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    • 5. 发明申请
    • POLYAMIDE RESIN COMPOSITION FOR PORTABLE ELECTRONIC DEVICE AND MOLDED ARTICLE FOR PORTABLE ELECTRONIC DEVICE
    • 用于便携式电子设备的聚酰胺树脂组合物和便携式电子设备的模制品
    • US20150080516A1
    • 2015-03-19
    • US14542320
    • 2014-11-14
    • Mitsubishi Engineering-Plastics Corporation
    • Teruhisa KUMAZAWATakahiro TakanoKei Morimoto
    • C08K7/14C08L77/06C08K3/34
    • C08L77/00B29C45/0001B29C45/0005B29K2077/00B29L2031/445C08J5/047C08J5/08C08J2377/00C08J2377/02C08J2377/06C08K7/14C08K2201/016C08L53/02C08L53/025C08L77/02C08L77/06C08L2205/02C08L2666/20C08L2666/24
    • Provided is a polyamide resin composition having particularly excellent strength and low warpage by virtue of being compounded with a glass fiber and suited as a material for portable electronic devices that are becoming thinner and lighter in weight in recent years.A polyamide resin composition for a portable electronic device, including (A) a polyamide resin, (B) a glass fiber having an elongated cross-section with an aspect ratio, defined by the formula shown below, of 2.5 or more, and optionally (C) a glass fiber having a circular cross-section with a diameter of 3 to 30 μm, wherein the ratio (by weight) of the component (B) to the component (c) is 3:7 to 10:0, wherein the proportion of the component (A) is 60 to 34% by weight, and the proportion of the component (B) or the proportion of the sum of the components (B) and (C) is 40 to 66% by weight with the proviso that the total sum of the above components is 100% by weight, and wherein the polyamide composition shows a tensile strength of 200 MPa or higher as measured for an ISO test piece thereof, Aspect ratio=(Major axis length D2 of the cross-section of the glass fiber)/(Minor axis length D1 of the cross-section of the glass fiber).
    • 本发明提供一种具有特别优异的强度和低翘曲的聚酰胺树脂组合物,其与玻璃纤维复合,并且适合作为近年来变得越来越薄且重量更轻的便携式电子设备的材料。 一种用于便携式电子设备的聚酰胺树脂组合物,其包含(A)聚酰胺树脂,(B)具有由下式表示的纵横比的细长横截面为2.5或更大的玻璃纤维,以及任选( C)具有直径为3至30μm的圆形横截面的玻璃纤维,其中组分(B)与组分(c)的重量比(重量)为3:7至10:0,其中 成分(A)的比例为60〜34重量%,成分(B)的比例或成分(B)和(C)之和的比例为40〜66重量%,条件是 上述成分的总量为100重量%,其中聚酰胺组合物的ISO试验片的拉伸强度为200MPa以上,纵横比=(截面的主轴长度D2 的玻璃纤维)/(玻璃纤维的横截面的小轴长度D1)。
    • 6. 发明授权
    • Synthetic resin needles and synthetic resin composition for needles
    • 合成树脂针和合成树脂组合物针
    • US08038658B2
    • 2011-10-18
    • US11992383
    • 2006-09-21
    • Hiromasa Kohama
    • Hiromasa Kohama
    • A61M5/32
    • B29C45/0005A61M5/158A61M5/162A61M5/3286A61M5/329A61M2207/00B29K2105/12C08J5/047
    • A medical needle is made of a synthetic resin which is reinforced, including the point part of the needle, to reduce deformation during puncture, even when the needle is produced by injection molding. The needle is made of a synthetic resin composition which includes synthetic resin and reinforcing fiber having a length of 80 μm or below and reinforcing fiber having a length exceeding 80 μm. The number ratio of the former fiber to the whole fiber component is 40% to 90%. A synthetic resin composition for needles includes a synthetic resin and a reinforcing fiber component, wherein the composition is prepared by adding at least two kinds of fibers, namely a fiber having a mean length of 1 mm to 10 mm and a fiber having a mean length of 10 μm to 100 μm to the synthetic resin and kneading the obtained mixture.
