Polyester compositions of low residual aldehyde content
    1.
    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:US07138457B2

    公开(公告)日:2006-11-21

    申请号:US10485378

    申请日:2002-08-06

    IPC分类号: C08L67/03

    摘要: A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a suitable stabilizer selected from the group consisting of polyhydric alcohol-containing polymers and copolymers derived from 2-propenoic acid ester monomers, 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: 当聚合(对苯二甲酸乙二醇酯)PET)和选自多元醇聚合物的合适的稳定剂和由2-丙烯酸酯单体衍生的共聚物的混合物当挤出复合时显示较低的残余乙醛含量 类似处理时,单独使用PET。 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。

    Oxopiperazinyl derivatives and light stabilized compositions
    8.
    发明授权
    Oxopiperazinyl derivatives and light stabilized compositions 失效
    氧哌嗪衍生物和光稳定组合物

    公开(公告)号:US06642383B2

    公开(公告)日:2003-11-04

    申请号:US09855905

    申请日:2001-05-15

    IPC分类号: C07D24106

    摘要: Compounds of the formula (I) wherein p is zero or 1; q and r, independently of each other, are an integer from 1 to 6; and s is a number ranging from 1 to 8; X is —O— or, when p is 1, X is also a group Rw, Rx, Ry and Rz are, independently of each other, C1-C18alkyl, C5-C12cycloalkyl or C1-C5hydroxyalkyl, especially methyl; R1 is hydrogen; C1-C18alkyl; oxyl; OH; CH2CN; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C7-C12phenylalkyl; C7-C15phenylalkyl, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; C7-C15phenylalkoxy; C7-C15phenylalkoxy, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; or R1 is C1-C8alkanoyl; C3-C5alkenoyl; C1-C18alkanoyloxy; glycidyl; or a group —CH2CH(OH)—G, in which G is hydrogen, methyl or phenyl; R2 is hydrogen, C1-C8alkyl, C5-C12cycloalkyl or C1-C4hydroxyalkyl; R3, R4, R5 independently of each other are hydrogen, C1-C8alkyl or C5-C12cycloalkyl; and W and other residues are as described in claim 1, are effective stabilizers for organic materials, for example thermoplastic organic polymers, coating compositions or photographic materials.

    摘要翻译: 式(I)的化合物,其中p为0或1; q和r彼此独立地是1至6的整数; 且为1至8的数; X为-O-或当p为1时,X为基团R w,R x,R y和R z彼此独立地为C 1 -C 18烷基,C 5 -C 12环烷基或C 1 -C 18烷基, C5羟烷基,特别是甲基; R1是氢; C1-C18烷基; 氧基 哦; CH2CN; C1-C18烷氧基; C5-C12环烷氧基; C3-C8链烯基; C3-C8炔基; C7-C12苯基烷基; C7-C15苯基烷基,其在苯环上被1,2或3个选自C 1 -C 4烷基和C 1 -C 4烷氧基的基团取代; C7-C15苯基烷氧基; C7-C15苯基烷氧基,其在苯环上被1,2或3个选自C 1 -C 4烷基和C 1 -C 4烷氧基的基团取代; 或R 1为C 1 -C 8烷酰基; C3-C5链烯酰基; C1-C18烷酰氧基; 缩水甘油基 或基团-CH 2 CH(OH)-G,其中G是氢,甲基或苯基; R 2是氢,C 1 -C 8烷基,C 5 -C 12环烷基或C 1 -C 4羟烷基; R 3,R 4,R 5彼此独立地是氢,C 1 -C 1-8烷基或C 5 -C 12环烷基; 和W和其它残余物如权利要求1所述,是有机材料的有效稳定剂,例如热塑性有机聚合物,涂料组合物或照相材料。

    Process for preparing a stabilized polyester
    9.
    发明授权
    Process for preparing a stabilized polyester 失效
    制备稳定聚酯的方法

    公开(公告)号:US07514526B2

    公开(公告)日:2009-04-07

    申请号:US11348664

    申请日:2006-02-07

    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.

    摘要翻译: 本发明公开了一种制备稳定的聚酯的方法,所述聚酯的生成量低,其包括在酯化过程中使一种或多种二酸与一种或多种二醇反应,和/或一种或多种二酯与一种或多种二醇 在有效量的选自以下的稳定剂的酯交换过程中:(a)多元醇,例如聚(乙烯 - 共 - 乙烯醇),聚(苯乙烯 - 共 - 烯丙醇), 麦芽糖醇,异麦芽酮糖醇,山梨糖醇,木糖醇,蔗糖,粘酸二丁酯,粘酸二(苯基-1-乙基)酯,季戊四醇或二季戊四醇; (b)式II化合物,其为例如二异辛基次膦酸; (c)空间位阻胺,例如Tinuvin 123或Tinuvin 622; (d)聚丙烯酰胺,阴离子丙烯酸类聚合物或阳离子丙烯酰胺共聚物; 或(e)羟胺和/或硝酮。 当类似处理时,当挤出复合时,这种聚酯,例如PET显示出比单独的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,药物,饮料,特别是水。

    Polyester compositions of low residual aldehyde content
    10.
    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:US06916881B2

    公开(公告)日:2005-07-12

    申请号:US10341066

    申请日:2003-01-13

    IPC分类号: C08L67/02

    CPC分类号: C08L67/02 C08L33/00

    摘要: A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is polyacrylamide, polymethacrylamide or copolymer of acrylamide or methacrylamide 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和作为聚丙烯酰胺的第二聚合物,聚甲基丙烯酰胺或丙烯酰胺或甲基丙烯酰胺的共聚物的混合物在类似处理时显示出比单独的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。