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41 条记录 (耗时 0.026 秒)

    Method to reduce regenerated acetaldehyde in pet resin
    1.
    发明授权
    Method to reduce regenerated acetaldehyde in pet resin 失效
    减少宠物树脂中再生乙醛的方法

    公开(公告)号：US5874517A

    公开(公告)日：1999-02-23

    申请号：US997402

    申请日：1997-12-23

    申请人： Xiaoyan Huang ,  Ligia Dominguez

    发明人： Xiaoyan Huang ,  Ligia Dominguez

    IPC分类号： C08G63/183 ,  C08G63/78 ,  C08G63/85 ,  C08G63/86 ,  C08K5/00 ,  C08G63/02

    CPC分类号： C08G63/78 ,  C08K5/005 ,  C08G63/183 ,  C08G63/85 ,  C08G63/86

    摘要： There is disclosed a process for reducing the amount of acetaldehyde generated when polyethylene terephthalate (PET) chip is subjected to high temperatures in order to render the PET chip suitable for making food containers, particularly beverage bottles. This process comprises the addition of primary and secondary antioxidants either prior to or after the PET polycondensation reaction in order to reduce the amount of regenerated acetaldehyde produced by the polymer. The polyethylene terephthalate produced by this process reduces regenerated acetaldehyde by at least 25% in comparison to control resin produced without antioxidants, while maintaining suitable color for use as clear glass replacement. There is also disclosed a process for molding a PET preform wherein the polymer prepared as described above is melted, formed into the desired preform shape, and solidified by cooling. This preform can then be reheated above its glass transition temperature and molded into the desired container shape.

    摘要翻译： 公开了当聚对苯二甲酸乙二醇酯（PET）芯片经受高温时产生的乙醛量减少以使PET芯片适合于制造食品容器，特别是饮料瓶的方法。 该方法包括在PET缩聚反应之前或之后添加一级和二级抗氧化剂，以减少聚合物产生的再生乙醛的量。 通过该方法制备的聚对苯二甲酸乙二醇酯与没有抗氧化剂的对照树脂相比，将再生乙醛减少至少25％，同时保持合适的颜色用作透明玻璃替代物。 还公开了一种用于模塑PET预成型件的方法，其中将如上所述制备的聚合物熔化，形成所需的预制件形状，并通过冷却固化。 然后可以将该预成型件重新加热到其玻璃化转变温度以上并模制成所需的容器形状。

    Method to reduce gel formation in pet resin
    2.
    发明授权
    Method to reduce gel formation in pet resin 失效
    减少宠物树脂凝胶形成的方法

    公开(公告)号：US5874515A

    公开(公告)日：1999-02-23

    申请号：US997144

    申请日：1997-12-23

    申请人： Xiaoyan Huang ,  Ligia Dominguez

    发明人： Xiaoyan Huang ,  Ligia Dominguez

    IPC分类号： C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08G63/85 ,  C08G63/00

    CPC分类号： C08G63/78 ,  C08G63/183 ,  C08G63/80 ,  C08G63/85

    摘要： There is disclosed a process for reducing the number of gels generated in polyethylene terephthalate (PET) resin. Gels are crosslinked polymers created by thermal and thermo-oxidative degradation induced during polymer production. The instant process comprises the addition of primary and secondary antioxidants prior to the PET polycondensation reaction in order to reduce the amount of thermal degradation which occurs. The polyethylene terephthalate produced by this process formed approximately 25 to 90% fewer gels while maintaining physical properties suitable for use in fiber, film, and molding applications.

    摘要翻译： 公开了减少聚对苯二甲酸乙二醇酯（PET）树脂中产生的凝胶数量的方法。 凝胶是在聚合物生产过程中引起的热和热氧化降解产生的交联聚合物。 本方法包括在PET缩聚反应之前加入一级和二级抗氧化剂，以减少发生的热降解量。 通过该方法制备的聚对苯二甲酸乙二醇酯形成约25至90％的凝胶，同时保持适用于纤维，膜和模塑应用的物理性能。

    Bio-based Polyethylene Terephthalate Polymer and Method of Making Same
    4.
    发明申请
    Bio-based Polyethylene Terephthalate Polymer and Method of Making Same 审中-公开
    生物基聚对苯二甲酸乙二醇酯聚合物及其制备方法

