HIGH FREQUENCY WELDABLE POLYOLEFIN COMPOSITIONS INCLUDING POLAR POLYMERS
    3.
    发明申请
    HIGH FREQUENCY WELDABLE POLYOLEFIN COMPOSITIONS INCLUDING POLAR POLYMERS 审中-公开
    高频焊接聚烯烃组合物,包括极性聚合物

    公开(公告)号:US20140364572A1

    公开(公告)日:2014-12-11

    申请号:US14367660

    申请日:2012-12-21

    IPC分类号: C08L23/14 B29C65/14 C08L23/20

    摘要: A polyolefin-based composition showing improved weldability using high frequency (HF) includes (1) a base polymer selected from (a) a homogeneously branched, linear or substantially linear ethylene/α-olefin copolymer; (b) a homogeneously branched propylene/α-olefin copolymer; or (c) a combination thereof; and (2) at least one secondary component selected from (a) an ethylene vinyl acetate copolymer having from 5 to 40 wt % vinyl acetate; (b) an ethylene-ethyl acrylate having from 5 to 25 wt % ethyl acrylate; and (c) a combination thereof. The combination of the specified polyolefin with the specified secondary component, which is a polar polymer, makes these formulations HF weldable, with a cohesive welding failure, a weld strength for 10 mil thick film greater than 7 lb/in (1.23 N/mm) at a weld time of less than or equal to 6 seconds. The formulations may also exhibit good calendering processability and mechanical properties.

    摘要翻译: 使用高频(HF)显示出改进的焊接性的聚烯烃基组合物包括(1)选自(a)均匀支化的,直链的或基本上线性的乙烯/α-烯烃共聚物的基础聚合物; (b)均匀支化的丙烯/α-烯烃共聚物; 或(c)其组合; 和(2)至少一种选自(a)乙烯 - 乙酸乙烯酯共聚物的次要组分,其具有5至40重量%的乙酸乙烯酯; (b)具有5至25重量%丙烯酸乙酯的乙烯 - 丙烯酸乙酯; 和(c)其组合。 指定的聚烯烃与作为极性聚合物的规定的次要组分的组合使得这些配方HF可焊接,具有内聚焊接故障,10密耳厚膜的焊接强度大于7lb / in(1.23N / mm) 在焊接时间小于或等于6秒。 制剂还可以表现出良好的压延加工性能和机械性能。

    CROSSLINKED FIBERS OR OTHER ARTICLES MADE FROM POLYOLEFIN ELASTOMERS
    6.
    发明申请
    CROSSLINKED FIBERS OR OTHER ARTICLES MADE FROM POLYOLEFIN ELASTOMERS 审中-公开
    交联纤维或其他文章从聚烯烃弹性体制造

    公开(公告)号:US20110187018A1

    公开(公告)日:2011-08-04

    申请号:US12946579

    申请日:2010-11-15

    IPC分类号: D01D5/00 C08L51/06 C08L53/00

    CPC分类号: C08L51/06 C08L53/00 D01D5/00

    摘要: The invention relates to an improved process for controlling the amount of crosslinking in polyolefin based articles such as fibers or films. The invention relates to mixing silane grafted material together with ungrafted material prior to crosslinking. The article can then be formed and cured, optionally with a curing catalyst which can preferably be applied to the surface of a shaped article. The amount of crosslinking will be controlled in part by the level of silane grafting on the grafted silane material as well as the amount of the grafted material in the blend.

    摘要翻译: 本发明涉及用于控制聚烯烃基制品如纤维或薄膜中的交联量的改进方法。 本发明涉及在交联之前将硅烷接枝材料与未接枝的材料混合。 然后可以任选地使用固化催化剂来形成和固化该制品,该固化催化剂可以优选地施加到成型制品的表面上。 交联量将部分地由接枝硅烷材料上的硅烷接枝水平以及共混物中接枝材料的量来控制。