利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

41 条记录 (耗时 0.028 秒)

    Method to reduce regenerated acetaldehyde in pet resin
    14.
    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 make single-layer pet bottles with high barrier and improved clarity
    18.
    发明申请
    Method to make single-layer pet bottles with high barrier and improved clarity 无效
    制造具有高屏障和改善清晰度的单层宠物瓶的方法

    公开(公告)号：US20060246245A1

    公开(公告)日：2006-11-02

    申请号：US10569614

    申请日：2004-08-05

    申请人： Zhenguo Liu ,  Sanjay Mehta ,  Xiaoyan Huang ,  David Schiraldi

    发明人： Zhenguo Liu ,  Sanjay Mehta ,  Xiaoyan Huang ,  David Schiraldi

    IPC分类号： B65D1/02

    CPC分类号： C08K3/24 ,  B29B2911/1402 ,  B29B2911/14026 ,  B29B2911/14033 ,  B29B2911/1404 ,  B29B2911/14106 ,  B29B2911/14133 ,  B29B2911/1416 ,  B29C49/0005 ,  B29C49/06 ,  B29K2067/00 ,  B65D1/0207 ,  C08G63/6886 ,  C08K5/098 ,  C08K5/42 ,  C08L67/02 ,  C08L77/06 ,  Y10T428/13 ,  Y10T428/1352 ,  Y10T428/139 ,  C08L2666/20

    摘要： The present invention comprises a blend of polyester and a partially aromatic polyamide with an ionic compatibilizer and a cobalt salt. This blend can be processed into a container that has both active and passive oxygen barrier and carbon dioxide barrier properties at an improved color and clarity than containers known in the art. The partially aromatic polyamide is preferably meta-xylylene adipamide. The ionic compatibilizer is preferably 5-sodiumsulfoisophthalic acid or 5-zincsulfoisophthalic acid, or their dialkyl esters such as the dimethyl ester (SIM) and glycol ester (SIPEG). The cobalt salt is selected form the class of cobalt acetate, cobalt carbonate, cobalt chloride, cobalt hydroxide, cobalt naphthenate, cobalt oleate, cobalt linoleate, cobalt octoate, cobalt stearate, cobalt nitrate, cobalt phosphate, cobalt sulfate, cobalt (ethylene glycolate), or mixtures of two or more of these. The partially aromatic polyamide is present in a range from about 1 to about 10 wt. % of said composition. The ionic compatibilizer is present in a range from about 0.1 to about 2.0 mol-% of said composition. The cobalt salt is present in a range from about 20 to about 500 ppm of said composition.

    摘要翻译： 本发明包括聚酯和部分芳族聚酰胺与离子增容剂和钴盐的共混物。 与现有技术中已知的容器相比，该混合物可以加工成具有主动和被动氧气阻隔性和二氧化碳阻隔性能的容器，其颜色和透明度得到改善。 部分芳族聚酰胺优选为间二甲苯基己二酰胺。 离子增容剂优选为5-钠磺基间苯二甲酸或5-锌磺基间苯二甲酸，或其二烷基酯如二甲酯（SIM）和乙二醇酯（SIPEG）。 钴盐选自乙酸钴，碳酸钴，氯化钴，氢氧化钴，环烷酸钴，油酸钴，亚油酸钴，辛酸钴，硬脂酸钴，硝酸钴，磷酸钴，硫酸钴，钴（乙醇酸）等。 ，或这些中的两种或更多种的混合物。 部分芳族聚酰胺的存在量为约1至约10重量％。 ％的所述组合物。 离子相容剂的存在量为所述组合物的约0.1至约2.0mol％。 钴盐以所述组合物的约20至约500ppm的范围存在。