USE OF A COMPOSITION FOR CONTACT WITH SUPERCRITICAL MEDIA
    32.
    发明申请
    USE OF A COMPOSITION FOR CONTACT WITH SUPERCRITICAL MEDIA 有权
    使用与超临界媒体联系的组合物

    公开(公告)号:US20110209768A1

    公开(公告)日:2011-09-01

    申请号:US13128297

    申请日:2009-10-07

    Abstract: A moulding composition which comprises at least 50% by weight of the following constituents:a) from 0 to 99 parts by weight of polyamide, andb) from 1 to 100 parts by weight of polyamide elastomer, selected from the group of polyetheresteramide and polyetheramide,where the total of the parts by weight is 100 and where the moulding composition comprises from 0 to 9% by weight of plasticizer,is used for the production of a moulding for contact with a supercritical medium, and preferably for the production of an inner thermoplastics layer in a flexible pipe or rigid pipe, in which a supercritical medium is conveyed. Low or zero plasticizer content eliminates any significant occurrence of problems such as increased stiffness and longitudinal shrinkage.

    Abstract translation: 一种模塑组合物,其包含至少50重量%的以下组分:a)0至99重量份的聚酰胺,和b)1至100重量份的选自聚醚酯酰胺和聚醚酰胺的聚酰胺弹性体 ,其中重量份的总量为100,并且其中模塑组合物包含0至9重量%的增塑剂,用于生产与超临界介质接触的模制品,并且优选用于生产内部 柔性管或刚性管中的热塑性塑料层,其中传送超临界介质。 低或零增塑剂含量消除了任何显着的问题,例如增加刚度和纵向收缩。

    Process for producing moldings with an increase in the melt stiffness
    38.
    发明授权
    Process for producing moldings with an increase in the melt stiffness 有权
    具有增加熔体刚度的生产模制品的方法

    公开(公告)号:US08647551B2

    公开(公告)日:2014-02-11

    申请号:US11354114

    申请日:2006-02-15

    Abstract: A process for producing moldings with condensing-up of a polyamide molding composition whose polyamide component contains, as a result of the method of preparation, at least 5 ppm of phosphorus in the form of an acidic compound by means of a compound having at least two carbonate units, wherein a) from 0.001 to 10% by weight, based on the polyamide, of a salt of a weak acid is added to the polyamide molding composition prior to compounding or during compounding, b) a mixture of the finished composition and the compound having at least two carbonate units is prepared, c) the mixture is, if appropriate, stored and/or transported and d) the mixture is subsequently processed to produce the molding, with the condensing-up occurring only in this step, effects a significant increase in the melt stiffness combined with moderate processing pressures, which considerably simplifies, in particular, the production of hollow bodies and hollow profiles having large diameters.

    Abstract translation: 一种聚酰胺成型组合物的制造用模制品的制造方法,其聚酰胺成分作为制备方法的结果,含有至少5ppm的酸性化合物形式的磷,该化合物具有至少两个 碳酸酯单元,其中a)基于聚酰胺的0.001至10重量%的弱酸盐在配混之前或在配混期间加入到聚酰胺模塑组合物中,b)成品组合物和 制备具有至少两个碳酸酯单元的化合物,c)如果合适的话,该混合物被储存和/或运输,以及d)随后将该混合物加工以产生模制物,其中仅在该步骤中发生冷凝, 结合中等加工压力的熔体刚度的显着增加,这特别地简化了具有大直径的中空体和中空型材的生产。

    FLEXIBLE PIPE HAVING A MULTI-LAYERED STRUCTURE
    40.
    发明申请
    FLEXIBLE PIPE HAVING A MULTI-LAYERED STRUCTURE 有权
    具有多层结构的柔性管道

    公开(公告)号:US20130032239A1

    公开(公告)日:2013-02-07

    申请号:US13640552

    申请日:2011-03-18

    Abstract: The invention relates to a flexible pipe having a multi-layered structure comprising unbonded layers, comprising an inner lining having the following layer arrangement: a) an innermost layer made of a fluoropolymer molding compound, b) an intermediate layer made of a molding compound on the basis of an olefinic polymer, which is selected from the group consisting of polyethylene, isotactic polypropylene, syndiotactic polypropylene and syndiotactic polystyrene, c) an outer layer made of a polyamide molding compound, wherein the layer made of a polyamide molding compound is particularly efficiently protected against hydrolysis. The pipe is thus particularly suited for offshore applications in oil or gas production.

    Abstract translation: 本发明涉及一种具有多层结构的柔性管,包括无粘结层,包括具有以下层布置的内衬:a)由氟聚合物模塑料制成的最内层,b)由模塑料制成的中间层 烯属聚合物的基础,其选自聚乙烯,全同立构聚丙烯,间同立构聚丙烯和间同立构聚苯乙烯,c)由聚酰胺模塑料制成的外层,其中由聚酰胺模塑料制成的层特别有效 防止水解。 因此,管道特别适用于油气生产中的海上应用。

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