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    • 1. 发明申请
    • PROCESS FOR PREPARING A STABILIZED POLYESTER
    • 制备稳定聚酯的方法
    • WO2002079310A2
    • 2002-10-10
    • PCT/EP2002/003006
    • 2002-03-19
    • CIBA SPECIALTY CHEMICALS HOLDING INC.SIMON, DirkLAZZARI, DarioANDREWS, Stephen, MArkHERBST, Heinz
    • SIMON, DirkLAZZARI, DarioANDREWS, Stephen, MArkHERBST, Heinz
    • C08K5/00
    • C08K5/0008C08G63/20C08L67/02Y10T428/1334Y10T428/1352Y10T428/139C08L33/00
    • 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 or a cationic acrylamide copolymer; or (e) a hydroxyamine 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.
    • 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。
    • 6. 发明申请
    • NATURAL PRODUCTS COMPOSITES
    • 天然产品复合材料
    • WO2004094120A1
    • 2004-11-04
    • PCT/EP2004/050498
    • 2004-04-13
    • CIBA SPECIALTY CHEMICALS HOLDING INC.STADLER, Urs, LeoCAPOCCI, Gerald, AnthonyLI, Sheng-ShingREYES, MelindaHERBST, Heinz
    • STADLER, Urs, LeoCAPOCCI, Gerald, AnthonyLI, Sheng-ShingREYES, MelindaHERBST, Heinz
    • B27K3/52
    • B27N3/002
    • Disclosed are natural products composites protected against the deleterious effects of microorganisms comprising at least one natural product, at least one thermoplastic resin, and an antifungal agent. The composites are further advantageously protected against weathering and color formation by the incorporation therein of at least one light stabilizer and at least one compound selected from the group consisting of the oxides, hydroxides or silicates of Ca, Mg, Al and Zn. The light stabilizers are selected from the group consisting of the ultraviolet light absorbers and the sterically hindered amines. The metal oxide is for example CaO. The natural products are for example wood flour, flax, hemp, jute, kenaf, or rice husk. The thermoplastic resin is for example polyethylene or polypropylene. The antifungal agent and potential coadditives are incorporated via melt processing such as extrusion, co-kneading, pultrusion and injection molding. The antifungal agent is for example thiabendazole.
    • 公开了保护免受包含至少一种天然产物,至少一种热塑性树脂和抗真菌剂的微生物的有害影响的天然产物复合材料。 通过加入至少一种光稳定剂和至少一种选自Ca,Mg,Al和Zn的氧化物,氢氧化物或硅酸盐的化合物,进一步有利地防止了复合材料的耐风化和着色。 光稳定剂选自紫外光吸收剂和空间位阻胺。 金属氧化物例如为CaO。 天然产物例如是木粉,亚麻,大麻,黄麻,洋麻,或稻壳。 热塑性树脂例如是聚乙烯或聚丙烯。 抗真菌剂和潜在的共添加剂通过熔融加工如挤出,共捏合,拉挤成型和注塑成型。 抗真菌剂是例如噻苯达唑。