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    • 8. 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。