    • 医用针由合成树脂制成,其包括针的部分被加强,以减少穿刺期间的变形,即使通过注射成型制造针。 该针由合成树脂和长度为80μm以下的增强纤维和长度超过80μm的增强纤维的合成树脂组合物制成。 前纤维与全纤维成分的数量比为40%〜90%。 用于针的合成树脂组合物包括合成树脂和增强纤维组分,其中所述组合物通过加入至少两种纤维,即平均长度为1mm至10mm的纤维和平均长度的纤维 对合成树脂为10μm〜100μm,并捏合所得混合物。
    • 8. 发明授权
    • Electrically conductive polyester molding composition having a high quality surface finish
    • 具有高质量表面光洁度的导电性聚酯模塑组合物
    • US07655297B2
    • 2010-02-02
    • US11875400
    • 2007-10-19
    • Probir K. GuhaMichael J. Siwajek
    • Probir K. GuhaMichael J. Siwajek
    • H01B1/24B32B5/16
    • H01B1/24C08J5/042C08J5/047C08J2367/06Y10T428/25Y10T428/31786
    • A molding compound formulation is provided that includes a unsaturated polyester, a low profile additive, and high surface area conductive carbon black particulate. The carbon black is dispersed in at least one of the unsaturated polyester and the low profile additive to produce a cured panel having a surface resistivity value of between 1×105-108Ω, and a Diffracto analysis D number of less than 100 when cured against a mold platen having a Diffracto analysis D number of 25. A process for producing such a molding compound panel is also provided that includes mixing through rotary mechanical stirring the high surface area conductive carbon black particulate into one side of the molding compound formulation under conditions that satisfy: ln(viscosity)≦−0.82{ln(RPM)}+12.734  (I) where viscosity is in Centipoise and RPM denotes revolutions per minute.
    • 提供了一种模制化合物配方,其包括不饱和聚酯,低轮廓添加剂和高表面积导电炭黑颗粒。 碳黑分散在不饱和聚酯和低分子添加剂中的至少一种中,以产生表面电阻率值在1×10 -10 -10 O 10之间的固化面板,当与模具台板固化时的衍射分析D数小于100 具有衍射分析D号25.还提供了一种制备这种模塑复合板的方法,其包括通过在满足以下条件的条件下将高表面积导电炭黑颗粒旋转机械搅拌至模塑料配方的一侧进行混合:ln (粘度)<= - 0.82 {ln(RPM)} + 12.734(I)其中粘度为厘泊,RPM表示每分钟转数。
    • 10. 发明申请
    • Methods for making fiber reinforced polypropylene composites using pre-cut fiber
    • 使用预切纤维制造纤维增强聚丙烯复合材料的方法
    • US20080237914A1
    • 2008-10-02
    • US12079340
    • 2008-03-26
    • Arnold LustigerJennifer Harting WardPatrick BormannDavid Jon StarzAlan J. Oshinski
    • Arnold LustigerJennifer Harting WardPatrick BormannDavid Jon StarzAlan J. Oshinski
    • B29B9/06B29C47/60
    • C08F255/02B29C48/39B29C48/535B29C48/57C08J3/201C08J5/046C08J5/047C08J2323/10C08K3/01C08K5/00C08L23/10C08L23/12C08L33/20C08L51/06C08L67/00C08L2205/16C08L2666/20C08L2666/06C08L2666/02C08L2666/18C08L2666/14C08L2666/04
    • The present disclosure is directed generally to methods for making fiber reinforced polypropylene composite pellets using pre-cut fiber fed to a compounding extruder by improved fiber feeder systems. One form of the method includes feeding into a compounding extruder at least 25 wt % polypropylene based polymer, from 5 to 60 wt % pre-cut organic fiber, and from 0 to 60 wt % inorganic filler; and extruding, cooling and pelletizing the resultant mixture of components to form fiber reinforced polypropylene composite pellets; wherein the pre-cut organic fiber is fed from a feeder including a feeder hopper, one or more conditioning augers/agitators, one or more metering augers below the feeder hopper, and a means for controlling the speed of the conditioning augers/agitators and metering augers; and wherein an article molded from the pellets has a flexural modulus of at least 2.07 GPa and exhibits ductility during instrumented impact testing. In another form, the feeder includes a feeder hopper, two or more counter-rotating metering rollers, one or more separating rollers below the metering rollers, and a means for controlling the speed of the metering rollers and separating rollers. In yet another form, a circle feeder may be used to feed the pre-cut fiber.
    • 本公开一般涉及使用通过改进的纤维馈送系统进料到配混挤出机的预切纤维来制备纤维增强聚丙烯复合颗粒的方法。 该方法的一种形式包括将至少25重量%的聚丙烯基聚合物,5至60重量%的预切割有机纤维和0至60重量%的无机填料进料到配混挤出机中; 挤出,冷却和造粒所得的组分混合物以形成纤维增强聚丙烯复合颗粒; 其中预切的有机纤维从包括进料器料斗,一个或多个调理螺旋推运器/搅拌器,在进料斗下方的一个或多个计量螺旋推运器的进料器进给,以及用于控制调节螺旋推料器/搅拌器和计量的速度的装置 螺旋钻 并且其中由颗粒模制的制品具有至少2.07GPa的弯曲模量并且在仪表式冲击试验期间具有延展性。 在另一种形式中,进料器包括进料斗,两个或多个反向旋转计量辊,计量辊下方的一个或多个分离辊,以及用于控制计量辊和分离辊的速度的装置。 在另一种形式中,可以使用圆形进给器来进给预切割的纤维。