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1.发明授权Dry powder process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs 失效用于从聚合物粉末涂覆的丝状丝网纸制备单带预浸料的干粉工艺
公开(公告)号：US5618367A
公开(公告)日：1997-04-08
申请号：US425005
申请日：1995-04-10
CPC分类号： B32B37/1045 , B29B15/12 , B29C70/504 , B32B37/04 , B32B5/28 , B32B2305/10 , B32B2311/18
摘要： A process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs is provided. A plurality of polymer powder coated filamentary towpregs are provided. The towpregs are collimated so that each towpreg is parallel. A material is applied to each side of the towpreg to form a sandwich. The sandwich is heated to a temperature wherein the polymer flows and intimately contacts the filaments and pressure is repeatedly applied perpendicularly to the sandwich with a longitudinal oscillating action wherein the filaments move apart and the polymer wets the filaments forming a uni-tape prepreg. The uni-tape prepreg is subsequently cooled.
摘要翻译： 提供了一种从聚合物粉末涂覆的丝状丝网纸制备单带预浸料的方法。 提供了多种聚合物粉末涂覆的丝状丝束。 拖把被准直，使得每个拖把平行。 将一种材料施加到拖把的每一侧以形成三明治。 将夹心物加热到聚合物流动并与丝束紧密接触的温度，并且以纵向振荡作用垂直于三明治反复施加压力，其中细丝移开并且聚合物润湿形成单带预浸料的长丝。 随后将单片预浸料坯冷却。
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公开(公告)号：US06500370B1
公开(公告)日：2002-12-31
申请号：US09620274
申请日：2000-07-18
IPC分类号： B29C6700
CPC分类号： B29C70/16 , B29B15/122 , B29C70/50 , Y10T156/109
摘要： The invention is an apparatus and method for producing a hybrid boron reinforced polymer matrix composition from powder pre-impregnated fiber tow bundles and a linear array of boron fibers. The boron fibers are applied onto the powder pre-impregnated fiber tow bundles and then are processed within a processing component having an impregnation bar assembly. After passing through variable-dimension forming nip-rollers, the powder pre-impregnated fiber tow bundles with the boron fibers become a hybrid boron reinforced polymer matrix composite tape. A driving mechanism pulls the powder pre-impregnated fiber tow bundles with boron fibers through the processing line of the apparatus and a take-up spool collects the formed hybrid boron-fiber reinforced polymer matrix composite tape.
摘要翻译： 本发明是一种从粉末预浸纤维丝束和硼纤维直线阵列制备杂化硼增强聚合物基质组合物的装置和方法。 将硼纤维施加到粉末预浸渍的纤维束上，然后在具有浸渍棒组件的加工部件内加工。 经过可变尺寸的成型夹辊之后，与硼纤维的预浸纤维丝束成为混合硼增强聚合物基质复合带。 驱动机构通过设备的处理线将具有硼纤维的粉末预浸纤维束束拉出，卷取卷轴收集形成的混合硼纤维增强聚合物基质复合带。
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公开(公告)号：US5331063A
公开(公告)日：1994-07-19
申请号：US968082
申请日：1992-10-27
申请人： Ruth H. Pater , Norman J. Johnston
发明人： Ruth H. Pater , Norman J. Johnston
CPC分类号： C08G73/1082 , C08G73/101 , C08G73/1064 , C08L79/08 , Y10S525/903
摘要： This invention is a semi-interpenetrating polymer network which includes a high performance thermosetting polyimide having a nadic end group acting as a crosslinking site and a high performance linear thermoplastic polyimide having the following repeating unit. ##STR1## wherein Z=C or SO.sub.2. Provided is an improved high temperature matrix resin which is capable of performing in the 200.degree. to 300.degree. C. range. This resin has significantly improved toughness and microcracking resistance, excellent processability, mechanical performance and moisture and solvent resistances.
