Conveyor lubricant, passivation of a thermoplastic container to stress cracking, and thermoplastics stress crack inhibitor
    7.
    发明授权
    Conveyor lubricant, passivation of a thermoplastic container to stress cracking, and thermoplastics stress crack inhibitor 有权
    输送润滑剂,热塑性容器钝化以应力开裂,以及热塑性应力裂纹抑制剂

    公开(公告)号:US06806240B1

    公开(公告)日:2004-10-19

    申请号:US10049452

    申请日:2002-06-14

    IPC分类号: C10M17300

    摘要: Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the stress cracking promoting materials from interacting with the polymeric structure of the stressed container to prevent or inhibit stress cracking in such materials. The methods and compositions of the invention are particularly useful in preventing stress cracking in polyethylene terephthalate beverage containers during bottling operations during which the bottle in contacted with aqueous and non-aqueous materials such as cleaners and lubricants that can interact with the polyester to cause stress cracking particularly in the container base. A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a liquid lubricant. The process provides many advantages compared to the use of a conventional dilute aqueous lubricant.

    摘要翻译: 通过形成包含热塑性塑料和液体烃油组合物的成型制品,可以在存在应力开裂促进化合物的情况下保护热成型的热塑性制品免受应力开裂。 我们已经发现液体烃油组合物防止促使应力开裂的材料与应力容器的聚合物结构相互作用,以防止或抑制这种材料中的应力开裂。 本发明的方法和组合物特别可用于在装瓶操作期间防止聚对苯二甲酸乙二醇酯饮料容器中的应力开裂,在该操作期间,瓶子与水性和非水性材料(例如清洁剂和润滑剂)接触可与聚酯相互作用以引起应力开裂 特别是在集装箱基地。 通过向容器或输送机施加稀薄的连续的,基本上不滴落的液体润滑剂层来润滑诸如饮料容器的容器或容器的输送机的方法。 与使用常规稀释水性润滑剂相比,该方法提供了许多优点。