公开(公告)号：US07642336B2

公开(公告)日：2010-01-05

申请号：US11352841

申请日：2006-02-13

申请人： Gray E. Fowler ,  Emerald J. Adair ,  Michael M. Liggett ,  Dong Zhang ,  Frank W. Harris ,  Robert A. Gray

发明人： Gray E. Fowler ,  Emerald J. Adair ,  Michael M. Liggett ,  Dong Zhang ,  Frank W. Harris ,  Robert A. Gray

IPC分类号： C08G63/44 ,  C08G63/00

CPC分类号： C08G73/00 ,  C08J5/24 ,  C08J2379/00 ,  Y10T428/2933

摘要： The disclosed compositions and methods for producing composite materials that are suitably adapted for use in elevated temperature environments generally include the use of oxyarylbisorthodinitrile matrix resins in conjunction with aromatic amines to produce an improved phthalonitrile-based composite. Various features and specifications may be controlled, adapted or otherwise optionally modified to improve the temperature-rated performance of the disclosed composite materials. Exemplary embodiments of the present invention generally provide composite materials that offer improved strength at temperatures in excess of 600° F.

摘要翻译： 用于生产适合于在高温环境中使用的复合材料的所公开的组合物和方法通常包括将芳基双异丁腈基树脂与芳族胺结合使用以产生改进的邻苯二甲腈基复合材料。 可以对各种特征和规格进行控制，调整或以其他方式任意地改性以改善所公开的复合材料的温度等级性能。 本发明的示例性实施方案通常提供在超过600°F的温度下提供改进的强度的复合材料。

公开(公告)号：US5177180A

公开(公告)日：1993-01-05

申请号：US563633

申请日：1990-08-07

申请人： Richard N. Griffin ,  Robert A. Gray

发明人： Richard N. Griffin ,  Robert A. Gray

IPC分类号： C08G73/10 ,  C08K7/02 ,  C08L79/08

CPC分类号： C08G73/1053 ,  C08G73/1042 ,  Y10T428/31721

摘要： Polyimide intercondensation products are prepared from mixed dianhydrides and aromatic diamines. One of the mixed dianhydrides must be 2,2-bis(3,4-dicarboxyphenyl)-hexafluoropropane dianhydride (6FDA) and the other dianhydride may be oxydiphthalic anhydride (ODPA) or biphenyl dianhydride (BPDA) or mixtures thereof. Preferred aromatic diamines are p-phenylenediamine (PPD) and/or m-phenylenediamine (MPD). The polyimide products have increased glass transition temperatures (Tg), frequently higher than 400.degree. C. Composites made from the polyimides have high thermal and oxidative stability and may be used in aircraft engine hardware.

公开(公告)号：USD609384S1

公开(公告)日：2010-02-02

申请号：US29327800

申请日：2008-11-13

申请人： Robert A. Gray ,  Chris Gauden ,  Fred Sorensen ,  Tom Kearney

设计人： Robert A. Gray ,  Chris Gauden ,  Fred Sorensen ,  Tom Kearney

公开(公告)号：US5412185A

公开(公告)日：1995-05-02

申请号：US160713

申请日：1993-11-29

申请人： Philip C. Sturman, Jr. ,  Robert A. Gray

发明人： Philip C. Sturman, Jr. ,  Robert A. Gray

IPC分类号： B01J3/04 ,  B29C35/02 ,  B29C35/08 ,  B29C70/44 ,  H05B6/02 ,  H05B6/10

CPC分类号： B29C70/446 ,  B01J3/04 ,  B29C35/0227 ,  B29C35/08 ,  B01J2219/182 ,  B29C2035/0811 ,  B29C2035/0816 ,  B29K2305/00

摘要： Induction heating is utilized to heat polymer matrix composites containing electrically conductive fibers. This is accomplished with an apparatus having a mandrel for supporting a composite workpiece and a helical induction coil disposed around the mandrel. The mandrel, workpiece and induction coil are disposed in an autoclave. The mandrel is a hollow, porous member having a port formed therein which is connected to a vacuum. A vacuum bag is hermetically sealed on the mandrel so as to define an enclosure over the workpiece. A power source is connected to the induction coil and, when activated, causes the coil to generate an oscillating magnetic field lying along the longitudinal axis of the mandrel. The magnetic field induces heat-generating eddy currents in the fibers of the workpiece which are oriented orthogonally to the magnetic field.