摘要翻译： 本发明是一种半互穿聚合物网络，其包括具有作为交联部位的纳蒂端基的高性能热固性聚酰亚胺和具有以下重复单元的高性能线性热塑性聚酰亚胺。 其中Z = C或SO2。 提供一种改进的高温基质树脂，其能够在200℃至300℃的范围内进行。 该树脂具有显着提高的韧性和抗微裂纹性，优异的加工性能，机械性能和耐湿性和耐溶剂性。
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公开(公告)号：US5159029A
公开(公告)日：1992-10-27
申请号：US429514
申请日：1989-10-31
申请人： Ruth H. Pater , Norman J. Johnston
发明人： Ruth H. Pater , Norman J. Johnston
CPC分类号： C08G73/1082 , C08G73/101 , C08G73/1064 , C08L79/08 , Y10S525/903
摘要： This invention is a semi-interpenetrating polymer network which includes a high performance thermosetting polyimide having a nadic end group acting as a crosslinking site and a high performance linear thermoplastic polyimide having the following repeating unit. ##STR1## wherein Z=C or SO.sub.2. Provided is an improved high temperature matrix resin which is capable of performing in the 200.degree. to 300.degree. C. range. This resin has significantly improved toughness and microcracking resistance, excellent processability, mechanical performance and moisture and solvent resistances.
摘要翻译： 本发明是一种半互穿聚合物网络，其包括具有作为交联部位的纳蒂端基的高性能热固性聚酰亚胺和具有以下重复单元的高性能线性热塑性聚酰亚胺。 ＆lt; IMAGE＆gt; + TR＆lt; IMAGE＆gt;其中Z = C或SO 2。 提供一种改进的高温基质树脂，其能够在200℃至300℃的范围内进行。 该树脂具有显着提高的韧性和抗微裂纹性，优异的加工性能，机械性能和耐湿性和耐溶剂性。
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5.发明授权
公开(公告)号：US5252168A
公开(公告)日：1993-10-12
申请号：US788403
申请日：1991-11-06
CPC分类号： C08J5/24 , C08J3/03 , C08J2379/08 , Y10T428/2918 , Y10T428/30
摘要： An aqueous process was developed to prepare a consolidated composite laminate from an aqueous slurry. An aqueous poly(amic acid) surfactant solution was prepared by dissolving a poly(amic acid) powder in an aqueous ammonia solution. A polymeric powder was added to this solution to form a slurry. The slurry was deposited on carbon fiber to form a prepreg which was dried and stacked to form a composite laminate. The composite laminate was consolidated using pressure and was heated to form the polymeric matrix. The resulting composite laminate exhibited high fracture toughness and excellent consolidation.
摘要翻译： 开发了一种水性方法以从含水浆料制备固结的复合层压材料。 通过将聚（酰胺酸）粉末溶解在氨水溶液中来制备聚（酰胺酸）表面活性剂水溶液。 向该溶液中加入聚合物粉末以形成浆料。 将浆料沉积在碳纤维上以形成预浸料，其被干燥并层叠以形成复合层压材料。 使用压力将复合层压板固结并加热形成聚合物基体。 所得到的复合层压板显示出高的断裂韧性和优异的固结性。
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6.发明授权Preparing composite materials from matrices of processable aromatic polyimide thermoplastic blends 失效从可加工的芳族聚酰亚胺热塑性共混物的基质制备复合材料
公开(公告)号：US5004575A
公开(公告)日：1991-04-02
申请号：US262268
申请日：1988-10-21
IPC分类号： C08J5/24
CPC分类号： C08J5/24 , C08J2379/08
摘要： Composite materials with matrices of tough, thermoplastic aromatic polyimides are obtained by blending semi-crystalline polyimide powders with polyamic acid solutions to form slurries, which are used in turn to prepare prepregs, the consolidation of which into finished composites is characterized by excellent melt flow during processing.
摘要翻译： 通过将半结晶聚酰亚胺粉末与聚酰胺酸溶液混合以形成浆料来获得具有韧性，热塑性芳族聚酰亚胺基质的复合材料，其依次用于制备预浸料，其固化成成品复合材料的特征在于优异的熔体流动 处理。
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