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16 条记录 (耗时 0.014 秒)

    Extended shelf life prepreg article and method
    1.
    发明授权
    Extended shelf life prepreg article and method 失效
    延长的生命准备条款和方法

    公开(公告)号：US5165989A

    公开(公告)日：1992-11-24

    申请号：US445569

    申请日：1989-12-04

    申请人： Ashok Bhatnagar ,  David S. Cordova ,  Leroy C. Lin

    发明人： Ashok Bhatnagar ,  David S. Cordova ,  Leroy C. Lin

    IPC分类号： B29B11/16 ,  B29B15/08 ,  B29K105/06 ,  C08J5/24

    CPC分类号： C08J5/24 ,  Y10T428/30 ,  Y10T428/31504 ,  Y10T442/2615 ,  Y10T442/2623

    摘要： An essentially tack free prepreg article, characterized by a shelf life at about 25.degree. C. of at least about three months, and method of making the same are provided. The prepreg article comprises at least one network of fibers which has been impregnated with a solution of a resin in styrene and a catalyst. The resin is curable by the catalyst at a temperature above about 90.degree. C. The impregnated network is dried for a length of time and at a temperature sufficient to reduce the styrene content to less than about 1% by weight of the impregnated network without curing the resin. The prepreg article can subsequently be used as a component in a molded composite.

    摘要翻译： 一种基本上无粘性的预浸料制品，其特征在于约25℃的保质期为至少约三个月，并提供其制备方法。 预浸料制品包括至少一种已经用树脂在苯乙烯和催化剂中浸渍的纤维网。 该树脂可以在高于约90℃的温度下由催化剂固化。浸渍的网络被干燥一段时间，并且在足以将苯乙烯含量降低至低于浸渍网络的约1重量％而不固化的温度 树脂。 随后可将预浸料制品用作模塑复合材料中的组分。

    Polishing method and apparatus
    4.
    发明授权
    Polishing method and apparatus 失效
    抛光方法和设备

    公开(公告)号：US4688309A

    公开(公告)日：1987-08-25

    申请号：US816083

    申请日：1986-01-03

    申请人： David S. Cordova ,  Rob R. Gordon, Jr.

    发明人： David S. Cordova ,  Rob R. Gordon, Jr.

    IPC分类号： B24B29/00 ,  B24B1/00

    CPC分类号： B24B29/00 ,  Y10S425/806 ,  Y10T29/47

    摘要： Method and apparatus for polishing an article are provided. The method features the step of contacting the article in an area to be polished with at least one polyethylene filament. The polishing apparatus comprises at least one polyethylene filament, and means for rotating the filament about a central axis for contact with the surface to be polished. The polyethylene filament of choice is characterized by a tenacity and an elongation such that the product of the tenacity and the square root of the elongation (toughness paramenter) ranges from 20 to 60 units. With use of such a filament, deflashing of an article to be deflashed can be accomplished simultaneously with the polishing of the article.

    摘要翻译： 提供了用于抛光制品的方法和装置。 该方法的特征在于使待抛光区域中的制品与至少一个聚乙烯长丝接触。 抛光装置包括至少一个聚乙烯长丝，以及用于围绕中心轴旋转细丝以与待抛光表面接触的装置。 选择的聚乙烯长丝的特征在于强度和伸长率，使得伸长率（韧性参数）的强度和平方根的乘积范围为20至60单位。 通过使用这种细丝，可以与制品的抛光同时完成待粉碎物品的粉碎。

    Cut resistant protective glove
    5.
    发明授权
    Cut resistant protective glove 失效
    防切割防护手套

    公开(公告)号：US5442815A

    公开(公告)日：1995-08-22

    申请号：US931126

    申请日：1992-08-17

    申请人： David S. Cordova ,  Gene C. Weedon ,  Robert C. Wincklhofer ,  Mark B. Boone ,  Kevin M. Kirkland ,  Charles P. Weber, Jr. ,  Greogry J. LaCasse

    发明人： David S. Cordova ,  Gene C. Weedon ,  Robert C. Wincklhofer ,  Mark B. Boone ,  Kevin M. Kirkland ,  Charles P. Weber, Jr. ,  Greogry J. LaCasse

    IPC分类号： A41D19/00 ,  A41D19/015 ,  A61B19/04 ,  D04B1/28

    CPC分类号： D02G3/328 ,  A41D19/0055 ,  A41D19/01505 ,  A61B42/00 ,  D02G3/442 ,  D04B1/28 ,  Y10T428/2936

    摘要： A flexible, uncoated glove made from nonmetallic fabric comprising at least one fiber is disclosed. The glove is characterized by either weighing no more than about 30 g or having a thickness of no more than about 1.25 mm (0.05 inch), being cut resistant over some portion thereof by enduring without cutting through at least 5 cycles of an impact cam cut test, having compliance so that the wearer has a high degree of tactility, and having a cut resistance of at least 5 cycles of an impact cam cut test after a disinfectant treatment with sodium hypochlorite. The gloves are particularly useful in the medical field where they provide excellent cut protection and can be disinfected at least once while maintaining an acceptable level of cut resistance. In an alternate embodiment, a similarly characterized glove is made from a layer of fibrous material adhered to a surface of an elastomeric glove without being fully encapsulated thereby. This glove is also particularly useful in the medical field where it provides excellent cut protection.

