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    • 19. 发明授权
    • Lead acid battery separator with improved electrical and mechanical properties
    • 铅酸电池隔膜具有改善的电气和机械性能
    • US07211322B2
    • 2007-05-01
    • US11341939
    • 2006-01-26
    • Richard W. Pekala
    • Richard W. Pekala
    • B32B5/22
    • H01M2/166C08K3/36H01M2/1653H01M2/1686H01M10/12Y10T428/249953Y10T428/249956Y10T428/249986Y10T428/249991Y10T428/259C08L23/02
    • An oxidation resistant, microporous polyolefin web exhibiting high-strength mechanical and low electrical resistance properties is a solid matrix that includes an ultrahigh molecular weight polyolefin component and a friable precipitated silica component. The ultrahigh molecular weight polyolefin component provides high-strength mechanical properties to the web. The friable precipitated silica component is broken down into predominately discrete silica aggregates dispersed throughout the microporous web to maintain a low electrical resistance in the presence of an electrolyte. In an alternative preferred embodiment, a polyethylene web includes an antioxidant coating that is applied to the separator web following extraction of the majority of the process oils and drying of the extraction fluid from the separator pores. The resultant “sheath” of antioxidant protects the mechanical integrity of the polyethylene separator by suppressing polyethylene degradation.
    • 表现出高强度机械和低电阻性能的抗氧化微孔聚烯烃纤维网是包含超高分子量聚烯烃组分和易碎沉淀二氧化硅组分的固体基质。 超高分子量聚烯烃组分为纤维网提供高强度机械性能。 易碎的沉淀二氧化硅组分被分解成分散在整个微孔纤维网中的主要离散的二氧化硅聚集体,以在电解质存在下保持低电阻。 在替代的优选实施方案中,聚乙烯纤维网包括抗氧化剂涂层,其在萃取大部分工艺油并从分离器孔中干燥萃取流体之后施加到隔板网。 所得的抗氧化剂“护套”通过抑制聚乙烯降解来保护聚乙烯隔板的机械完整性。
    • 20. 发明授权
    • Inkjet printable coating for microporous materials
    • 用于微孔材料的喷墨可印刷涂层
    • US6025068A
    • 2000-02-15
    • US23374
    • 1998-02-13
    • Richard W. Pekala
    • Richard W. Pekala
    • B41M5/52C08L71/02B32B3/26B41M5/00
    • C08L71/02B41M5/5254B41M5/5281Y10T428/249978Y10T428/249985Y10T428/249986Y10T428/249991Y10T428/259
    • A microporous material substrate is coated with a coating composition comprising a volatile aqueous liquid medium and binder dissolved or dispersed in the volatile aqueous liquid medium, wherein the binder comprises film-forming organic polymer comprising: (a) water-soluble poly(ethylene oxide) having a weight average molecular weight in the range of from 100,000 to 3,000,000, and (b) water-soluble or water-dispersible crosslinkable urethane-acrylate hybrid polymer. Finely divided substantially water-insoluble filler particles may optionally be present in the coating composition. After drying and crosslinking, the peel strength between the coating and the microporous material substrate is high. The coating may be inkjet printed. The printed coating may be coated by or laminated to a substantially transparent protective layer.
    • 微孔材料基材涂覆有包含挥发性水性液体介质和溶解或分散在挥发性水性液体介质中的粘合剂的涂料组合物,其中粘合剂包括成膜有机聚合物,其包含:(a)水溶性聚(环氧乙烷) 重均分子量在100,000至3,000,000范围内,和(b)水溶性或水分散性交联的氨基甲酸酯 - 丙烯酸酯杂化聚合物。 基本上水分非常小的填料颗粒可以任选地存在于涂料组合物中。 干燥和交联后,涂层和微孔材料基片之间的剥离强度高。 涂层可以喷墨印刷。 印刷的涂层可以被涂覆或层压到基本上透明的保护层。