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    • 1. 发明申请
    • PLASTIC TUBE FOR AIR-BRAKE SYSTEMS
    • 用于制动系统的塑料管
    • WO2007082710A1
    • 2007-07-26
    • PCT/EP2007/000332
    • 2007-01-16
    • DSM IP ASSETS B.V.LUMIG VAN, LambertKOENEN, JacobBLOM, Dirk, GijsbertHEUVEL VAN DEN, Paul, Willem, Jan
    • LUMIG VAN, LambertKOENEN, JacobBLOM, Dirk, GijsbertHEUVEL VAN DEN, Paul, Willem, Jan
    • B32B1/08F16L11/04
    • B32B27/36B32B1/08B32B27/08B32B27/20B32B27/365B32B2250/02B32B2250/244B32B2264/108B32B2274/00B32B2307/306B32B2307/714B32B2605/08Y10T428/1352Y10T428/1383Y10T428/139Y10T428/1393
    • The invention relates to a stretched plastic tube obtainable from a polymer composition comprising a copolyester elastomer, and comprising two end- parts and an elongated part between the end-parts wherein at least one end-part is a stretched end-part obtained by mechanically stretching of at least a section of that end part, characterized in that the stretched end-part comprises an outer surface layer area consisting of a first thermoplastic polymer composition (A) comprising a first copolyester elastomer (A-1) and 0 - 0.2 wt.% carbon black relative to the total weight of the thermoplastic polymer composition (A). The invention also relates to a Plastic tube obtainable from a polymer composition comprising a copolyester elastomer, wherein the plastic tube is a plastic tube comprising: (i) an outer surface layer consisting of a first thermoplastic polymer composition (A) comprising a first copolyester elastomer (A-1) and 0 - 0.2 wt.% carbon black, relative to the total weight of the thermoplastic polymer composition (A), and (ii) an inner surface layer consisting of a second thermoplastic polymer composition (B) comprising a second copolyester elastomer (B-1), wherein the first thermoplastic polymer composition (A) and the second thermoplastic polymer composition (B) are different.
    • 本发明涉及一种可从包含共聚酯弹性体的聚合物组合物获得的拉伸塑料管,并且包括两个端部和端部之间的细长部分,其中至少一个端部是通过机械拉伸获得的拉伸端部 的至少一部分,其特征在于,所述拉伸的端部包括由包含第一共聚酯弹性体(A-1)和0-0.2重量%的第一热塑性聚合物组合物(A)组成的外表面层区域。 %炭黑相对于热塑性聚合物组合物(A)的总重量。 本发明还涉及一种可由包含共聚酯弹性体的聚合物组合物获得的塑料管,其中塑料管是塑料管,其包括:(i)由第一热塑性聚合物组合物(A)组成的外表面层,该第一热塑性聚合物组合物包含第一共聚酯弹性体 (A-1)和0-0.2重量%的炭黑相对于热塑性聚合物组合物(A)的总重量,和(ii)由第二热塑性聚合物组合物(B)组成的内表面层,其包含第二 共聚酯弹性体(B-1),其中,第一热塑性聚合物组合物(A)和第二热塑性聚合物组合物(B)不同。
    • 7. 发明申请
    • PROCESS FOR MAKING A COMPRESSION SPRING MEMBER FROM COPOLYETHERESTER
    • 从酚醛树脂制备压片弹簧的方法
    • WO2004109146A1
    • 2004-12-16
    • PCT/NL2004/000404
    • 2004-06-08
    • DSM IP ASSETS B.V.KOENEN, JacobLAMBI, Ronald, John
    • KOENEN, JacobLAMBI, Ronald, John
    • F16F1/36
    • F16F1/3605B29C67/00B29K2019/00B29K2067/006
    • The invention relates to a process for making a compression spring member comprising the steps of making a preform from a copolyetherester composition; submitting the preform to at least one compression cycle, comprising the steps of applying a force to compress the preform in one direction to an extent greater than 30% of its original size and releasing the force from the compressed preform; wherein a copolyeth e rester composition is applied that comprises 1) at least 50 mass% of at least one copolyetherester consisting essentially of polyester hard segments that are built up from repeating units derived from at least one alkylene diol and at least one aromatic dicarboxylic acid and soft segments derived from a poly(propylene oxide)diol; and 2) 0,01 - 2 mass% of a nucleating agent. This process of making compression spring members shows better consistency and reproducibility. A further advantage is that an annealing step can be significantly reduced in time, or even be omitted. The invention further relates to a compression spring member obtainable by said process, and to a compression spring assembly comprising at least one such compression spring member.
    • 本发明涉及一种用于制造压缩弹簧构件的方法,包括以下步骤:从共聚醚酯组合物制备预成型体; 将所述预成型件提交至至少一个压缩循环,包括以下步骤:在一个方向上施加力以将所述预成型件压缩至大于其原始尺寸的30%的程度并释放来自压缩预成型件的力; 其中施用共聚物复合组合物,其包含1)至少50质量%的至少一种共聚醚酯基团,其基本上由聚酯硬链段组成,所述聚酯硬链段由衍生自至少一种亚烷基二醇和至少一种芳族二羧酸的重复单元构成, 衍生自聚(环氧丙烷)二醇的软链段; 和2)0.01-1质量%的成核剂。 制造压缩弹簧构件的这个过程显示出更好的一致性和再现性。 另一个优点是退火步骤可以在时间上显着减少,甚至可以省略。 本发明还涉及一种通过所述方法可获得的压缩弹簧构件,以及包括至少一个这种压缩弹簧构件的压缩弹簧组件。