Aldehyde emission reduction for dibenzylidene sorbitol clarified plastics
    2.
    发明授权
    Aldehyde emission reduction for dibenzylidene sorbitol clarified plastics 有权
    二亚苄基山梨醇澄清塑料的醛减排

    公开(公告)号:US06518339B1

    公开(公告)日:2003-02-11

    申请号:US09663901

    申请日:2000-09-18

    IPC分类号: C08K525

    摘要: An additive that is used in conjunction with certain dibenzylidene sorbitol-type (DBS) clarifiers and acid scavengers within polyolefin resins to reduce the release of aldehydes from polypropylene material is disclosed. Hydrazides have been shown to be effective at removing residual aldehyde from polyolefins, such as polypropylene. This function can be accomplished with a minimal impact on optical transparent properties imparted to the polypropylene by the clarifying agent. The net effect is an improvement in the organoleptic performance of resins containing clarifiers, and a reduction in the UV-absorbing extractables. Particularly, adipic dihydrazide, when co-compounded into polypropylene homopolymer with 4-methyl DBS, improves the organoleptic performance of the clarifier. Incorporation of dihydrazides into polypropylene pellets reduced air-released aldehyde by nearly 100%.

    摘要翻译: 公开了与聚烯烃树脂中的某些二亚苄基山梨醇型(DBS)澄清剂和酸清除剂结合使用以减少聚丙烯材料中醛的释放的添加剂。 已经证明,酰肼有效地从聚烯烃如聚丙烯中除去残余的醛。 该功能可以通过对澄清剂赋予聚丙烯的光学透明性的影响最小化来实现。 净效果是含有澄清剂的树脂的感官性能的改善,以及UV吸收可提取物的减少。 特别地,当与4-甲基DBS共混于聚丙烯均聚物时,己二酸二酰肼改善澄清器的感官性能。 将二酰肼引入聚丙烯颗粒中将空气释放的醛减少近100%。

    Symmetrical halogenated and alkylated alditol derivatives and compositions and articles containing same
    5.
    发明授权
    Symmetrical halogenated and alkylated alditol derivatives and compositions and articles containing same 失效
    对称的卤代和烷基化的糖醇衍生物和含有它们的组合物和制品

    公开(公告)号:US06547988B2

    公开(公告)日:2003-04-15

    申请号:US09815630

    申请日:2001-03-23

    IPC分类号: G09K1506

    摘要: Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain alkyl (or alkoxy) substituted halo-benzylidene sorbitol acetals and polymer compositions thereof which may be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive halogenated (that is, chlorinated, brominated, or iodinated) and alkylated benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks.

    摘要翻译: 提供可用作成核剂并且可用于改善聚合物材料的光学性能的塑料添加剂。 更具体地说,本发明涉及某些烷基(或烷氧基)取代的卤代 - 亚苄基山梨糖醇缩醛及其聚合物组合物,其仅可用作食品或化妆品容器和包装。 这些本发明的卤代(即,氯化,溴化或碘化​​)和烷基化亚苄基山梨糖醇缩醛也可用作水和有机溶剂的胶凝剂,特别是用于制备止汗凝胶棒的那些。