    摘要翻译： 公开了一种由包含至少一种纤维的非金属织物制成的柔性的未涂覆手套。 手套的特征在于重量不超过约30g或具有不超过约1.25mm（0.05英寸）的厚度，通过耐久性而在其某些部分上耐磨而不切割冲击凸轮切割的至少5个循环 测试，具有柔顺性，使佩戴者具有高度的触觉性，并且在用次氯酸钠消毒处理之后具有至少5个循环的冲击凸轮切割试验的耐切割性。 手套在医疗领域特别有用，它们提供优异的切割保护，并且可以至少一次消毒，同时保持可接受的耐切割水平。 在替代实施例中，类似特征的手套由粘附到弹性手套的表面的纤维材料层制成，而不被完全包封。 这种手套在医疗领域也特别有用，因为它提供了极好的切割保护。

    Armor systems
    6.
    发明授权
    Armor systems 失效
    护甲系统

    公开(公告)号：US5343796A

    公开(公告)日：1994-09-06

    申请号：US924566

    申请日：1992-08-05

    申请人： David S. Cordova ,  Kevin M. Kirkland

    发明人： David S. Cordova ,  Kevin M. Kirkland

    IPC分类号： B32B5/26 ,  D04H13/00 ,  F41H5/04

    CPC分类号： F41H5/0485 ,  B32B5/26 ,  Y10S428/911

    摘要： An armor system useful, for example, as a shroud, comprising a first pliable, cut resistant fibrous layer and a second pliable fibrous layer is disclosed. The first layer is arranged to receive an impact from a large projectile prior to the second layer and engages the projectile to slow its velocity. The second layer is substantially coextensive with the first and dissipates the incoming energy of the impact to resist complete penetration of the second layer by the projectile, preferably by deforming in response to the impact. Both layers comprise fibers having a tensile modulus of at least about 200 g/d, and an energy-to-break of at least about 8 J/g and a tenacity equal to or greater than about 10 g/d. In another embodiment, the layers are reversed relative to the impact face of the system so that the second layer becomes the first layer and is resistant to projectiles impacting the system, while the first layer becomes the second layer and resists deformation of the system by projectile impacts. Any projectile which completely penetrates the first layer is engaged by the second layer to slow its velocity and prevent complete penetration of the second layer. This armor system provides excellent ballistic resistance with enhanced deformation control.

    摘要翻译： 公开了一种可用于例如护罩的装甲系统，其包括第一柔韧的，耐切割的纤维层和第二柔韧的纤维层。 第一层被设置为在第二层之前接收来自大型抛射体的冲击，并且与放射体接合以减慢其速度。 第二层与第一层基本上共同延伸并且消散冲击的进入能量，以抵抗抛射体完全穿透第二层，优选地通过响应于冲击而变形。 两层均包含拉伸模量为至少约200g / d，断裂能为至少约8J / g，强度等于或大于约10g / d的纤维。 在另一个实施例中，层相对于系统的冲击面反转，使得第二层变成第一层并且抵抗撞击系统的弹丸，而第一层变成第二层并且通过弹射抵抗系统的变形 影响。 完全穿透第一层的任何抛射体都被第二层接合，以减缓其速度并阻止第二层的完全穿透。 该装甲系统提供优异的防弹性，增强变形控制。

    Fiber for reinforcing plastic composites and reinforced plastic composites therefrom
    7.
    发明授权
    Fiber for reinforcing plastic composites and reinforced plastic composites therefrom 失效
    用于增强塑料复合材料和增强塑料复合材料的纤维

    公开(公告)号：US4880871A

    公开(公告)日：1989-11-14

    申请号：US136080

    申请日：1987-12-21

    申请人： David S. Cordova ,  David R. Coffin ,  Stanley D. Lazarus ,  Steven A. Young

    发明人： David S. Cordova ,  David R. Coffin ,  Stanley D. Lazarus ,  Steven A. Young

    IPC分类号： C08J5/06 ,  D06M15/507

    CPC分类号： D06M15/507 ,  C08J5/06

    摘要： A high tenacity fiber for reinforcing plastic composites, the fiber being selected from the group consisting of polyester, aliphatic polyamide, and combinations thereof. The fiber is treated with a composition comprising an aqueous solution of carboxyl-terminated, oil-free alkyd resins based on an aliphatic glycol or glycols or a glycol ether or ethers containing 2 to 12 carbon or carbon plus ether oxygens with a combination of aromatic di- or trifunctional carboxylic acids, said resins having a degree of esterification below the gel point of the resins to enhance stiffness of the fiber for cutting.