摘要翻译： 使用感应加热来加热含有导电纤维的聚合物基质复合材料。 这是通过具有用于支撑复合工件的心轴和设置在心轴周围的螺旋感应线圈的装置来实现的。 心轴，工件和感应线圈设置在高压釜中。 心轴是中空多孔构件，其具有形成在其中的端口，其连接到真空。 将真空袋气密地密封在心轴上，以便在工件上限定外壳。 电源连接到感应线圈，并且当被激活时，使线圈产生沿着心轴的纵向轴线的摆动磁场。 磁场在与磁场正交定向的工件的光纤中引起发热涡流。

公开(公告)号：US4494309A

公开(公告)日：1985-01-22

申请号：US540405

申请日：1983-10-11

申请人： Robert A. Gray

发明人： Robert A. Gray

IPC分类号： B26B1/02 ,  B26B29/02

CPC分类号： B26B29/025 ,  B26B1/02

摘要： A holder for a knife is disclosed comprising a base, a rear portion, first and second side portions, and first and second flexible portions, with the first and second flexible portions forming the front portion of the first and second side portions and pressing inward to secure the knife within the holder, with the blade of the knife held in an open area between the first and second flexible portions for easy access and utilization.

摘要翻译： 公开了一种用于刀的保持器，包括基座，后部，第一和第二侧部以及第一和第二柔性部分，第一和第二柔性部分形成第一和第二侧部的前部并向内按压 将刀固定在保持器内，刀的刀片保持在第一和第二柔性部分之间的开放区域中，以便于接近和利用。

公开(公告)号：US20140135448A1

公开(公告)日：2014-05-15

申请号：US14006774

申请日：2012-03-30

申请人： Daniel Rome ,  Jan-Erik Rosenberg ,  Erik Lager ,  David Persson ,  Malin Knutsson ,  Dane Momcilovic ,  Robert A. Gray ,  James R. Magato

发明人： Daniel Rome ,  Jan-Erik Rosenberg ,  Erik Lager ,  David Persson ,  Malin Knutsson ,  Dane Momcilovic ,  Robert A. Gray ,  James R. Magato

IPC分类号： C08G73/10 ,  C09D179/08

CPC分类号： C08G73/1071 ,  C07D307/89 ,  C08G73/1014 ,  C09D179/08

摘要： An oligo- or polyimide comprising one or two residue(s) of an anhydride based acetylenic end-capper, at least one EBPA residue, at least one residue of anaromatic di-amine, and optionally at least one residue of an aromatic non-acetylenic di-anhydride is disclosed. A method for obtaining such an oligo- or polyimide is also disclosed.

摘要翻译： 包含一个或两个残基的基于酸酐的炔属封端剂，至少一个EBPA残基，至少一个芳族二胺残基和任选至少一个芳族非炔属残基的寡聚物或聚酰亚胺 二酐被公开。 还公开了获得这种寡聚物或聚酰亚胺的方法。

公开(公告)号：US07236462B2

公开(公告)日：2007-06-26

申请号：US10303435

申请日：2002-11-25

申请人： David M. Davenport ,  Juan Laguer-Diaz ,  Robert A. Gray

发明人： David M. Davenport ,  Juan Laguer-Diaz ,  Robert A. Gray

IPC分类号： H04L1/00

CPC分类号： H04B17/318 ,  H04B17/391 ,  H04W24/00 ,  H04W28/06 ,  H04W64/00 ,  H04W74/06

摘要： A method for data exchange with a mobile asset wherein the communication link quality at the location of the mobile asset is measured at the time of the data transfer. The packet size for the data transfer is selected in response to the communication link quality. The current communication link quality measurement may be used alone or in combination with historical communication link quality data for selecting the data packet size. Communication link quality may be determined repeatedly and the packet size reset accordingly in response to changes in the link quality. A difference between the current communication link quality and historical link quality data may trigger appropriate corrective action, such as identifying the source of intentional or unintentional jamming.

摘要翻译： 一种用于与移动资产进行数据交换的方法，其中在数据传输时测量移动资产位置处的通信链路质量。 响应于通信链路质量来选择用于数据传输的分组大小。 当前的通信链路质量测量可以单独使用或与用于选择数据分组大小的历史通信链路质量数据组合使用。 可以重复地确定通信链路质量，并响应于链路质量的变化相应地重置分组大小。 当前通信链路质量和历史链路质量数据之间的差异可能会触发适当的纠正措施，例如识别有意或无意的干扰源。

公开(公告)号：US06487393B1

公开(公告)日：2002-11-26

申请号：US09411113

申请日：1999-10-04

申请人： David M. Davenport ,  Juan Lauger-Diaz ,  Robert A. Gray

发明人： David M. Davenport ,  Juan Lauger-Diaz ,  Robert A. Gray

IPC分类号： H04B1700

CPC分类号： H04B17/318 ,  H04B17/391 ,  H04W24/00 ,  H04W28/06 ,  H04W64/00 ,  H04W74/06

摘要： A method for data exchange with a mobile asset including the step of comparing the quality of the communication link to a predetermined value prior to initiating the communication. Polling of a fleet of mobile assets may be scheduled by considering a map of the communication link quality along the route of the mobile assets. An optimal packet size may be selected for the data transfer by considering the quality of the communication link.

