Linear polyphosphonates that exhibit an advantageous combination of properties, and methods related thereto
    1.
    发明申请
    Linear polyphosphonates that exhibit an advantageous combination of properties, and methods related thereto 审中-公开
    显示出有利的性质组合的线性多聚膦酸酯,以及与之相关的方法

    公开(公告)号:US20040167283A1

    公开(公告)日:2004-08-26

    申请号:US10374155

    申请日:2003-02-24

    CPC classification number: C08G79/04 C08L67/00 C08L85/02 C08L2666/22

    Abstract: Disclosed are linear polyphosphonates produced by a transesterification process. These linear polyphosphonates exhibit a unique and advantageous combination of properties, such as outstanding fire resistance, unexpectedly high Tg's and good toughness at a low molecular weight. The favorable processing characteristics (such as low melt viscosity and excellent melt stability) of these linear polyphosphonates enable economic processing. Also disclosed are polymer compositions that comprise these linear polyphosphonates and at least one other polymer, wherein the resulting polymer compositions exhibit flame retardant properties. Further disclosed are articles of manufacture produced from these polymers, such as fibers, films, coated substrates, moldings, foams, fiber-reinforced articles, or any combination thereof, these articles may be coated with a moisture barrier to enhance their moisture resistance properties.

    Abstract translation: 公开了通过酯交换方法制备的线性多聚膦酸酯。 这些线性多聚膦酸酯表现出独特和有利的性能组合,例如优异的耐火性,出人意料的高Tg和低分子量的良好韧性。 这些线性多聚膦酸酯的有利加工特性(如低熔融粘度和优异的熔融稳定性)能经济地加工。 还公开了包含这些线性多聚膦酸酯和至少一种其它聚合物的聚合物组合物,其中所得聚合物组合物表现出阻燃性能。 进一步公开的是由这些聚合物制成的制品,例如纤维,薄膜,涂覆的基材,模制品,泡沫,纤维增强制品或其任何组合,这些制品可以用防潮层涂覆以增强其防潮性能。

    Macromers of poly (hydroxyalkanoates)
    2.
    发明申请
    Macromers of poly (hydroxyalkanoates) 失效
    聚(羟基链烷酸酯)大分子单体

    公开(公告)号:US20020042481A1

    公开(公告)日:2002-04-11

    申请号:US09929073

    申请日:2001-08-15

    Abstract: The thermal degradation of the biodegradable bacterial polyesters poly(3-hydroxybutyrate), PHB, and poly(3-hydroxybutyrate-co-3-hydroxyvalerate), PHB/V produces a macromer, especially a 1000-6000 g/mol macromolecule, which contains an unsaturated end group as well as a carboxylic acid end group. The macromers may be polymerized to produce homopolymers and copolymers for different applications in which amphiphilic and biocompatible properties are required, for example, drug delivery systems.

    Abstract translation: 可生物降解的细菌聚酯聚(3-羟基丁酸酯),PHB和聚(3-羟基丁酸酯 - 共-3-羟基戊酸酯),PHB / V的热降解产生大分子单体,特别是1000-6000g / mol大分子,其含有 不饱和端基以及羧酸端基。 大分子单体可以聚合以产生需要两亲性和生物相容性质的不同应用的均聚物和共聚物,例如药物递送系统。

    Intimate physical mixtures containing macrocyclic polyester oligomer and filler
    4.
    发明申请
    Intimate physical mixtures containing macrocyclic polyester oligomer and filler 失效
    含有大环聚酯低聚物和填料的亲水性物理混合物

    公开(公告)号:US20040225058A1

    公开(公告)日:2004-11-11

    申请号:US10859784

    申请日:2004-06-03

    Abstract: The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler with high aspect ratio can be used. In one aspect, the invention provides mixtures of MPO with magnesium silicate. In another aspect, the invention provides a mixture of MPO, filler, and polymerization catalyst as a one-part, ready-to-polymerize material with a long shelf life. The one-part material can be used, for example, in the manufacture of parts without modification of existing processing equipment.

    Abstract translation: 本发明提供大环聚酯低聚物(MPO)和填料的亲密物理混合物,以及其制备和使用方法。 填料在聚合物基质中的分散性得到改善,可以使用较大量的高纵横比的填料。 一方面,本发明提供了MPO与硅酸镁的混合物。 另一方面,本发明提供了MPO,填料和聚合催化剂的混合物,作为具有长保质期的单组分即时聚合材料。 单件材料可以用于例如零件的制造而不改变现有的加工设备。

    Copolyester resin and articles using the same
    6.
    发明申请
    Copolyester resin and articles using the same 有权
    共聚酯树脂和使用相同的物品

    公开(公告)号:US20040260054A1

    公开(公告)日:2004-12-23

    申请号:US10871159

    申请日:2004-06-17

    CPC classification number: C08G63/668 Y10T428/13 Y10T428/1352

    Abstract: Disclosed is a copolyester resin composed mainly of terephthalic acid, ethyleneglycol, 1,4-cyclohexanedimethanol, polyethyleneglycol bisphenol-A and a multifunctional monomer. According to the current invention, the multifunctional monomer and polyethyleneglycol bisphenol-A are additionally copolymerized along with 1,4-cyclohexanedimethanol, whereby the resultant copolyester resin can have low haze and high melt viscosity and melt strength, with superior moldability due to low melt pressure. In addition, extrusion blow molded articles and profile extruded articles, such as bottles and tubes, are provided by use of the copolyester resin having superior properties.

    Abstract translation: 公开了主要由对苯二甲酸,乙二醇,1,4-环己烷二甲醇,聚乙二醇双酚A和多官能单体组成的共聚酯树脂。 根据本发明,多官能单体和聚乙二醇双酚A与1,4-环己烷二甲醇另外共聚,由此得到的共聚酯树脂具有低雾度和高熔体粘度和熔体强度,由于熔体压力低而具有优异的成型性 。 此外,通过使用具有优异性能的共聚酯树脂提供挤出吹塑制品和型材挤出制品,例如瓶和管。

    Multifilament yarns and methods of making
    8.
    发明申请
    Multifilament yarns and methods of making 有权
    多丝纱及其制作方法

    公开(公告)号:US20020077448A1

    公开(公告)日:2002-06-20

    申请号:US09969275

    申请日:2001-10-02

    CPC classification number: A61L17/12 D01F6/84

    Abstract: The present invention is directed to processes for the manufacture of multifilament yarn, including the steps of extruding multifilaments of a polymer containing at least mole 85 percent L-lactide and not more than 15 mole percent glycolide, spinning the extruded multifilaments to form a spun yarn, passing the spun multifilament yarn through an orientation roll heated at a temperature of less than 98null C. and drawing the spun multifilament yarn to a draw ratio of at least 4:1 to form an oriented multifilament fiber, annealing the oriented multifilament yarn at a temperature greater than that of the orientation roll, and redrawing the annealed, oriented multifilament yarn by at least 10 percent at a temperature lower than the temperature of annealing.

    Abstract translation: 本发明涉及多丝纱线的制造方法,包括以下步骤:挤出含有至少85%的L-丙交酯和不超过15摩尔%乙交酯的聚合物的复丝,将挤出的复丝纺丝以形成短纤纱 将纺丝复丝纱线通过在低于98℃的温度下加热的定向辊,并将纺丝复丝纱线拉伸至至少4:1的拉伸比,以形成定向复丝纤维,将定向复丝纱线退火 温度大于取向辊的温度,并且在低于退火温度的温度下将退火的定向复丝纱线重新拉伸至少10%。

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