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    • 1. 发明专利
    • Method for producing long fiber-reinforced thermoplastic resin pellet
    • 用于生产长纤维增强热塑性树脂薄膜的方法
    • JP2011062971A
    • 2011-03-31
    • JP2009217032
    • 2009-09-18
    • Kobe Steel Ltd株式会社神戸製鋼所
    • FUJIURA TAKAYASU
    • B29B9/14B29B9/06B29B15/14B29K105/14C08J5/08
    • B29B15/122B29B9/06B29B9/14B29C47/0011B29C47/0014B29C47/0066B29C47/027B29C47/1045B29C2793/0027C08J5/043C08J2323/10
    • PROBLEM TO BE SOLVED: To produce, with sufficient productivity, a pellet which can equally disperse reinforcing fiber in a molding by easily disintegrating the reinforcing fiber when melting the pellet in a method for producing a long fiber-reinforced thermoplastic resin pellet.
      SOLUTION: In the method for producing the long fiber-reinforced thermoplastic resin pellet 1, a plurality of reinforcing fiber bundles 3 immersed in a molten thermoplastic resin 5 bath are drawn out of the thermoplastic resin 5 bath while twisting reinforcing fiber bundles 3 together to form a strand 8 consisting of the thermoplastic resin 5 covering the reinforcing fiber and the strand 8 is cut to predetermined length to obtain the pellet 1. The strand 8 is drawn while adjusting melt viscosity of the thermoplastic resin so that a melt flow rate is 500 to 1500 g/10 min and a twisting angle θ of the reinforcing fiber bundle 3 to a pulling direction of the strand 8 satisfies a relation: 0°
    • 要解决的问题为了在生产长纤维增强热塑性树脂颗粒的方法中,以足够的生产率生产能够在增强纤维在模制中均匀分散的颗粒,其通过在熔融颗粒时容易地分解增强纤维。 解决方案:在长纤维增强热塑性树脂颗粒1的制造方法中,将浸渍在熔融热塑性树脂5浴中的多个增强纤维束3从加热纤维束3加捻而从热塑性树脂5浴中抽出 一起形成由覆盖增强纤维的热塑性树脂5构成的线8,并且将线8切割成预定长度以获得颗粒1.在调节热塑性树脂的熔融粘度的同时拉伸线材8,使得熔体流动速率 500〜1500g / 10分钟,加强纤维束3与绞合线8的牵引方向的扭转角θ成为0°<θ≤50°的关系。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • PULTRUSION OF FIBER REINFORCED PHENOLIC RESIN MOLDED OBJECT
    • JPH06198751A
    • 1994-07-19
    • JP34911592
    • 1992-12-28
    • KOBE STEEL LTD
    • YAMAMOTO KOJIFUJIURA TAKAYASU
    • B29C70/52B29K61/04C08L61/04C08L61/06B29C67/14
    • PURPOSE:To obtain a fiber reinforced resin molded object free from voids and having good surface properties by a method wherein the reinforcing fibers passing through a heated pultrusion mold is impregnated with a phenolic resin soln. while the phenolic resin soln. is conc. and the impregnated fibers are pulled out while cured and molded. CONSTITUTION:After a concentrating supply device 1 is heated by a heating means 1b, a phenolic resin is supplied into the device 1 from a resin supply port 1c and conc. while kneaded by rotating a kneader 1a. During this period, moisture is discharged from a discharge port 1d. A pultrusion mold device 2 is heated by a heating means 2b and reinforcing fibers 3 are sent into the molding hole 2a of the device 2 and impregnated with the resin supplied from a resin supply port 2c. The impregnated fibers are heated while pulled out along the molding surface of the molding hole 2a to advance the curing of the impregnated resin and molding and the molded one is pulled out by a taking- out roll 5. During this period, moisture is removed from the discharge port 2d. As a result, impregnation is sufficiently performed in the heated pultrusion mold device 2.