Polyetherpolyamide elastomer having low water absorption
    4.
    发明授权
    Polyetherpolyamide elastomer having low water absorption 有权
    具有低吸水性的聚醚聚酰胺弹性体

    公开(公告)号:US06864348B2

    公开(公告)日:2005-03-08

    申请号:US10304708

    申请日:2002-11-27

    Abstract: Polyetherpolyamide elastomer showing a low water absorption, a high stress relaxation, and a high elastic recovery percentage of elongation is obtainable by polymerizing an aminocarboxylic acid compound and/or a lactam compound, a triblock polyetherdiamine compound having the following formula, and a dicarboxylic acid compound: [x is a value of 1 to 20, y is a value of 4 to 50, z is a value of 1 to 20].

    Abstract translation: 通过使氨基羧酸化合物和/或内酰胺化合物,具有下式的三嵌段聚醚二胺化合物和二羧酸化合物聚合,可以获得显示低吸水性,高应力松弛性和高弹性恢复伸长率的聚醚聚酰胺弹性体 :[x为1〜20的值,y为4〜50的数,z为1〜20的值]。

    Thermoplastic resin integrated structure
    7.
    发明申请
    Thermoplastic resin integrated structure 有权
    热塑性树脂一体化结构

    公开(公告)号:US20010034407A1

    公开(公告)日:2001-10-25

    申请号:US09773627

    申请日:2001-02-02

    Abstract: A thermoplastic resin integrated structure, which comprises a structural member (A) molded from a resin composition (a) comprising 5-80 wt. % of polyacetal resin (a-1) and 20-95 wt. % of at least one resin (a-2) selected from the group consisting of polyolefin resin, olefinic elastomer and hydrogenated butadienic elastomer, and a structural member (B) molded from thermoplastic resin (b), the integrated structure having at least one structure of the structural member (A) and the structural member (B) as integrated together side by side has a good bonding strength between the structural member (A) molded from polyacetal-based resin and the structural member (B) molded from other thermoplastic resin, typically polyethylene.

    Abstract translation: 一种热塑性树脂一体结构,其包括由包含5-80wt。%的树脂组合物(a)成型的结构构件(A) %的聚缩醛树脂(a-1)和20-95wt。 至少一种选自聚烯烃树脂,烯烃弹性体和氢化丁二烯类弹性体的树脂(a-2)的%和由热塑性树脂(b)成型的结构构件(B),所述一体结构具有至少一种结构 结构构件(A)和结构构件(B)一并一体地在由聚缩醛类树脂成形的结构构件(A)和由其它热塑性树脂成形的结构构件(B)之间具有良好的接合强度 ,通常为聚乙烯。

    Composite tubular article consisting of a . . . petrol pipe and process
for the preparation of such an article
    9.
    发明授权
    Composite tubular article consisting of a . . . petrol pipe and process for the preparation of such an article 失效
    复合管状物品由a。 。 。 汽油管和制备这种物品的过程

    公开(公告)号:US5662975A

    公开(公告)日:1997-09-02

    申请号:US632044

    申请日:1996-04-15

    Abstract: The invention relates to a composite tubular article consisting of a vulcanized elastomer containing carboxylic acid or dicarboxylic acid anhydride functional groups, which is used in combination with a thermoplastic elastomer containing polyamide blocks. The invention also relates to a process for the preparation of such articles, characterized in that a tube consisting of an outer layer of thermoplastic elastomer containing polyamide blocks and optionally an inner layer consisting of a thermoplastic with good liquid-barrier property is sheathed by extrusion at an appropriate temperature of an elastomeric composition comprising a synthetic or natural elastomer containing carboxylic acid or dicarboxylic acid anhydride functional groups, a crosslinking system and optionally various adjuvants and fillers, in that the composite tubular article obtained is vulcanized, preferably at a temperature of between -5.degree. C. and +30.degree. C. in relation to the Vicat point of the said thermoplastic elastomer containing polyamide blocks. This process produces composite tubular articles exhibiting excellent properties, particularly of flexibility and of peel strength of the outer layer.The invention also relates to petrol pipes consisting of such articles in which the inner face of the thermoplastic tube is coated with a polymer for protection against liquids and preferably against fuels.

    Abstract translation: 本发明涉及由含有羧酸或二羧酸酐官能团的硫化弹性体组成的复合管状制品,其与含有聚酰胺嵌段的热塑性弹性体组合使用。 本发明还涉及一种用于制备这种制品的方法,其特征在于,由包含聚酰胺嵌段的外层热塑性弹性体和任选的由具有良好的液体阻隔性的热塑性塑料制成的内层组成的管子通过在 包含含有羧酸或二羧酸酐官能团的合成或天然弹性体的弹性体组合物的适当温度,交联体系和任选的各种佐剂和填料,其中所得的复合管状制品优选硫化, 相对于所述含有聚酰胺嵌段的热塑性弹性体的维卡点为5℃和+ 30℃。 该方法产生具有优异性能,特别是柔软性和外层剥离强度的复合管状制品。 本发明还涉及由这样的制品组成的汽油管,其中热塑性管的内表面涂覆有用于防止液体和优选地抵抗燃料的聚合物。

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