： Novel polyimide copolymers containing ether linkages were prepared by the reaction of an equimolar amount of dianhydride and a combination of diamines. The polyimide copolymers described herein possess the unique features of low moisture uptake, dimensional stability, good mechanical properties, and moderate glass transition temperatures. These materials have potential application as encapsulants and interlayer dielectrics.
摘要翻译： 通过等摩尔量的二酐与二胺的组合的反应来制备含有醚键的新型聚酰亚胺共聚物。 本文所述的聚酰亚胺共聚物具有低吸湿性，尺寸稳定性，良好的机械性能和适度的玻璃化转变温度的独特特征。 这些材料具有潜在的应用作为密封剂和层间电介质。
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