Air brake piping
    2.
    发明专利
    Air brake piping 有权
    空气制动管

    公开(公告)号:JP2007245716A

    公开(公告)日:2007-09-27

    申请号:JP2007063340

    申请日:2007-03-13

    Abstract: PROBLEM TO BE SOLVED: To provide a low-cost tube which satisfies demand imposed on an air brake piping relating to the resistance to chemicals, engine oils, zinc chloride and scattered salt, and which has high burst pressure strength and low-temperature impact resistance. SOLUTION: The tube comprises the following layers: I. an outer layer comprising a molding material including up to at least 40 mass%, up to at least 45 mass%, up to at least 50 mass%, up to at least 55 mass%, or up to at least 60 mass% of a polyamide a monomer unit of which has at least eight, at least nine, or at least ten carbon atoms; II. optionally a layer which comprises an adhesive molding material; and III. a layer which comprises a polypropylene molding material. Advantageously, wherein these layers are directly combined. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种低成本的管,其满足对耐化学品,发动机油,氯化锌和散盐的耐空气制动管道的要求,并且具有高爆破压力强度和低爆破压力, 耐温冲击性。 解决方案:该管包括以下层:I.包含模塑材料的外层,其包括至多40质量%,至多45质量%,至多至少50质量%,至多至少 55质量%或至多60质量%的聚合物,其单体单元具有至少8个,至少9个或至少10个碳原子; II。 任选地包括粘合剂模制材料的层; 和III。 包括聚丙烯成型材料的层。 有利地,其中这些层被直接组合。 版权所有(C)2007,JPO&INPIT

    4.
    发明专利
    未知

    公开(公告)号:AT531512T

    公开(公告)日:2011-11-15

    申请号:AT07803372

    申请日:2007-09-10

    Abstract: A pipe, which comprises the following layers: I. an exterior layer composed of a moulding composition which comprises at least 40% by weight of a polyamide whose monomer units contain, on average, at least 8 carbon atoms, III. an intermediate layer composed of a moulding composition which comprises the following components: a) from 70 to 99% by weight of polyamide, selected from PA6, PA66, PA6/66 and mixtures thereof and b) from 1 to 30% by weight of plasticizer, where the moulding composition comprises no impact modifier, and V. an interior layer composed of a moulding composition which comprises at least 40% by weight of a polyamide whose monomer units contain, on average, at least 8 carbon atoms, where a) the exterior diameter of the pipe is in the range from 6 to 20 mm, b) the wall thickness is in the range from 1.0 to 2.0 mm and c) the thickness of the polypropylene layer is from 25 to 75% of the wall thickness, is used as air-brake line which can be produced at low cost and which has high bursting strength and good low-temperature impact resistance.

    5.
    发明专利
    未知

    公开(公告)号:DE102006011493A1

    公开(公告)日:2007-09-20

    申请号:DE102006011493

    申请日:2006-03-14

    Applicant: DEGUSSA

    Abstract: Pipe comprises layers, which are an outer layer (a) of molded mass containing at least 40 wt.% of a polyamide, whose monomer units in the agent contains 8 carbon atoms and a layer (c) of polypropylene molded mass, where the outer diameter of the pipe is 6-20 mm, wall thickness lies at 1-2 mm and the thickness of the polypropylene molded mass layer amounts to 25-75% of the wall thickness.

    6.
    发明专利
    未知

    公开(公告)号:DE102005031491A1

    公开(公告)日:2007-01-11

    申请号:DE102005031491

    申请日:2005-07-04

    Applicant: DEGUSSA

    Abstract: The use of moulding materials (I) containing (a) 100 parts by weight (pts. wt.) polyamide and (b) 0.005-10 pts. wt. of a compound (II) with at least two carbonate units, for coextrusion with a moulding material (III) based on a high-melting polymer with a crystallite melting point (Tm) of at least 255 deg C and/or a glass transition point(Tg)of at least 180 deg C. Independent claims are included for (1) a method for the production of multilayer composites by making a polyamide moulding material, mixing this with 0.005-10 pts. wt. (II) per 100 pts. wt. polyamide, optionally storing and/or transporting the mixture and then coextruding it with (III) (2) multilayer composites obtained by this method .

    7.
    发明专利
    未知

    公开(公告)号:BR0002904A

    公开(公告)日:2001-01-30

    申请号:BR0002904

    申请日:2000-06-28

    Applicant: DEGUSSA

    Abstract: The composite includes a coupling layer comprising a graft copolymer from: (a) a polyamine with at least 4 nitrogen atoms and a number-average molecular weight (Mn) of at least 146; and (b) polyamide-forming monomers (lactams, omega -amino-acids and/or equimol. combinations of diamines and dicarboxylic acids). A thermoplastic multilayer composite comprises layers (I) and (II) of different thermoplastic moulding materials and an interlayer (III) of a coupling agent. At least 5 wt% of (III) consists of a graft copolymer derived from: (a) 0.5-25 wt% (based on the copolymer) of a polyamine with at least 4 nitrogen atoms and a Mn of at least 146; and (b) polyamide-forming monomers selected from lactams, omega -aminocarboxylic acids or equimolar combinations of diamines and dicarboxylic acids. An Independent claim is also included for moulding materials containing: (A) 5-60 parts by weight (pts. wt.) of a graft copolymer as above; (B) 10-85 pts. wt. of a polyamide; (C) 10-85 pts. wt. of a polyester; and (D) not more than 40 wt% (based on A + B + C) of an impact-modifying rubber and/or conventional auxiliary substances or additives.

    8.
    发明专利
    未知

    公开(公告)号:BRPI0700736A

    公开(公告)日:2007-11-06

    申请号:BRPI0700736

    申请日:2007-03-14

    Applicant: DEGUSSA

    Abstract: Pipe comprises layers, which are an outer layer (a) of molded mass containing at least 40 wt.% of a polyamide, whose monomer units in the agent contains 8 carbon atoms and a layer (c) of polypropylene molded mass, where the outer diameter of the pipe is 6-20 mm, wall thickness lies at 1-2 mm and the thickness of the polypropylene molded mass layer amounts to 25-75% of the wall thickness.

    9.
    发明专利
    未知

    公开(公告)号:AT272497T

    公开(公告)日:2004-08-15

    申请号:AT00109633

    申请日:2000-05-05

    Applicant: DEGUSSA

    Abstract: The composite includes a coupling layer comprising a graft copolymer from: (a) a polyamine with at least 4 nitrogen atoms and a number-average molecular weight (Mn) of at least 146; and (b) polyamide-forming monomers (lactams, omega -amino-acids and/or equimol. combinations of diamines and dicarboxylic acids). A thermoplastic multilayer composite comprises layers (I) and (II) of different thermoplastic moulding materials and an interlayer (III) of a coupling agent. At least 5 wt% of (III) consists of a graft copolymer derived from: (a) 0.5-25 wt% (based on the copolymer) of a polyamine with at least 4 nitrogen atoms and a Mn of at least 146; and (b) polyamide-forming monomers selected from lactams, omega -aminocarboxylic acids or equimolar combinations of diamines and dicarboxylic acids. An Independent claim is also included for moulding materials containing: (A) 5-60 parts by weight (pts. wt.) of a graft copolymer as above; (B) 10-85 pts. wt. of a polyamide; (C) 10-85 pts. wt. of a polyester; and (D) not more than 40 wt% (based on A + B + C) of an impact-modifying rubber and/or conventional auxiliary substances or additives.

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