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9 条记录 (耗时 0.036 秒)

    Polyester compositions of low residual aldehyde content
    4.
    发明授权
    Polyester compositions of low residual aldehyde content 失效
    低残留醛含量的聚酯组合物

    公开(公告)号：US06191209B1

    公开(公告)日：2001-02-20

    申请号：US09603505

    申请日：2000-06-26

    申请人： Stephen Andrews ,  Dario Lazzari ,  Paul Odorisio ,  Dirk Simon

    发明人： Stephen Andrews ,  Dario Lazzari ,  Paul Odorisio ,  Dirk Simon

    IPC分类号： C08J320

    CPC分类号： C08L67/02 ,  C08L29/00

    摘要： A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is poly(vinyl alcohol) or an ethylene/vinyl alcohol copolymer when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.

    摘要翻译： 当进行挤出复合时，聚酯（例如聚对苯二甲酸乙二醇酯）PET和聚（乙烯醇）的第二聚合物或乙烯/乙烯醇共聚物的混合物在类似处理时表现出比单独的PET更低的残留乙醛含量。 本发明涉及用于制造瓶子或容器的任何聚酯，其又用于储存消费材料，特别是食品，饮料，特别是水。

    Process for producing polyester with metal phosphonic acid complex catalysts
    5.
    发明申请
    Process for producing polyester with metal phosphonic acid complex catalysts 审中-公开
    用金属膦酸配合物催化剂生产聚酯的方法

    公开(公告)号：US20080108779A1

    公开(公告)日：2008-05-08

    申请号：US11901478

    申请日：2007-09-17

    申请人： Stephen Andrews ,  Jianzhao Wang ,  Thomas Thompson ,  Paragkumar Thanki ,  Deepak Rane ,  Suhas Sahasrabudhe ,  Preetam Ghogale ,  Paul Odorisio ,  Si Wu

    发明人： Stephen Andrews ,  Jianzhao Wang ,  Thomas Thompson ,  Paragkumar Thanki ,  Deepak Rane ,  Suhas Sahasrabudhe ,  Preetam Ghogale ,  Paul Odorisio ,  Si Wu

    IPC分类号： C08G63/02

    CPC分类号： C08G63/84 ,  C08G63/183 ,  C08G63/189

    摘要： Disclosed is a method for the preparation of a polyester, which method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester, where a metal phosphonic acid complex compound of the formula is employed in the first step, in the second step or in both the first and second steps as a reaction catalyst; and wherein n is 0, 1, 2, 3, 4, 5 or 6; p is an integer from 1 to 30; M is a metal selected from the group consisting of Li, Na, K, Cs, Be, Ca, Mg, Sr, Ba, Al, Sb, Cd, Mn, Fe, Co, Ni, Cu and Zn; v is the valency of the metal M and is 1, 2 or 3; q is an integer from 1 to 20 where q=2p/v; and R1 is hydrogen, straight or branched chain alkyl of 1 to 36 carbon atoms, straight or branched chain alkenyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 8 carbon atoms or aryl of 6 to 10 carbon atoms; or is said alkyl, alkenyl, cycloalkyl or aryl substituted by one to four hydroxyl, halogen, straight or branched chain alkoxy of 1 to 8 carbon atoms, straight or branched chain alkyl of 1 to 8 carbon atoms or amino groups. The metal complex catalyst compound is in particular

    摘要翻译： 公开了一种制备聚酯的方法，该方法包括在第一步中，使二羧酸或C 1 -C 4 - 二羧酸二酯与二醇反应 合适的温度和压力以进行酯化或酯交换以制备预缩合物，并且在第二步中，使预缩合物在合适的温度和压力下进行缩聚以制备高分子量聚酯，其中式 在第一步，第二步或第一步和第二步都用作反应催化剂; 并且其中n为0,1,2,3,4,5或6; p是1至30的整数; M是选自Li，Na，K，Cs，Be，Ca，Mg，Sr，Ba，Al，Sb，Cd，Mn，Fe，Co，Ni，Cu和Zn中的金属; v是金属M的化合价，为1,2或3; q是1至20的整数，其中q = 2p / v; R 1是氢，1至36个碳原子的直链或支链烷基，1至36个碳原子的直链或支链烯基，5至8个碳原子的环烷基或6至10个芳基 碳原子 或被1至4个羟基，卤素，1至8个碳原子的直链或支链烷氧基，1至8个碳原子的直链或支链烷基或氨基取代的烷基，链烯基，环烷基或芳基取代。 特别是金属络合物催化剂化合物

    2-Hydroxyphenyl-s-triazine crosslinkers for polymer networks
    7.
    发明申请
    2-Hydroxyphenyl-s-triazine crosslinkers for polymer networks 有权
    用于聚合物网络的2-羟基苯基-s-三嗪交联剂

    公开(公告)号：US20050075465A1

    公开(公告)日：2005-04-07

    申请号：US10497297

    申请日：2002-11-21

    申请人： Thomas Bolle ,  Andreas Valet ,  David Leppard ,  Stephen Andrews ,  Ramanathan Ravichandran ,  Markus Grob ,  Dirk Simon

    发明人： Thomas Bolle ,  Andreas Valet ,  David Leppard ,  Stephen Andrews ,  Ramanathan Ravichandran ,  Markus Grob ,  Dirk Simon

