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1. 发明授权

US4374114A Process for the surface modification of carbon fibers 失效
标题翻译：碳纤维表面改性工艺
公开(公告)号：US4374114A
公开(公告)日：1983-02-15
申请号：US222790
申请日：1981-01-05
申请人： Sang N. Kim , Paul E. McMahon , John P. Riggs , John M. Rhodes
发明人： Sang N. Kim , Paul E. McMahon , John P. Riggs , John M. Rhodes
IPC分类号： D06M11/00 , D01F9/14 , D01F9/22 , D01F11/10 , D01F11/12 , D01F11/16 , D06M11/34 , D06M11/58 , D06M11/64 , D06M101/00 , D06M101/28 , D06M101/40 , D01F9/12
CPC分类号： D01F11/122
摘要： An improved continuous hot gas surface modification process for carbon fibers is provided. The carbon fibers undergoing such processing are passed for a relatively brief residence time through a surface treatment zone to which continuously is fed nitrogen dioxide and air under conditions which have been found to produce a surprisingly effective surface modification. The resulting carbon fibers exhibit a significantly enhanced surface area and an improved ability to bond to a resinous matrix material while retaining a substantial portion of the tensile strength originally exhibited. When incorporated in a resinous matrix material, a fiber reinforced composite article of enhanced interlaminar shear strength is formed.
摘要翻译：提供了一种用于碳纤维的改进的连续热气表面改性方法。进行这种处理的碳纤维通过表面处理区相对较短的停留时间，在表面处理区，连续供给二氧化氮和空气的条件下，已经发现产生令人惊讶的有效的表面改性。所得到的碳纤维表现出显着增强的表面积和改善的与树脂基质材料结合的能力，同时保留了原来显示出的大部分拉伸强度。当结合到树脂基质材料中时，形成增强的层间剪切强度的纤维增强复合制品。

2. 发明授权

US4020273A Vertical pyrolysis furnace for use in the production of carbon fibers 失效
标题翻译：立式热解炉用于生产碳纤维
公开(公告)号：US4020273A
公开(公告)日：1977-04-26
申请号：US635515
申请日：1975-11-26
申请人： Robert Dix , Richard F. Markel , James A. Parker , John P. Riggs , Dale T. Vest
发明人： Robert Dix , Richard F. Markel , James A. Parker , John P. Riggs , Dale T. Vest
IPC分类号： D01F9/32 , F27D11/02 , H05B3/00
CPC分类号： F27D11/02 , D01F9/32 , H05B3/0014
摘要： A vertical pyrolysis furnace used in the carbonization or high temperature heat treatment of a continuous length of organic fibrous material is disclosed. The oven includes a central conduit or passage having a plurality of independently controlled heating zones disposed circumferentially therearound and spaced axially therealong. The conduit and heating elements are surrounded by suitable insulating material and a gas-tight shell. At the top of the furnace an exhaust manifold is provided which communicates with the central conduit. An environmental seal is provided at the upper end of the exhaust manifold and at the bottom of the conduit. Suitable gaseous inlets communicate with the furnace for an inert gaseous atmosphere which is controlled such that free convection causes the gaseous atmosphere to rise vertically through the central conduit to the exhaust chamber located at the upper end thereof. A continuous length of organic fibrous material moves vertically downwardly through the central conduit from the upper environmental seal to the lower environmental seal. The independently controlled heating zones provide a vertically downwardly increasing temperature gradient, up to a desired maximum value which extends over a prescribed length, which drives off toxic gaseous by-products from the continuous length of organic fibrous material. The heating zone placement and lower environmental seal permit the continuous length of organic fibrous material to cool substantially before exiting to the atmosphere.
摘要翻译：公开了一种用于连续长度的有机纤维材料的碳化或高温热处理的立式热解炉。烤箱包括具有多个独立控制的加热区域的中心管道或通道，其周向设置并沿其轴向间隔设置。导管和加热元件由合适的绝缘材料和气密外壳包围。在炉顶部设置有与中心导管连通的排气歧管。在排气歧管的上端和导管的底部设有环境密封。合适的气体入口与炉子连通，用于惰性气体气氛，其被控制使得自由对流使得气态气氛垂直地升高通过位于其上端的排气室。连续长度的有机纤维材料通过中央导管从上部环境密封件向下垂直移动到下部环境密封件。独立控制的加热区域提供垂直向下增加的温度梯度，达到期望的最大值，其延伸超过规定的长度，其驱使有机纤维材料的连续长度的有毒气体副产物。加热区放置和较低的环境密封允许连续长度的有机纤维材料在离开大气之前基本上冷却。

3. 发明授权

US5170461A Polymeric electrooptic waveguide devices using a polymeric substrate 失效
标题翻译：使用聚合物基质的聚合电光波导器件
公开(公告)号：US5170461A
公开(公告)日：1992-12-08
申请号：US807037
申请日：1991-12-11
申请人： Hyun N. Yoon , Frank J. Onorato , John P. Riggs
发明人： Hyun N. Yoon , Frank J. Onorato , John P. Riggs
IPC分类号： G02F1/065
CPC分类号： G02F1/065
摘要： This invention provides superior electrooptic devices containing an organic polymeric waveguiding medium, and a process of fabricating such devices. The fabrication process utilizes a substantially stress-free organic polymeric substrate on top of which the necessary organic layers are successively deposited. The substrate is so selected that its thermal expansion coefficient is substantially close to that of the cladding layers and of the waveguiding layer.
摘要翻译：本发明提供了含有有机聚合物波导介质的优良电光装置，以及制造这种装置的方法。制造工艺利用基本上无应力的有机聚合物基底，其上依次沉积必需的有机层。衬底被选择成使得其热膨胀系数基本上接近于包覆层和波导层的热膨胀系数。

4. 发明授权

US3961888A Acrylic fiber conversion utilizing a stabilization treatment conducted initially in an essentially inert atmosphere 失效
标题翻译：丙烯酸纤维转化采用最初在基本惰性气氛中进行的稳定化处理
公开(公告)号：US3961888A
公开(公告)日：1976-06-08
申请号：US760658
申请日：1968-09-18
申请人： John P. Riggs
发明人： John P. Riggs
IPC分类号： D01F9/22 , D06M11/34 , D06M3/26 , C01B31/07
CPC分类号： D01F9/22 , D01F9/225 , D06M11/34
摘要： A process is provided for the stabilization of a fibrous material composed of an acrylic polymer, e.g. an acrylonitrile homopolymer or a closely related copolymer. The fibrous material is subjected to a multiple stage stabilization treatment in which the initial stage is conducted in an essentially inert atmosphere, and a subsequent stage in an atmosphere containing an appreciable quantity of oxygen. The initial treatment which is conducted in a relatively inert atmosphere is believed to result in an improved cyclized molecular structure without encountering excessive chain cleavage, and is followed by an oxygen cross-linking reaction. The stabilized product exhibits improved physical properties. Carbonized or carbonized and graphitized fibrous materials may be formed upon heating the stabilized product in an inert atmosphere.
摘要翻译：提供了一种方法，用于稳定由丙烯酸聚合物组成的纤维材料，例如，丙烯腈均聚物或密切相关的共聚物。将纤维材料进行多级稳定化处理，其中初始阶段在基本上惰性的气氛中进行，并且在含有相当量的氧气的气氛中进行。在相对惰性气氛中进行的初始处理被认为导致改进的环化分子结构，而不会遇到过度的链断裂，并且之后是氧交联反应。稳定的产品具有改善的物理性能。碳化或碳化和石墨化的纤维材料可以在惰性气氛中加热稳定的产品时形成。

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