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    • 2. 发明申请
    • REINFORCED THERMOPLASTIC RESIN AND DEVICE AND METHOD FOR PRODUCING VERY LONG FIBER REINFORCED THERMOPLASTIC RESINS
    • 增强的热塑性树脂和装置以及用于生产非常长的纤维增强热塑性树脂的方法
    • US20090065965A1
    • 2009-03-12
    • US12204025
    • 2008-09-04
    • Stephen T. Bowen
    • Stephen T. Bowen
    • B29C47/00
    • B29B7/42B29B7/487B29B7/728B29B7/7466B29B7/905B29C45/0005B29C45/1816B29C45/48B29C48/06B29C48/12B29C48/156B29C48/2886B29C48/30B29C48/34B29C48/385B29C2045/466B29K2105/06B29K2105/08
    • Improved reinforced thermoplastic resin, and devices and methods for producing the improved reinforced thermoplastic resin. The invention comprises complete fiber strand dispersion and wet out without breaking fiber filaments after cutting the fiber to a designated length. Certain embodiments of the present invention may comprise a zero-shear down screw which rotates very slowly. Thus, the resin and glass fiber bundles are slowly kneaded and the individual filaments unbundled from the fiber bundles resulting in complete wet-out of each filament without creating a pressure flow path for the substrate material and the entrained glass fibers and unbundled filaments. Optimized geometrically-controlled openings may be provided at the end of the down screw, providing further breakage-free kneading of the individual filaments. Certain embodiments may comprise an extended length cutting chamber which allow cutting very long individual fiber lengths. Temperature reduction mechanisms may be provided which provide a thermal block between the down screw assembly and the main frame assembly.
    • 改进的增强热塑性树脂,以及用于生产改进的增强热塑性树脂的装置和方法。 本发明包括在将纤维切割成指定长度之后完全的纤维束分散和湿润而不断裂纤维丝。 本发明的某些实施例可以包括非常缓慢旋转的零剪切向下螺钉。 因此,树脂和玻璃纤维束被缓慢地捏合,并且单根纤维从纤维束中分离出来,导致每个丝的完全润湿,而不产生用于基底材料和夹带的玻璃纤维和未捆扎长丝的压力流动路径。 优选的几何控制的开口可以设置在下螺纹的端部,从而提供单独的细丝的进一步的无破坏的捏合。 某些实施例可以包括延长长度的切割室,其允许切割非常长的单个光纤长度。 可以提供温度降低机构,其在下螺纹组件和主框架组件之间提供热块。