LOW FUEL-PERMEABLE THERMOPLASTIC VESSELS BASED ON POLYOXYMETHYLENE
    3.
    发明申请
    LOW FUEL-PERMEABLE THERMOPLASTIC VESSELS BASED ON POLYOXYMETHYLENE 审中-公开
    基于聚氧乙烯的低燃料可渗透热塑性容器

    公开(公告)号:US20090220719A1

    公开(公告)日:2009-09-03

    申请号:US12066572

    申请日:2006-09-14

    摘要: The present invention relates to thermoplastic hollow vessels, tanks, drums and other industrially applicable housings. The invention is adaptable as plastic fuel tanks with low fuel permeability, e.g., less than 5 g.·mm/m2 day as a mono-layer structure. These vessels exhibit good sub 0 0C impact properties and are formed by relatively inexpensive blow molding or rotomolding processes. Disclosed are mono-layered hollow vessels comprising an uncompatibilized, fused blend composition of polyoxymethylene, thermoplastic polyurethane and a copolyester. In one embodiment mono-layered hollow vessels comprise uncompatibilized, fused polyoxymethylene, thermoplastic polyurethane and copolyester in the respective wt. amounts of 100, 5-15 and 5-15. According to a more preferred aspect the wt. ratio of thermoplastic polyurethane to copolyester is from 1:3 to 3:1.

    摘要翻译: 本发明涉及热塑性中空容器,罐,桶以及其他工业上适用的壳体。 本发明作为单层结构适用于具有低燃料渗透性的塑料燃料箱,例如小于5g·mm / m 2的天。 这些容器具有良好的低于0℃的冲击性能,并且通过相对便宜的吹塑或滚塑工艺形成。 公开了包含聚氧化亚甲基,热塑性聚氨酯和共聚酯的不相容的熔融共混组合物的单层中空容器。 在一个实施方案中,单层中空容器在相应的重量比中包含未相容化的,熔融的聚甲醛,热塑性聚氨酯和共聚酯。 数量为100,5-15和5-15。 根据更优选的方面, 热塑性聚氨酯与共聚酯的比例为1:3至3:1。