Polymer compositions containing thermoplastic starch
    3.
    发明授权
    Polymer compositions containing thermoplastic starch 有权
    含有热塑性淀粉的聚合物组合物

    公开(公告)号:US06605657B1

    公开(公告)日:2003-08-12

    申请号:US09472242

    申请日:1999-12-27

    IPC分类号: C08L100

    摘要: There is provided a method of preparing a thermoplastic starch and synthetic polymer blend, said method comprising the steps of: (a) providing a starch suspension comprising starch, water and a plasticizer, preferably glycerol; (b) obtaining a thermoplastic starch from the starch suspension by causing gelatinization and plasticization of said starch suspension by exerting heat and pressure on said starch suspension in a first extrusion unit; (c) evaporating and venting off residual water from said thermoplastic starch to obtain a substantially moisture-free thermoplastic starch; (d) obtaining a melt of a synthetic polymer or polymer blend in a second extrusion unit; and (e) combining the melt obtained from step (d) with the substantially moisture-free thermoplastic starch. Also provided are compositions of matter comprising immiscible blends of thermoplastic starches, polymers, and compatibilizers.

    摘要翻译: 提供了一种制备热塑性淀粉和合成聚合物共混物的方法,所述方法包括以下步骤:(a)提供包含淀粉,水和增塑剂,优选甘油的淀粉悬浮液; (b)通过在第一挤出单元中对所述淀粉悬浮液施加热和压力使所述淀粉悬浮液凝胶化和塑化,从淀粉悬浮液中获得热塑性淀粉; (c)蒸发并排出来自所述热塑性淀粉的残留水以获得基本上无水的热塑性淀粉; (d)在第二挤出单元中获得合成聚合物或聚合物共混物的熔体; 和(e)将由步骤(d)获得的熔体与基本上不含水的热塑性淀粉组合。 还提供了包含热塑性淀粉,聚合物和增容剂的不混溶共混物的物质组合物。

    Polycarbonate-polyester compositions with enhanced flow
    4.
    发明授权
    Polycarbonate-polyester compositions with enhanced flow 有权
    具有增强流动性的聚碳酸酯 - 聚酯组合物

    公开(公告)号:US06599966B2

    公开(公告)日:2003-07-29

    申请号:US09738497

    申请日:2000-12-15

    IPC分类号: C08L100

    摘要: A molding composition comprising (a) from 10 to 90 weight percent of a polyester resin; (b) from 90 to 10 weight percent of an aromatic polycarbonate, polyarylate, polyester carbonate resin or blend thereof; and (c) a flow improving amount of lignin and/or a compound having a phosphonium sulfonate group.

    摘要翻译: 一种模塑组合物,其包含(a)10至90重量%的聚酯树脂; (b)90至10重量%的芳族聚碳酸酯,聚芳酯,聚酯碳酸酯树脂或其混合物; 和(c)木质素和/或具有磺酸鏻基团的化合物的流动改善量。

    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions
    7.
    发明授权
    Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions 失效
    用于降低含氟聚合物水分散体中氟化表面活性剂的量的方法

    公开(公告)号:US06825250B2

    公开(公告)日:2004-11-30

    申请号:US10429387

    申请日:2003-05-05

    IPC分类号: C08L100

    CPC分类号: C08F6/16 C08F6/20 C08L27/12

    摘要: The present invention provides a process of reducing the amount of fluorinated emulsifier in an aqueous fluoropolymer dispersion by contacting the aqueous fluoropolymer dispersion with an anion exchange resin in a non-fixed resin bed, the process comprising: (a) mixing the aqueous fluoropolymer dispersion with an effective amount of a surfactant so as to stabilize the fluoropolymer dispersion while being contacted with the anion exchange resin; (b) contacting the aqueous fluoropolyrner dispersion with an anion exchange resin by agitating the aqueous fluoropolymer dispersion with an effective amount of anion exchange resin for a time of less than 4 hours to reduce the amount of fluorinated emulsifier in the aqueous fluoropolymer dispersion to a desired level; and (c) separating the anion exchange resin from the aqueous fluoropolymer dispersion.

    摘要翻译: 本发明提供一种通过使含氟聚合物含水分散体与阴离子交换树脂在非固定树脂床中接触来降低含氟聚合物水分散体含量的方法,该方法包括:(a)将含氟聚合物水分散体与 有效量的表面活性剂,以便在与阴离子交换树脂接触的同时稳定含氟聚合物分散体;(b)通过用有效量的阴离子交换树脂搅拌含氟聚合物水分散体使其与阴离子交换树脂接触, 少于4小时的时间将含氟聚合物水分散体中的氟化乳化剂的量减少到所需水平; 和(c)从含氟聚合物含水分散体中分离阴离子交换树脂。