Recycled method for a wasted polymer which is mixed polyester polyamide and reclaimed materials thereof
    9.
    发明授权
    Recycled method for a wasted polymer which is mixed polyester polyamide and reclaimed materials thereof 失效
    作为混合聚酯聚酰胺及其回收材料的废弃聚合物的回收方法

    公开(公告)号:US07511081B2

    公开(公告)日:2009-03-31

    申请号:US10599339

    申请日:2005-03-24

    IPC分类号: C08J11/04

    摘要: The present invention relates to a recycling method of a mixed waste of polyester and polyamide (hereinafter, referred to as “mixed waste”) in which polyesters including polyethylene terephthalate and polyamides are inseparable from one another. In accordance with the recycling method of the present invention, it is possible to prepare a solid block polymer having an acid value of 1 to 150 mgKOH/g, a weight average molecular weight of 3,000 to 50,000 and a softening point of 10 to 150° C., or a liquid polyester-amide block polymer composition having good compatibility, solubility and dispersibility. In addition, the polymer having an acid value of more than 20 mgKOH/g is reacted with a basic compound to form a neutralized salt which is then used to prepare a water-soluble polyester-amide block polymer composition. The prepared water-soluble polyester-amide block polymer composition can be utilized as industrially useful material such as synthetic resin fine particles, microcapsules, adsorbents, polymerization toner binders for electron photography, fiber processing agents, sizing agents for use in paper-making and paper strength agents, wastewater treatment agents, dispersants, cement admixtures, inkjet ink binders, epoxy resin curing agents and modifiers, water-dispersible epoxy resin curing agents and modifiers. The solid or liquid polyester-amide block polymer composition having an acid value of less than 10 mgKOH/g can be employed as industrially useful material such as printer ink, coating materials, powder paints, adhesives, hot melt adhesives, binders for toner manufactured by grinding methods, waterproofing agents, unsaturated polyester-amide resins, and polyurethane resins.

    摘要翻译: 本发明涉及聚酯和聚酰胺(以下称为“混合废料”)的混合废弃物的再循环方法,其中包括聚对苯二甲酸乙二醇酯和聚酰胺在内的聚酯彼此不可分离。 根据本发明的回收方法,可以制备酸值为1〜150mgKOH / g,重均分子量为3,000〜50,000,软化点为10〜150℃的固体嵌段聚合物 C.或具有良好相容性,溶解性和分散性的液体聚酯 - 酰胺嵌段聚合物组合物。 此外,酸值大于20mgKOH / g的聚合物与碱性化合物反应形成中和盐,然后将其用于制备水溶性聚酯 - 酰胺嵌段聚合物组合物。 制备的水溶性聚酯 - 酰胺嵌段聚合物组合物可用作工业上有用的材料,例如合成树脂细颗粒,微胶囊,吸附剂,用于电子照相的聚合调色剂粘合剂,纤维加工剂,用于造纸和纸的上浆剂 强化剂,废水处理剂,分散剂,水泥混合物,喷墨油墨粘合剂,环氧树脂固化剂和改性剂,水分散性环氧树脂固化剂和改性剂。 具有酸值小于10mgKOH / g的固体或液体聚酯 - 酰胺嵌段聚合物组合物可用作工业上有用的材料,例如印刷油墨,涂料,粉末涂料,粘合剂,热熔粘合剂,由 研磨方法,防水剂,不饱和聚酯酰胺树脂和聚氨酯树脂。