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    Compartmentalized resin pellets for oxygen scavenging
    1.
    发明授权
    Compartmentalized resin pellets for oxygen scavenging 有权
    用于氧气清除的隔室树脂颗粒

    公开(公告)号：US07541091B2

    公开(公告)日：2009-06-02

    申请号：US11416977

    申请日：2006-05-03

    申请人： Edwin Andrew Sisson ,  Gianluca Ferrari

    发明人： Edwin Andrew Sisson ,  Gianluca Ferrari

    IPC分类号： B23B5/16

    CPC分类号： C08K5/098 ,  C08L9/00 ,  Y10T428/2991 ,  Y10T428/2998

    摘要： Disclosed is a process and article to simultaneously thermally treat at least two thermoplastics when one of the thermoplastics is an oxygen inert material and the other is an oxygen sensitive material, and the article also contains a promoter that converts the oxygen sensitive material to an oxygen reactive material when brought in contact with the oxygen sensitive material. The process utilizes the compartmentalized pellet, also known as a zoned pellet, construction wherein the major amount of each component is located within individual compartments or zones of the pellet such that the reactions with compounds in the atmosphere such as oxygen are less than the reaction if the thermoplastics were homogeneously dispersed in the pellet. This is of particular use to oxygen scavenging systems.

    摘要翻译： 公开了当热塑性塑料之一是氧惰性材料并且另一种是氧敏感材料时同时热处理至少两种热塑性塑料的方法和制品，并且该制品还含有将氧敏感材料转化为氧反应性的促进剂 当与氧敏感材料接触时，材料。 该方法使用分隔的颗粒，也称为分区颗粒，其中每个组分的主要量位于颗粒的单独隔室或区域内，使得与气氛中的化合物（例如氧）的反应小于如下反应： 热塑性塑料均匀地分散在颗粒中。 这对氧气清除系统特别有用。

    Process for crystallizing polyethylene naphthalate copolymers in the absence of devolatilization
    10.
    发明授权
    Process for crystallizing polyethylene naphthalate copolymers in the absence of devolatilization 有权
    在没有脱挥发分的情况下使聚萘二甲酸乙二醇酯共聚物结晶的方法

    公开(公告)号：US6124423A

    公开(公告)日：2000-09-26

    申请号：US339432

    申请日：1999-06-24

    申请人： Ben Duh ,  Edwin Andrew Sisson ,  Douglas David Callander

    发明人： Ben Duh ,  Edwin Andrew Sisson ,  Douglas David Callander

    IPC分类号： C08G63/189 ,  C08G63/80 ,  C08G63/88 ,  C08G63/02

    CPC分类号： C08G63/88 ,  C08G63/189 ,  C08G63/80

    摘要： A process for crystallizing a polyethylene naphthalate copolymer by:a) copolymerizing at least 60 mole % of 2,6-naphthalene dicarboxylic acid, based on the total moles of carboxylic acids, with polyols such as at least 80 mole % of ethylene glycol and from 2 mole % to 20 mole % of a polyol having three or more carbon atoms, each based on the total moles of polyols, to form PEN copolymer solids, andb) subsequently crystallizing the PEN copolymer solids by heating the solids to at least their sticking temperature at an average rate of at least 10.degree. C./min, to form agglomerate-free crystallized solids.The process may be performed under agitation. The pellets heated up in a during the crystallization step do not agglomerate or suddenly expand as the temperature rises to and through the sticking temperature of the PEN copolymers. The process allows one to rapidly heat up PEN during crystallization, and do so without conducting a prior drying step or a devolitilization step.

    摘要翻译： 聚萘二甲酸乙二醇酯共聚物的结晶方法为：a）将至少60摩尔％的2,6-萘二羧酸与羧酸的总摩尔数与多元醇（例如至少80摩尔％的乙二醇）和 2摩尔％至20摩尔％的具有三个或更多个碳原子的多元醇，各自基于多元醇的总摩尔数，以形成PEN共聚物固体，和b）随后通过将固体加热至至少其粘附而结晶PEN共聚物固体 温度以至少10℃/分钟的平均速率，以形成无凝聚物的结晶固体。 该方法可以在搅拌下进行。 在结晶步骤中加热的颗粒在温度升高到并经过PEN共聚物的粘附温度时不会聚集或突然膨胀。 该方法允许在结晶期间快速加热PEN，并且不进行先前的干燥步骤或脱挥发步骤。