Polyolefin composition for pipes and fittings with increased resistance to chlorine dioxide

    公开(公告)号:US09873776B2

    公开(公告)日:2018-01-23

    申请号:US14232950

    申请日:2012-07-24

    摘要: The present invention relates to a polyolefin composition with increased resistance to degradation caused by ClO2-containing water and to a pipe or a fitting made of such a polyolefin composition. The polyolefin composition comprises a polyolefin base resin (A), an antioxidant (B) having a chroman-6-ol structure, and an antioxidant (C) having a phenolic structure and the molecule comprises at least one ester group. The present invention further relates to the use of the polyolefin composition for the production of a pipe or a fitting and to the use of the polyolefin composition for increasing the lifetime of a pipe or a fitting providing the polyolefin composition with resistance against degradation caused by contact with ClO2-containing water.

    POLYOLEFIN COMPOSITION FOR PIPES AND FITTINGS WITH INCREASED RESISTANCE TO CHLORINE DIOXIDE
    8.
    发明申请
    POLYOLEFIN COMPOSITION FOR PIPES AND FITTINGS WITH INCREASED RESISTANCE TO CHLORINE DIOXIDE 有权
    用于管道和配件的聚烯烃组合物对二氧化氯的耐受性提高

    公开(公告)号:US20140163145A1

    公开(公告)日:2014-06-12

    申请号:US14232950

    申请日:2012-07-24

    IPC分类号: C08K5/1545 C08K5/134

    摘要: The present invention relates to a polyolefin composition with increased resistance to degradation caused by ClO2-containing water and to a pipe or a fitting made of such a polyolefin composition. The polyolefin composition comprises a polyolefin base resin (A), an antioxidant (B) having a chroman-6-ol structure, and an antioxidant (C) having a phenolic structure and the molecule comprises at least one ester group. The present invention further relates to the use of the polyolefin composition for the production of a pipe or a fitting and to the use of the polyolefin composition for increasing the lifetime of a pipe or a fitting providing the polyolefin composition with resistance against degradation caused by contact with ClO2-containing water.

    摘要翻译: 本发明涉及由含ClO 2的水和由这种聚烯烃组合物制成的配管或配件的抗降解性的聚烯烃组合物。 聚烯烃组合物包含聚烯烃基础树脂(A),具有苯并二氢吡喃-6-醇结构的抗氧化剂(B)和具有酚类结构的抗氧化剂(C),该分子包含至少一个酯基。 本发明还涉及聚烯烃组合物在制造管材或配件中的用途,以及使用聚烯烃组合物来增加管道或配件的使用寿命,使聚烯烃组合物具有抵抗由接触引起的降解性 含有ClO2的水。

    Fibre reinforced propylene foam
    9.
    发明授权
    Fibre reinforced propylene foam 有权
    纤维增强丙烯泡沫

    公开(公告)号:US08729144B2

    公开(公告)日:2014-05-20

    申请号:US12097219

    申请日:2006-11-15

    IPC分类号: C08F110/06

    摘要: The present invention relates to a foamed polypropylene composition comprising a propylene homo- and/or copolymer and glass fibres, wherein (i) the composition has a density of 50 to 950 kg/m3, (ii) the tensile modulus tm(extrusion direction) measured according to ISO 527 in extrusion direction and the k-value measured according to ASTM C-518 satisfy the relation: tm(extrusion direction) [MPa]/k [W/mK]≧9000 MPa·mK/W, to the use of said composition for the production of an insulating layer and to an article comprising said composition.

    摘要翻译: 本发明涉及包含丙烯均聚物和/或共聚物和玻璃纤维的发泡聚丙烯组合物,其中(i)组合物的密度为50至950kg / m 3,(ii)拉伸模量t m(挤出方向) 根据ISO 527在挤出方向测量,并且根据ASTM C-518测量的k值满足关系式:tm(挤出方向)[MPa] / k [W / mK]≥9000MPa·mK / W,使用 的用于制备绝缘层的组合物和包含所述组合物的制品。