Polyolefin composition with increased resistance to ClO2-containing water
    4.
    发明授权
    Polyolefin composition with increased resistance to ClO2-containing water 有权
    具有增加的对含ClO 2的水的耐受性的聚烯烃组合物

    公开(公告)号:US09376548B2

    公开(公告)日:2016-06-28

    申请号:US14144994

    申请日:2013-12-31

    IPC分类号: C08K5/375 C08K5/13 C08K5/3435

    摘要: The present invention relates to a polyolefin composition comprising a polyolefin base resin and an antioxidant, characterized in that said polyolefin composition has a lifetime of at least 200 h in a test measuring the resistance against ClO2-containing water at 90° C. and at a concentration of ClO2 of 4 ppm wherein the equipment used is according to ASTM F2263-03.The present invention further relates to a pipe comprising the polyolefin composition according to the invention, to the use of the polyolefin composition for the production of a pipe, and to the use of a particularly selected antioxidant for increasing the resistance of a polyolefin composition against degradation caused by contact with ClO2-containing water.

    摘要翻译: 本发明涉及包含聚烯烃基础树脂和抗氧化剂的聚烯烃组合物,其特征在于所述聚烯烃组合物在测试在90℃下对含ClO 2的水的抗性的试验中的寿命至少为200小时, 浓度为4ppm的ClO 2,其中使用的设备根据ASTM F2263-03。 本发明还涉及一种包含根据本发明的聚烯烃组合物的管,涉及使用聚烯烃组合物来生产管子,以及使用特别选择的抗氧化剂来增加聚烯烃组合物抗降解性的用途 由与含ClO 2的水接触引起的。

    Impact-modified polypropylene
    7.
    发明授权
    Impact-modified polypropylene 有权
    冲击改性聚丙烯

    公开(公告)号:US09040633B2

    公开(公告)日:2015-05-26

    申请号:US12734368

    申请日:2008-10-27

    摘要: The present invention relates to a polymer composition, comprising: (i) a polypropylene matrix; (ii) a first elastomeric phase dispersed within the matrix and having a glass transition temperature Tg1, measured with dynamical mechanical thermal analysis according to ISO 6721-2, wherein the first elastomeric phase comprises an ethylene copolymer having comonomer units derived from C3 to C8 olefins; (iii) a second elastomeric phase dispersed within the matrix, wherein the second elastomeric phase is crosslinked and has a glass transition temperature Tg2, measured with dynamical mechanical thermal analysis according to ISO 6721-2, within the range of −70° C. to −90° C., wherein the difference between Tg1 and Tg2 is at least 15° C. and Tg1 is higher than Tg2.

    摘要翻译: 本发明涉及聚合物组合物,其包含:(i)聚丙烯基质; (ii)分散在基体内并且具有根据ISO 6721-2的动态机械热分析测量的玻璃化转变温度Tg1的第一弹性体相,其中第一弹性体相包含具有衍生自C3至C8烯烃的共聚单体单元的乙烯共聚物 ; (iii)分散在基体内的第二弹性体相,其中第二弹性体相交联并且具有根据ISO 6721-2的动态机械热分析测量的玻璃化转变温度Tg2,其在-70℃至 -90℃,其中Tg1和Tg2之间的差为至少15℃,Tg1高于Tg2。

    Crosslinkable blend for the production of a layered article
    9.
    发明授权
    Crosslinkable blend for the production of a layered article 有权
    用于生产分层制品的可交联混合物

    公开(公告)号:US08802780B2

    公开(公告)日:2014-08-12

    申请号:US12735226

    申请日:2008-12-17

    IPC分类号: C08L23/00 C08L23/04 C08F8/00

    摘要: The present invention relates to a process for the preparation of an article, comprising the following steps: (a) providing a component (i) which comprises a blend of (a1) an unsaturated first polyolefin having a certain total amount m1 of carbon-carbon double bonds/1000 carbon atoms, (a2) a crosslinking agent, (a3) optionally an unsaturated low molecular weight compound having a certain total amount m2 carbon-carbon double bonds/1000 carbon atoms, (b) providing a component (ii) which comprises a second polymer having a certain total amount m3 of carbon-carbon double bonds/1000 carbon atoms, wherein m1, m2 and m3 satisfy a certain relationship, (c) forming a blend of component (i) and component (ii) wherein the weight ratio of the component (i) to the component (ii) is within the range of 10:90 to 99:1, (d) applying one or more layers of the blend onto a substrate.

    摘要翻译: 本发明涉及一种制品的制备方法,其包括以下步骤:(a)提供组分(i),其包含(a1)具有一定总碳量的碳 - 碳的不饱和第一聚烯烃的共混物 双键/ 1000个碳原子,(a2)交联剂,(a3)任选的具有一定总量的碳 - 碳双键/ 1000个碳原子的不饱和低分子量化合物,(b)提供组分 包括具有一定总量的碳 - 碳双键/ 1000个碳原子的第二聚合物,其中m1,m2和m3满足一定关系,(c)形成组分(i)和组分(ii)的共混物,其中 组分(i)与组分(ii)的重量比在10:90至99:1的范围内,(d)将一层或多层共混物施加到基材上。

    Polymer composition for injection moulding
    10.
    发明授权
    Polymer composition for injection moulding 有权
    用于注塑的聚合物组合物

    公开(公告)号:US08722807B2

    公开(公告)日:2014-05-13

    申请号:US11666626

    申请日:2005-11-02

    IPC分类号: C08L23/08 C08L23/04

    摘要: The application relates to a polyethylene composition having a base resin, the base resin comprising (A) a first polyethylene fraction, and (B) a second polyethylene fraction, wherein the melt flow rate MFR5/190° c. of the first fraction is higher than the melt flow rate MFR5/190° c. of the second fraction, the flow rate ratio FRR21/5 of the polyethylene composition, defined as the ratio of melt flow rate MFR21-6/190° c. to melt flow rate MFR5/190° c., is within the range of 15-28, and 10 the melt flow rate MFR5/190° c. of the polyethylene composition is within the range of 0.5-1.1 g/10 min.

    摘要翻译: 本申请涉及具有基础树脂的聚乙烯组合物,该基础树脂包含(A)第一聚乙烯部分和(B)第二聚乙烯部分,其中熔体流动速率MFR5 / 190℃。 的第一级分高于熔体流动速率MFR5 / 190℃。 的第二级分,聚乙烯组合物的流量比FRR21 / 5,定义为熔体流动速率MFR21-6 / 190℃的比率。 熔体流动速率MFR5 / 190℃,熔体流动速率MFR5 / 190℃,在15-28和10的范围内。 的聚乙烯组合物在0.5-1.1g / 10min的范围内。