Inherently antistatic thermoplastic polyamide-polyether films
    34.
    发明授权
    Inherently antistatic thermoplastic polyamide-polyether films 失效
    固有抗静电热塑性聚酰胺 - 聚醚膜

    公开(公告)号:US5369179A

    公开(公告)日:1994-11-29

    申请号:US695175

    申请日:1991-05-03

    Inventor: Marvin R. Havens

    Abstract: Disclosed is a thermoplastic flexible film suitable for wrapping static sensitive devices such as electronic circuit boards. The film is made of an inherently hydrophilic polyether block amide copolymer in blend with a compatible polymer. Compatible polymers typically are amide polymers or are acid copolymers, such as the nylons or ionomers. The film does not have a degree of hydrophilicity unsuitable for packaging static sensitive devices. Yet the film is antistatic without requiring the addition of an antistatic agent.

    Abstract translation: 公开了一种适用于缠绕诸如电子电路板的静电敏感装置的热塑性柔性膜。 该膜由与亲水聚合物共混的固有的亲水性聚醚嵌段酰胺共聚物制成。 相容的聚合物通常是酰胺聚合物,或者是酸共聚物,例如尼龙或离聚物。 该膜不具有一定程度的亲水性,不适用于包装静电敏感装置。 然而,该膜是抗静电的,而不需要添加抗静电剂。

    Antistatic fiber
    37.
    发明授权
    Antistatic fiber 失效
    抗静电纤维

    公开(公告)号:US3873353A

    公开(公告)日:1975-03-25

    申请号:US33777773

    申请日:1973-03-05

    Applicant: ALLIED CHEM

    Abstract: An improved antistatic fiber of polyamide, polyester, polyurea, polyurethane or polysulfonamide is prepared by uniformly dispersing an antistatic additive consisting of a chain-extended propylene oxide-ethylene oxide copolymer based on a diamine, in the fiber-forming polymer, forming the fiber by conventional methods, then applying to the fiber a coating of the antistatic additive. The improved antistatic fiber is especially useful for carpet manufacture. In carpet use, the antistatic additive included in the fiber improves with age, whereas the additive externally added is gradually abraded off in use; the net result is a relatively stable antistatic capability.

    Abstract translation: 通过将由基于二胺的链延长的环氧丙烷 - 环氧乙烷共聚物组成的抗静电添加剂均匀地分散在纤维形成聚合物中,通过将纤维形成纤维来形成纤维来制备聚酰胺,聚酯,聚脲,聚氨酯或聚磺酰胺的改进的抗静电纤维 常规方法,然后将抗静电添加剂的涂层施加到纤维上。 改进的抗静电纤维特别适用于地毯制造。 在地毯使用中,包含在纤维中的抗静电添加剂随着年龄的增长而增加,而外加的添加剂在使用中逐渐被磨损; 最终的结果是抗静电能力相对稳定。

Patent Agency Ranking