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    • 2. 发明申请
    • Molded Articles Having a Swirl-Like or Marble-Like Appearance and Compositions For Producing Same
    • 具有类似漩涡或大理石的外观和组合的模制品用于生产相同的
    • US20150329720A1
    • 2015-11-19
    • US14808404
    • 2015-07-24
    • Ticona LLC
    • Bruce M. Mulholland
    • C08L77/06C08L67/02C08L59/02
    • C08L77/06C08L59/02C08L67/02C08L67/025C08L2207/02C08L59/00
    • Polymer compositions are described that contain at least two different immiscible phases for producing molded articles having a swirl-like or marble-like appearance. The first phase, for instance, may contain one or more polyoxymethylene polymers. The second phase, on the other hand, contains one or more polymers that together have a melting point that is from about 5° to about 30° different than the melting point of the polyoxymethylene polymer. In one embodiment, the second phase may contain a thermoplastic elastomer, a glycol-modified polyethylene terephthalate, or a polyimide and may have a melting point that is higher than the melting point of the polyoxymethylene polymer. The second phase is present in the polymer composition in relatively low amounts, such as in amounts less than about 5% by weight. The second phase can contain a high concentration of colorants that creates a contrast of colors when the molded article is produced.
    • 描述了含有至少两种不同的不混溶相的聚合物组合物,用于生产具有漩涡状或大理石状外观的模塑制品。 例如,第一相可以含有一种或多种聚甲醛聚合物。 另一方面,第二相含有一种或多种聚合物,它们的熔点与聚甲醛聚合物的熔点不同,为约5°至约30°。 在一个实施方案中,第二相可以含有热塑性弹性体,二醇改性的聚对苯二甲酸乙二醇酯或聚酰亚胺,并且可以具有高于聚甲醛聚合物的熔点的熔点。 第二相以相对低的量存在于聚合物组合物中,例如以小于约5重量%的量存在。 第二阶段可以含有高浓度的着色剂,当生产模塑制品时产生颜色的对比度。
    • 7. 发明申请
    • Stabilized Thermoplastic Copolyesters
    • 稳定的热塑性共聚酯
    • US20150299426A1
    • 2015-10-22
    • US14725029
    • 2015-05-29
    • Ticona LLC
    • Bruce M. Mulholland
    • C08K5/3475D01F6/62C08K5/17C08K5/3492C08K5/098
    • C08K5/3475C08K5/0008C08K5/098C08K5/17C08K5/34924D01F6/62D10B2331/04C08L67/02
    • A thermoplastic copolyester composition that is able to maintain its color and mechanical strength after exposure to full weathering is provided. More specifically, a stabilizing system is employed in the composition that contains a mixture of one or more light stabilizers (e.g., hindered amines, UV absorbers, etc.), antioxidants (e.g., sterically hindered phenols, organophosphorous compounds, etc.), and secondary amines. By selectively controlling the type and concentration of the stabilizers, the present inventor has discovered that a composition may be formed that is generally resistant to color change and crazing (i.e., micro-crack formation) upon weathering. In addition to a stabilizing system, a processing stabilizer is also employed in the copolyester resin that includes a metal salt of a fatty acid having a chain length of greater than 22 carbon atoms. The present inventor has discovered that such stabilizers are particularly effective in reducing internal stresses during fiber or film formation and thereby minimizing brittleness of the resulting article. For example, a monofilament formed from the thermoplastic copolyester resin of the present invention may exhibit an elongation at break retention percentage of from about 85% to about 150% after exposure to a Xenon arc at 2000 kJ/m2 in accordance with Test Method SAE J1960.
    • 提供能够在暴露于全部风化之后能够保持其颜色和机械强度的热塑性共聚酯组合物。 更具体地说,在组合物中采用稳定体系,其包含一种或多种光稳定剂(例如受阻胺,UV吸收剂等),抗氧化剂(例如空间位阻酚,有机磷化合物等)的混合物,和 仲胺。 通过选择性地控制稳定剂的类型和浓度,本发明人已经发现,可以形成通常在耐候时耐变色和龟裂(即微裂纹形成)的组合物。 除了稳定体系外,还包括具有链长大于22个碳原子的脂肪酸的金属盐的共聚酯树脂中的加工稳定剂。 本发明人已经发现,这种稳定剂在纤维或成膜过程中特别有效地降低内部应力,从而使得到的制品的脆性最小化。 例如,根据测试方法SAE J1960,由本发明的热塑性共聚酯树脂形成的单丝可以在暴露于2000kJ / m 2的氙弧之后显示约85%至约150%的断裂伸长率 。