Macrocyclic polyester oligomers and processes for polymerizing the same
    12.
    发明授权
    Macrocyclic polyester oligomers and processes for polymerizing the same 失效
    大环聚酯低聚物及其聚合方法

    公开(公告)号:US06420047B2

    公开(公告)日:2002-07-16

    申请号:US09754943

    申请日:2001-01-04

    IPC分类号: B32B2706

    摘要: A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic polyester oligomer and a polymerization catalyst with water and a surfactant, and mixing the macrocyclic polyester oligomer and polymerization catalyst with water and the surfactant thereby forming a suspension. In another embodiment, a process for impregnating macrocyclic polyester oligomers for polymerization includes the steps of providing a suspension of a macrocyclic polyester oligomer and a polymerization catalyst in water, applying the suspension to a base material, drying to remove water from the suspension, and pressing the dried suspension to a desired form. In yet another embodiment, a composition of macrocyclic polyester oligomer includes a macrocyclic polyester oligomer, a polymerization catalyst, and water. In yet another embodiment, a process for polymerizing macrocyclic polyester oligomers includes the steps of mixing a blend material having a macrocyclic polyester oligomer and a polymerization catalyst with water to form a mixture, applying the mixture to a base material, drying to remove water, heating to polymerize the macrocyclic polyester oligomer, and pressing the polymerized macrocyclic polyester oligomer to a desired form.

    摘要翻译: 使用水浆法制备预浸料并制备大环聚酯低聚物的制品​​。 在一个实施方案中,制备大环聚酯低聚物的水悬浮液的方法包括使大环聚酯低聚物和聚合催化剂与水和表面活性剂接触的步骤,并将大环聚酯低聚物和聚合催化剂与水和表面活性剂混合,从而形成 暂停。 在另一个实施方案中,用于聚合大环聚酯低聚物用于聚合的方法包括以下步骤:将大环聚酯低聚物和聚合催化剂的悬浮液提供在水中,将悬浮液施加到基材上,干燥以从悬浮液中除去水, 将干燥的悬浮液变成所需的形式。 在另一个实施方案中,大环聚酯低聚物的组合物包括大环聚酯低聚物,聚合催化剂和水。 在另一个实施方案中,用于聚合大环聚酯低聚物的方法包括以下步骤:将具有大环聚酯低聚物和聚合催化剂的共混材料与水混合以形成混合物,将混合物施加到基材上,干燥以除去水,加热 聚合大环聚酯低聚物,并将聚合的大环聚酯低聚物压制成所需的形式。

    Blend material including macrocyclic polyester oligomers and processes for polymerizing the same
    13.
    发明授权
    Blend material including macrocyclic polyester oligomers and processes for polymerizing the same 失效
    共混材料包括大环聚酯低聚物及其聚合方法

    公开(公告)号:US06369157B1

    公开(公告)日:2002-04-09

    申请号:US09535132

    申请日:2000-03-24

    IPC分类号: C08K310

    摘要: A blend of a macrocyclic polyester oligomer and a polymerization catalyst as a one component ready-to-use material with a long shelf life enables production of parts from macrocyclic polyester oligomers without the modification of existing equipment, thereby reducing time and cost of manufacture while expanding the application of macrocyclic polyester oligomers. In this blend material, the macrocyclic polyester oligomer remains intact in solid state at ambient conditions. Upon melting, the blend material initially forms low viscosity fluid, and then rapidly polymerizes to form high molecular weight polyesters which subsequently solidify to form crystalline polymers. In the case of certain macrocyclic polyester oligomers, for example, poly(1,4-butylene terephthalate), demolding can take place at the polymerization temperature, e.g., at about 180° C. to 200° C., because the resulting polyester polymer solidifies fairly rapidly at that temperature without cooling. In one aspect, the invention generally features a blend material that includes a macrocyclic polyester oligomer, a polymerization catalyst, and optionally, a filler. In another aspect, the invention generally features a process for preparing a blend material. In yet another aspect, the invention features processes such as rotational molding, resin film infusion, pultrusion, resin transfer molding, filament winding, making and using powder-coated or hot melt prepreg, compression molding, and roll wrapping, which use the blend material.