摘要翻译： 一种用于与移动资产进行数据交换的方法，包括在发起通信之前将通信链路的质量与预定值进行比较的步骤。 可以通过考虑沿着移动资产路线的通信链路质量的映射来调度移动资产的轮询。 可以通过考虑通信链路的质量来选择用于数据传输的最佳分组大小。

公开(公告)号：US20080176987A1

公开(公告)日：2008-07-24

申请号：US12018139

申请日：2008-01-22

申请人： Fred W. Trevet ,  Jan Harper-Trevet ,  Mary A. Mahler ,  Susan Robitaille ,  Robert A. Gray

发明人： Fred W. Trevet ,  Jan Harper-Trevet ,  Mary A. Mahler ,  Susan Robitaille ,  Robert A. Gray

IPC分类号： C08K3/34

CPC分类号： C08K3/346

摘要： A system for modified resin and composite material and methods therefor generally comprise a plurality of clay nanoparticles dispersed in a high temperature resin to provide enhanced microcrack resistance and maintenance and/or improvement of thermal and mechanical properties. In one embodiment, the invention further comprises a reinforcement disposed in the modified resin, wherein the reinforcement and modified resin together comprise a composite material.

摘要翻译： 用于改性树脂和复合材料的系统及其方法通常包括分散在高温树脂中的多种粘土纳米颗粒，以提供增强的耐微裂纹性，并且保持和/或提高热和机械性能。 在一个实施方案中，本发明还包括设置在改性树脂中的增强剂，其中所述增强物和改性树脂一起包括复合材料。

公开(公告)号：US06184333B2

公开(公告)日：2001-02-06

申请号：US09232271

申请日：1999-01-15

申请人： Robert A. Gray

发明人： Robert A. Gray

IPC分类号： C08G7310

CPC分类号： C08G73/101 ,  C08G73/10 ,  C08G73/1032 ,  C08G73/1042 ,  C08G73/1046 ,  C08G73/1082

摘要： The present invention is directed to polyimide systems which simultaneously offer low toxicity, a high glass transition temperature, excellent thermal oxidative stability, and desirable processing characteristics. These various polyimide systems include mixtures of monomeric reactants, polyimide-precursor reaction products, polyimides, and polyimide-containing articles. In one aspect of the invention, the mixture of monomeric reactants includes at least one dia-nhydride or a derivative thereof, and at least one diamine. The diamine may be 4,4′-[1,4-phenylene-bis(1-methylethylidene)]bisaniline, 4,4′-[1,3-phenylene-bis(1-methylethylidene)]bisaniline, and/or a derivative thereof. The diamine also may include a phenylenediamine, 2,2-bis[4-(4-aminophenoxyl)phenyl]propane, 4,4′(1,4-phenylene-bismethylene)bisaniline, and/or a derivative thereof. In addition, the mixture may include a reactive end-capping agent and/or a non-reactive end-capping agent. Also, if desired, the mixture of monomeric reactants may be a dry mix or a solution. The invention also is directed to articles formed from mixtures of monomeric reactants, articles formed from polyimide-precursor reaction products, and articles formed from polyimides themselves. Non-limiting examples include a powder, a neat resin, a coating, a film, a membrane, a foam, an adhesive, a fiber, a composite, a laminate, a prepreg, a part, and a bushing.

摘要翻译： 本发明涉及同时提供低毒性，高玻璃化转变温度，优异的热氧化稳定性和期望的加工特性的聚酰亚胺系统。 这些各种聚酰亚胺系统包括单体反应物，聚酰亚胺前体反应产物，聚酰亚胺和含聚酰亚胺的制品的混合物。 在本发明的一个方面，单体反应物的混合物包括至少一种二酐或其衍生物和至少一种二胺。 二胺可以是4,4' - [1,4-亚苯基 - 双（1-甲基亚乙基）]双苯胺，4,4' - [1,3-亚苯基 - 双（1-甲基亚乙基）]双苯胺和/或 其衍生物。 二胺还可以包括苯二胺，2,2-双[4-（4-氨基苯氧基）苯基]丙烷，4,4'（1,4-亚苯基 - 二亚甲基）双苯胺和/或其衍生物。 此外，混合物可以包括反应性封端剂和/或非反应性封端剂。 此外，如果需要，单体反应物的混合物可以是干混物或溶液。 本发明还涉及由单体反应物的混合物，由聚酰亚胺 - 前体反应产物形成的制品和由聚酰亚胺本身形成的制品形成的制品。 非限制性实例包括粉末，纯树脂，涂层，膜，膜，泡沫，粘合剂，纤维，复合材料，层压材料，预浸料坯，部件和衬套。