    公开(公告)号：US20110262669A1

    公开(公告)日：2011-10-27

    申请号：US13169562

    申请日：2011-06-27

    申请人： Robert M. Kriegel ,  Xiaoyan Huang ,  Mikell W. Schultheis

    发明人： Robert M. Kriegel ,  Xiaoyan Huang ,  Mikell W. Schultheis

    IPC分类号： B32B1/08

    CPC分类号： C08G63/183 ,  C08G63/199 ,  C08G63/78 ,  Y10T428/1352 ,  Y10T428/1379

    摘要： A bio-based polyethylene terephthalate polymer comprising from about 25 to about 75 weight percent of a terephthalate component and from about 20 to about 50 weight percent of a diol component, wherein at least about one weight percent of at least one of the terephthalate and/or the diol component is derived from at least one bio-based material. A method of producing a bio-based polyethylene terephthalate polymer comprising obtaining a diol component comprising ethylene glycol, obtaining a terephthalate component comprising terephthalic acid, wherein at least one of the diol component and/or the diol component is derived from at least one bio-based material, and reacting the diol component and the terephthalate component to form a bio-based polyethylene terephthalate polymer comprising from about 25 to about 75 weight percent of the terephthalate component and from about 20 to about 50 weight percent of the diol component.

    摘要翻译： 一种基于生物的聚对苯二甲酸乙二醇酯聚合物，其包含约25至约75重量％的对苯二甲酸酯组分和约20至约50重量％的二醇组分，其中至少约1重量％的至少一种对苯二甲酸酯和/ 或二醇组分衍生自至少一种基于生物的材料。 一种制备生物基聚对苯二甲酸乙二醇酯聚合物的方法，包括获得包含乙二醇的二醇组分，得到包含对苯二甲酸的对苯二甲酸酯组分，其中至少一种二醇组分和/或二醇组分衍生自至少一种生物基聚对苯二甲酸乙二醇酯， 并使二元醇组分和对苯二甲酸酯组分反应形成一种生物基聚对苯二甲酸乙二醇酯聚合物，其包含约25至约75重量％的对苯二甲酸酯组分和约20至约50重量％的二醇组分。

    Post-Processing of Polylactic Acid Article
    6.
    发明申请
    Post-Processing of Polylactic Acid Article 审中-公开
    聚乳酸后处理

    公开(公告)号：US20090036639A1

    公开(公告)日：2009-02-05

    申请号：US12181415

    申请日：2008-07-29

    申请人： Qiuchen Peter Zhang ,  Michael O. Okoroafor ,  Xiaoyan Huang ,  Stuart Michael Ruan Jones ,  Philip Andrew Dent ,  Claire Louise Gould

    发明人： Qiuchen Peter Zhang ,  Michael O. Okoroafor ,  Xiaoyan Huang ,  Stuart Michael Ruan Jones ,  Philip Andrew Dent ,  Claire Louise Gould

    IPC分类号： C08G63/08

    CPC分类号： A47J31/06 ,  B29C49/0005 ,  B29C51/002 ,  B29C71/02 ,  C08J7/08 ,  C08J2367/04

    摘要： Methods are provided for making a polylactic acid article. The methods may include the steps of providing an article comprising polylactic acid; supporting the article using a carrier support system; and curing the article with heat. The step of curing the article is effective to improve one or more properties of the article. Articles comprising polylactic acid also are provided having improved properties. Methods also are provided for preparing a beverage including the steps of providing a pod comprising polylactic acid, wherein the pod has been cured with heat while being supported by a carrier support system; placing a beverage material in the pod; placing a hot liquid into the pod; brewing the beverage material and hot liquid in the pod to create a beverage; and removing the beverage from the pod.

    摘要翻译： 提供制备聚乳酸制品的方法。 所述方法可以包括提供包含聚乳酸的制品的步骤; 使用运营商支持系统支持文章; 并用热量固化物品。 固化该制品的步骤对于改善制品的一种或多种性质是有效的。 提供包含聚乳酸的制品具有改进的性能。 提供了用于制备饮料的方法，包括以下步骤：提供包含聚乳酸的荚，其中所述荚已经被热固化，同时由载体支撑系统支撑; 将饮料材料放入荚中; 将热液放入荚内; 在饮料袋中冲泡饮料和热液体以形成饮料; 以及从所述荚中去除所述饮料。