    摘要翻译: 大环聚酯低聚物和聚合催化剂的混合物作为具有长保质期的单组分即用型材料,能够在不改变现有设备的情况下从大环聚酯低聚物制备零件,从而在扩大时减少制造时间和成本 应用大环聚酯低聚物。 在这种共混材料中,大环聚酯低聚物在环境条件下保持固态。 熔化后,共混材料最初形成低粘度流体,然后快速聚合形成高分子量聚酯,随后其固化形成结晶聚合物。 在某些大环聚酯低聚物例如聚对苯二甲酸1,4-丁二醇酯的情况下,脱模可以在聚合温度下进行,例如在约180℃至200℃,因为得到的聚酯聚合物 在该温度下不会冷却而相当迅速地固化。 一方面,本发明通常具有包含大环聚酯低聚物,聚合催化剂和任选的填料的共混材料。 在另一方面,本发明通常具有制备共混材料的方法。 在另一方面,本发明的特征在于使用共混材料的方法,例如旋转成型,树脂膜浸渍,拉挤成型,树脂转移成型,丝缠绕,制造和使用粉末涂覆或热熔预浸料,压缩成型和辊包装 。

    Sandwich Structures and Methods of Making Same
    15.
    发明申请
    Sandwich Structures and Methods of Making Same 审中-公开
    三明治结构及其制作方法

    公开(公告)号:US20080233357A1

    公开(公告)日:2008-09-25

    申请号:US11995534

    申请日:2006-09-27

    IPC分类号: B32B3/20 B29C59/14

    摘要: Sandwich structures and methods of making same. A core material structure based on blow molded segments has been developed to facilitate the use of very thick sandwich panels, 4 to 72 in. thick. The basic concept uses an array of hollow rectangular segments arranged in a sheet, to form the core, with sandwich face skins on top and bottom. The hollow core segments have wall thicknesses from about 0.015 to 0.250 in. Once the blow molded core (BMC) segments and skins are bonded together, using resin infusion (or other molding techniques) the sides of the segments form webs which act as though they were continuous; like a giant rectangular honeycomb. Sandwich structure thicknesses of 4 to 18 in. have been demonstrated.

    摘要翻译: 三明治结构及其制作方法。 已经开发了基于吹塑段的芯材结构,以便于使用4至72英寸厚的非常厚的夹芯板。 基本概念使用排列在片材中的中空矩形片段阵列,以形成核心,顶部和底部具有夹心面皮。 中空芯段具有约0.015至0.250英寸的壁厚。一旦将吹塑芯(BMC)段和表面粘合在一起,使用树脂浸渍(或其它模制技术),段的侧面形成网,其作用就好像它们 是连续的 像一个巨大的矩形蜂窝。 已证明三明治结构厚度为4至18英寸。

    Methods for polymerizing macrocyclic polyester oligomers using catalyst promoters
    16.
    发明授权
    Methods for polymerizing macrocyclic polyester oligomers using catalyst promoters 失效
    使用催化剂促进剂聚合大环聚酯低聚物的方法

    公开(公告)号:US07256241B2

    公开(公告)日:2007-08-14

    申请号:US11329454

    申请日:2006-01-10

    摘要: The invention provides methods and formulations involving the use of promoters that accelerate the polymerization of macrocyclic polyester oligomers (MPOs). For example, in certain embodiments, the invention provides blends of macrocyclic polyester oligomer (MPO), catalyst, and promoter that are substantially stable at ambient temperature for a period of time. The blend material may be stored without premature polymerization of MPO or deactivation of catalyst. The invention also provides processes employing one-part, ready-to-polymerize blends that contain MPO, catalyst, and promoter, as well as processes in which the catalyst and promoter are used in separate streams and are contacted when it is desired to accelerate polymerization of MPO. Methods of the invention offer advantages in the manufacture of thermoplastic parts and composites, due at least in part to the unique properties of MPO.

    摘要翻译: 本发明提供涉及使用促进大环聚酯低聚物(MPO)的聚合的促进剂的方法和配方。 例如,在某些实施方案中,本发明提供在环境温度下基本稳定一段时间的大环聚酯低聚物(MPO),催化剂和促进剂的共混物。 可以不经MPO的过早聚合或催化剂失活来储存共混材料。 本发明还提供了使用含有MPO,催化剂和促进剂的单组分即时聚合共混物的方法,以及其中催化剂和助催化剂在分开的流中使用并且当需要加速聚合时接触的方法 的MPO。 本发明的方法提供了制造热塑性部件和复合材料的优点,至少部分地由于MPO的独特性质。

    Intimate physical mixtures containing macrocyclic polyester oligomer and filler
    17.
    发明授权
    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:US07230044B2

    公开(公告)日:2007-06-12

    申请号:US11260509

    申请日:2005-10-27

    IPC分类号: C08K3/00 C08K3/34

    摘要: 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.

    摘要翻译: 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。