    IPC分类号： C07D251/24 ,  C08F8/30 ,  C08F291/00 ,  C08K5/3492 ,  C08L101/00 ,  C07D201/00 ,  C08F20/00 ,  C09K3/00

    CPC分类号： C08F8/30 ,  C07D251/24 ,  C08F291/00 ,  C08K5/3492 ,  C08F222/1006

    摘要： Compounds of the general formula I′ in which R1 is H, C1-C12alkyl; C5-C12cycloalkyl; C2-C18alkyl which is interrupted by one or more O; SR4; OR5; or is a group of formula II or III R2, R21 and R3 independently of one another, are H or —Y-T as defined in claim 1, where T is a reactive group selected from OH, acryl- and methacryloxy and arylcarbonate groups, and further symbols are as defined in claim 1, are effective as crosslinking agents for polymeric networks, especially as in flexographic printing plates, coatings, and plastic containers or films. Further provided is a method of protecting the content of a clear or lightly colored plastic container or film against the deleterious effects of ultraviolet radiation, which method comprises permanently and covalently bonding one or more UV absorbing moieties of a durable s-triazine UV absorber via condensation to a suitable polymer component.

    摘要翻译： 通式I'的化合物，其中R 1是H，C 1 -C 12烷基; C5-C12环烷基; 被一个或多个O中断的C 2 -C 18烷基; SR4; OR5; 或者是式II或III中的R 2，R 21和R 3彼此独立的基团是如权利要求1所定义的H或-YT，其中T是选自OH，丙烯酰基和甲基丙烯酰氧基和芳基碳酸酯基的反应性基团， 符号如权利要求1中所定义，可用作聚合物网络的交联剂，特别是在柔性版印刷版，涂料和塑料容器或薄膜中。 进一步提供了一种保护透明或浅色塑料容器或薄膜的含量以抵抗紫外线辐射的有害影响的方法，该方法包括通过冷凝物永久地和共价键合耐久的三嗪UV吸收剂的一个或多个UV吸收部分 到合适的聚合物组分。

    Process for preparing a stabilized polyester
    8.
    发明申请
    Process for preparing a stabilized polyester 失效

    公开(公告)号：US20060155065A1

    公开(公告)日：2006-07-13

    申请号：US11348664

    申请日：2006-02-07

    申请人： Dirk Simon ,  Dario Lazzari ,  Stephen Andrews ,  Heinz Herbst

    发明人： Dirk Simon ,  Dario Lazzari ,  Stephen Andrews ,  Heinz Herbst

    IPC分类号： C08G73/16 ,  C08L67/06

    CPC分类号： C08K5/0008 ,  C08G63/20 ,  C08L67/02 ,  Y10T428/1334 ,  Y10T428/1352 ,  Y10T428/139 ,  C08L33/00

    摘要： The present invention discloses a process for the preparation of a stabilized polyester that is low in the generation of aldehydes which comprises reacting one or more diacids with one or more diols in an esterification process, and/or one or more diesters with one or more diols in a transesterification process in the presence of an effective amount of a stabilizer selected from the group consisting of (a) a polyhydric alcohol which is for example poly(ethylene-co-vinyl alcohol), poly(styrene-co-allyl alcohol), maltitol, isomalt, sorbitol, xylitol, sucrose, mucic acid dibutylester, mucic acid di(phenyl-1-ethyl)ester, pentaerythritol or dipentaerythritol; (b) a compound of the formula II which is for example di-iso-octyl-phosphinic acid; (c) a sterically hindered amine which is for example Tinuvin 123 or Tinuvin 622; (d) a polyacrylamide, an anionic acrylic polymer or a cationic acrylamide copolymer; or (e) a hydroxylamine and/or a nitrone. Such polyesters, for example PET, when extrusion compounded exhibit a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, pharmaceuticals, beverages and most especially water.

    Optical amplifier manufacture
    9.
    发明授权
    Optical amplifier manufacture 失效
    光放大器制造

    公开(公告)号：US6166851A

    公开(公告)日：2000-12-26

    申请号：US222556

    申请日：1998-12-29

    申请人： Barrie Flintham ,  Kevan Peter Jones ,  Stephen Andrews

    发明人： Barrie Flintham ,  Kevan Peter Jones ,  Stephen Andrews

    IPC分类号： H01S3/067 ,  H01S3/00

    CPC分类号： H01S3/06708 ,  H01S2301/04

    摘要： A construction of gain tilt exhibiting optical amplifier that incorporates a gain flattening filter also includes a neutral density filter the value of whose attenuation is adjustable after assembly of the components of the amplifier. This neutral density filter is constructed by the performance of a succession of localised re-fusion operations at a localised region of an optical fiber. By this means the attenuation is increased to a desired value that provides the amplifier with optimised gain flattening at some predetermined value of amplifier external gain.

    摘要翻译： 具有增益平坦化滤波器的增益倾斜展示光放大器的结构还包括中性密度滤波器，其衰减值在组装放大器的组件之后是可调节的。 这种中性密度滤光器是通过在光纤的局部区域执行一系列局部再融合操作而构成的。 通过这种方式，衰减增加到期望的值，该放大器在放大器外部增益的某个预定值处提供优化的增益平坦化。