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    Hot-melt prepreg tow apparatus
    2.
    发明授权
    Hot-melt prepreg tow apparatus 失效
    热熔预浸料丝束装置

    公开(公告)号：US5037284A

    公开(公告)日：1991-08-06

    申请号：US230349

    申请日：1988-10-24

    申请人： Richard G. Angell, Jr. ,  Michael J. Michno, Jr. ,  John M. Konrad ,  Kenneth E. Hobbs

    发明人： Richard G. Angell, Jr. ,  Michael J. Michno, Jr. ,  John M. Konrad ,  Kenneth E. Hobbs

    IPC分类号： B29B15/12 ,  B29C70/50

    CPC分类号： B29C70/504 ,  B29B15/122

    摘要： Apparatus for producing resin-impregnated fiber tow or strand in the form of prepreg tape. The apparatus includes unique coating wheels for sunface-coating the strand with molten, flowable resin and a kneading section to work the strand and disperse the molten resin uniformly among and between the individual fibers of the strand. The strand, after chilling, has good dimensional stability and is useful as prepreg in forming composite structures.

    摘要翻译： 用于制备预浸带的形式的树脂浸渍的纤维丝束或绞合线的装置。 该设备包括独特的涂层轮，用于用熔融的可流动的树脂将混合物进行表面涂覆，以及捏合部分来加工股线，并将熔融树脂均匀地分散在股线的单个纤维之间和之间。 在冷却后，该线材具有良好的尺寸稳定性，并且可用作形成复合结构体的预浸料。

    Process for injection molding thermoplastic articles with reduced combustibility
    5.
    发明授权
    Process for injection molding thermoplastic articles with reduced combustibility 失效
    具有降低可燃性的注塑成型热塑性制品的方法

    公开(公告)号：US4185070A

    公开(公告)日：1980-01-22

    申请号：US850370

    申请日：1977-11-10

    申请人： Richard G. Angell, Jr. ,  Laurence H. Gross

    发明人： Richard G. Angell, Jr. ,  Laurence H. Gross

    IPC分类号： B29C44/10 ,  C08K3/22 ,  B28B1/24

    CPC分类号： B29C44/105 ,  C08K3/22

    摘要： A process is disclosed for the production of injection molded thermoplastic articles having reduced combustibility comprising: maintaining a mold cavity at a pre-selected back pressure sufficiently high to substantially prevent foaming of a thermoplastic melt to be injected therein; injecting thermoplastic melt into said mold cavity under a pressure in excess of said back pressure to fill said mold cavity; said thermoplastic melt containing from about 50 to 70% by weight of alumina trihydrate and from about 1 to 12% by weight of water as a liquid processing aid.

    摘要翻译： 公开了一种用于生产具有降低的可燃性的注射成型热塑性制品的方法，包括：将模腔保持在预选的背压足够高以基本上防止要注入的热塑性熔体的发泡; 在超过所述背压的压力下将热塑性熔体注入所述模腔中以填充所述模腔; 所述热塑性熔体包含约50至70重量％的三水氧化铝和约1至12重量％的作为液体加工助剂的水。

    Process for preparing fiber reinforced molded articles
    6.
    发明授权
    Process for preparing fiber reinforced molded articles 失效
    制备纤维增强模制品的方法

    公开(公告)号：US4755575A

    公开(公告)日：1988-07-05

    申请号：US889240

    申请日：1986-07-25

    申请人： Linda A. Domeier ,  Richard G. Angell, Jr.

    发明人： Linda A. Domeier ,  Richard G. Angell, Jr.

    IPC分类号： B29C33/34 ,  B29C41/08 ,  B29C43/50 ,  B29C70/34 ,  B29C70/48 ,  C08F236/22 ,  C08F236/20

    CPC分类号： B29C70/345 ,  B29C43/50 ,  B29C70/48 ,  B29C33/34 ,  B29C41/08 ,  B29K2105/24

    摘要： Described herein is an improved process for rapidly fabricating fiber reinforced thermoset resin articles comprising: (a) providing in a heatable matched metal die mold a bonded web of one or more fibers with a melting point or a glass transition temperature above about 130.degree. C., (b) providing in an accumulator zone a liquid body of a thermosettable organic material having a viscosity determined at 120.degree. C., in the absence of curing agent, of less than about 50 centipoises, which is curable upon heating to a thermoset resin composition, the viscosity of said liquid body being maintained essentially constant in the accumulator zone by keeping its temperature below that at which curing of said materials is substantial, (c) closing said mold containing said web, (d) injecting at least a portion of said thermosettable organic material under pressure from said accumulator zone into the mold to thereby fill the cavity in said mold, (e) initiating the curing of said materials by subjecting the materials to a temperature by heating the mold, which is above the temperature at which the curing of said materials is initiated, and (f) opening said molding and removing the cured thermoset article therefrom, wherein the improvement comprises improving the release of the cured article from the mold by increasing the cross-link density of the cured thermosettable organic material in the molded article. Also described herein are curable molding compositions used for the rapid fabrication of fiber-reinforced thermoset resin articles having improved mold release characteristics.

    摘要翻译： 本文描述了一种用于快速制造纤维增强热固性树脂制品的改进方法，其包括：（a）在可加热匹配的金属模具模具中提供熔点或玻璃化转变温度高于约130℃的一种或多种纤维的粘结纤维网。 ，（b）在蓄能器区域中提供可热固的有机材料的液体体，其在不存在固化剂的情况下在120℃下测定的粘度小于约50厘泊，其在加热到热固性树脂时是可固化的 通过将所述液体的温度保持在低于所述材料固化的温度，使所述液体的粘度保持基本上恒定，（c）封闭含有所述纤维网的所述模具，（d）将至少一部分 所述可热固的有机材料在压力下从所述储存器区进入模具，从而填充所述模具中的空腔，（e）通过主体开始所述材料的固化 通过加热模具将材料加热到温度，该温度高于所述材料的固化开始的温度，和（f）打开所述模制件并从中除去固化的热固性制品，其中改进包括改善 通过增加模塑制品中固化的可热固化有机材料的交联密度，从模具中固化制品。 本文还描述了用于快速制造具有改进的脱模特性的纤维增强热固性树脂制品的可固化模塑组合物。