    摘要翻译： 用于增强塑料复合材料的高强度纤维，该纤维选自聚酯，脂族聚酰胺及其组合。 纤维用包含基于脂族二醇或二醇或二醇醚的羧基封端的无油醇酸树脂的水溶液或含有2至12个碳或碳加上醚氧的醚的组合物与芳族二 - 或三官能羧酸，所述树脂具有低于树脂凝胶点的酯化度，以增强用于切割的纤维的刚度。

    Armor systems
    8.
    发明授权
    Armor systems 失效

    公开(公告)号：US5440965A

    公开(公告)日：1995-08-15

    申请号：US112925

    申请日：1993-08-30

    申请人： David S. Cordova ,  Kevin M. Kirkland

    发明人： David S. Cordova ,  Kevin M. Kirkland

    IPC分类号： B32B5/26 ,  D04H13/00 ,  F41H5/04

    CPC分类号： F41H5/0485 ,  B32B5/26 ,  Y10S428/911

    摘要： An armor system useful, for example, as a shroud, comprising a first pliable, cut resistant fibrous layer and a second pliable fibrous layer is disclosed. The first layer is arranged to receive an impact from a large projectile prior to the second layer and engages the projectile to slow its velocity. The second layer is substantially coextensive with the first and dissipates the incoming energy of the impact to resist complete penetration of the second layer by the projectile, preferably by deforming in response to the impact. Both layers comprise fibers having a tensile modulus of at least about 200 g/d, and an energy-to-break of at least about 8 J/g and a tenacity equal to or greater than about 10 g/d. In another embodiment, the layers are reversed relative to the impact face of the system so that the second layer becomes the first layer and is resistant to projectiles impacting the system, while the first layer becomes the second layer and resists deformation of the system by projectile impacts. Any projectile which completely penetrates the first layer is engaged by the second layer to slow its velocity and prevent complete penetration of the second layer. This armor system provides excellent ballistic resistance with enhanced deformation control.

    Organic reinforcing fibers with bundle separation during fiber cutting and storage
    10.
    发明授权
    Organic reinforcing fibers with bundle separation during fiber cutting and storage 失效
    有机增强纤维在纤维切割和储存期间具有束分离

    公开(公告)号：US4880704A

    公开(公告)日：1989-11-14

    申请号：US174044

    申请日：1988-03-28

    申请人： Colleen W. Cordova ,  David S. Cordova

    发明人： Colleen W. Cordova ,  David S. Cordova

    IPC分类号： D06M15/41

    CPC分类号： D06M15/41 ,  Y10T428/2907 ,  Y10T428/2933 ,  Y10T428/2965 ,  Y10T428/31786

    摘要： The invention relates to a high tenacity reinforcing fiber having improved partitioning properties selected from the group consisting of polyester, aliphatic polyamide, and combinations thereof, for reinforcing plastic composites, said fiber being coated to enhance stiffness of the fiber for cutting with(a) 3 to 12 weight percent, based on weight of fiber of carboxyl-terminated, oil-free alkyd resin which is the reaction product of at least one aliphatic glycol containing 2 to 12 carbons with a combination of aromatic di- or trifunctional carboxylic acids and, optionally, an unsaturated aliphatic carboxylic acid, said resin having a degree of esterification below the gel point of the resin, and(b) 0.5 to 2 weight percent vinyl chloride copolymer having a glass transition termperature of greater than about 60.degree. C.

    摘要翻译： 本发明涉及一种具有改进的分选性能的高韧性增强纤维，其选自聚酯，脂肪族聚酰胺及其组合，用于增强塑料复合材料，所述纤维被涂覆以增强用于切割的纤维的刚度（a）3 至12重量％，基于羧基封端的无油醇酸树脂的纤维重量，其为至少一种含有2至12个碳的脂族二醇与芳族二 - 或三官能羧酸的组合的反应产物，以及任选地 ，不饱和脂族羧酸，所述树脂具有低于树脂凝胶点的酯化度，和（b）0.5至2重量％的玻璃化转变温度大于约60℃的氯乙烯共聚物。