Steel cord consisting of an assembly of concentric layers of filaments,
each layer having specified radius and twist pitch
    72.
    发明授权
    Steel cord consisting of an assembly of concentric layers of filaments, each layer having specified radius and twist pitch 失效
    钢丝绳组合的钢丝绳,每个具有指定的RADIUS和TWIT PITCH的层的层

    公开(公告)号:US5074345A

    公开(公告)日:1991-12-24

    申请号:US406429

    申请日:1989-09-12

    申请人: Christophe Penant

    发明人: Christophe Penant

    摘要: An assembly (100) for the reinforcing of an article of plastic and/or rub, characterized by the following features:(a) it comprises two adjacent concentric layers (1, 2) of filaments (10, 20), the filaments (10, 20) having their axis (O.sub.1, O.sub.2) arranged, within each of the layers, substantially on a circle (C.sub.1, C.sub.2) of radius R.sub.1, R.sub.2 ; in each layer (1, 2) the filaments (10, 20) are wound in the same direction and have the same pitch (P.sub.1, P.sub.2);(b) the layers (1, 2) have the same direction of winding;(c) R.sub.1, R.sub.2, P.sub.1, P.sub.2 are in accord with the relationship:P.sub.1 >P.sub.2 >P.sub.1 .times.[1-2(R.sub.2 -R.sub.1)/R.sub.2 ].Articles reinforced by such assemblies, for instance pneumatic tires.

    摘要翻译: 一种用于加强塑料和/或橡胶制品的组件(100),其特征在于具有以下特征:(a)其包括两根相邻的细丝(10,20)的同心层(1,2),所述细丝(10 ,20),它们的轴线(O1,O2)布置在每个层内,基本上在半径R1,R2的圆(C1,C2)上; 在每个层(1,2)中,细丝(10,20)沿同一方向缠绕并且具有相同的间距(P1,P2); (b)层(1,2)具有相同的卷绕方向; (c)R1,R2,P1,P2与P1> P2> P1x [1-2(R2-R1)/ R2]的关系一致。 由这种组件增强的制品,例如充气轮胎。

    Polyester fiber for industrial use and process for preparation thereof
    73.
    发明授权
    Polyester fiber for industrial use and process for preparation thereof 失效
    工业用聚酯纤维及其制备方法

    公开(公告)号:US5049447A

    公开(公告)日:1991-09-17

    申请号:US346472

    申请日:1989-05-02

    摘要: Disclosed is a polyethylene terephthalate untwisted multifilament which satisfies the following requirements (A), (B), (C) and (D);(A) the intrinsic viscosity [IV] is 0.97 to 1.15;(B) the amorphous orientation function [fa] is not larger than 0.55;(C) the tenacity [T] (g/d), the shrinkage [.DELTA.S] (%) as measured after standing in dry air at 150.degree. C. for 30 minutes, the medium elongation [ME] (%) under a load of 4.5 g/d, and the dimensional stability index [Y] expressed by the formula: Y=ME.sup.0.81 +.DELTA.S+1.32 are within ranges defined by the following formulae (a), (b), (c), (d) and (e):0.33Y+5.55.ltoreq.T.ltoreq.0.33Y+6.50 (a),8.0.ltoreq.T.ltoreq.9.5 (b),8.5.ltoreq.Y.ltoreq.10.5 (c),5.ltoreq.ME.ltoreq.10 (d), and2.ltoreq..DELTA.S.ltoreq.g (e);and (d) the elongation at break is at least 11% and the product of the tenacity and elongation, which is defined by: ##EQU1## is 30 to 36.

    Reinforcing layers for bias tires
    76.
    发明授权
    Reinforcing layers for bias tires 失效
    用于偏置轮胎的加强层

    公开(公告)号:US4957799A

    公开(公告)日:1990-09-18

    申请号:US238817

    申请日:1988-08-31

    摘要: Reinforcing layers for bias tires comprising a laminated structure of a steel cord ply and composite cord plies made of aramid yarns and nylon yarns, said composite cord plies being disposed radially outwardly of the steel cord ply maintaining a full space between steel cords and composite cords and a nominal total denier of said composite cords being in the range of 4,000-10,000.

    摘要翻译: 用于偏置轮胎的加强层包括由芳族聚酰胺纱线和尼龙纱线制成的钢丝绳帘布层和复合帘布层的叠层结构,所述复合帘布层沿钢帘线层的径向外侧设置,保持钢帘线和复合帘线之间的完整空间, 所述复合帘线的标称总旦数在4,000-10,000的范围内。

    Process for producing high strength polyester yarn for improved fatigue
resistance
    78.
    发明授权
    Process for producing high strength polyester yarn for improved fatigue resistance 失效
    生产高强度聚酯纱线以提高耐疲劳性能的方法

    公开(公告)号:US4867936A

    公开(公告)日:1989-09-19

    申请号:US281845

    申请日:1988-12-08

    CPC分类号: D01F6/62 B60C9/0042

    摘要: High strength polyester multifilament yarn of improved dimensional stability, which has the proper combination of an intrinsic viscosity of at least 0.90, relatively low work loss and a high degree of toughness, is incorporated as tire cord into a rubber tire for reinforcement to provide an important improvement in fatigue life and retained fatigue strength. The continuous melt-spin process comprises the steps of feeding prepolymer to a first finisher vessel to achieve at least 0.4 intrinsic viscosity transferring polymer to a second finisher vessel for a period sufficient to achieve an intrinsic viscosity of at least 0.95, and supplying this polymer to an extrusion spinnerette.

    摘要翻译: 将具有至少0.90的特性粘度,相对低的工作损耗和高韧性的适当组合的高强度聚酯复丝纱作为轮胎帘线加入到用于加强的橡胶轮胎中以提供重要的 改善疲劳寿命和保持疲劳强度。 连续熔融纺丝方法包括以下步骤:将预聚物进料到第一整理剂容器中,以使至少0.4特性粘度转移聚合物至第二整理剂容器达到足以达到至少0.95的特性粘度的时间,并将该聚合物供应至 挤出喷丝板。

    Process for the manufacture of polyester industrial yarn
    79.
    发明授权
    Process for the manufacture of polyester industrial yarn 失效
    聚酯工业纱线的制造工艺

    公开(公告)号:US4867925A

    公开(公告)日:1989-09-19

    申请号:US847066

    申请日:1986-04-01

    摘要: Manufacture of a multifilament polyester yarn which is suitable for use as an industrial yarn, particularly tire yarn, and displays a specific breaking strength at high spinning speeds, the yarn is made in accordance with a process comprising the successive steps of spinning a molten polymer through a plurality of holes, cooling and drawing the resulting filaments, and finally collecting them, the polymer flow in each of the spinneret holes exhibits a core portion having a higher relative viscosity and a sheath portion having a lower relative viscosity, the difference between said relative viscosities amounting to less than 0.100, preferably 0.040-0.003.

    摘要翻译: 制造适合用作工业纱线,特别是轮胎纱线并在高纺丝速度下显示出特定断裂强度的复丝聚酯纱线的纱线是根据包括以下步骤的方法制造的,该方法包括使熔融聚合物通过 多个孔,冷却和拉伸所得长丝,最后收集,每个喷丝孔中的聚合物流显示具有较高相对粘度的芯部分和具有较低相对粘度的鞘部分,所述相对粘度之间的差异 粘度小于0.100,优选为0.040-0.003。