Foamable composition
    1.
    发明授权
    Foamable composition 有权
    可发泡组合物

    公开(公告)号:US08399531B2

    公开(公告)日:2013-03-19

    申请号:US11238796

    申请日:2005-09-29

    摘要: A foamable composition comprises at least about 50 wt % of a copolymer of ethylene and alkyl (meth)acrylate having a broad chemical composition distribution (CCD), and having a melt index between about 7 and about 30; about 2 to about 40 wt % of a polyolefin having a carboxylic acid or carboxylic acid anhydride functionality; about 1 to about 10 wt % of one or more foaming agents; and about 1 to about 5 wt % of one or more crosslinking agents. This foamable composition combines ease of processing with good foaming characteristics while avoiding unwanted characteristics, such as fogging.

    摘要翻译: 可发泡组合物包含至少约50重量%的乙烯和具有宽化学组成分布(CCD)的(甲基)丙烯酸烷基酯共聚物,并且具有约7至约30的熔体指数; 约2至约40重量%的具有羧酸或羧酸酐官能团的聚烯烃; 约1至约10重量%的一种或多种发泡剂; 和约1至约5重量%的一种或多种交联剂。 该可发泡组合物将易于加工和良好的起泡特性结合起来,同时避免不想要的特征,例如起雾。

    System and method for determining molecular weight and intrinsic
viscosity of a polymeric distribution using gel permeation
chromatography
    2.
    发明授权
    System and method for determining molecular weight and intrinsic viscosity of a polymeric distribution using gel permeation chromatography 失效
    使用凝胶渗透色谱法测定聚合物分布的分子量和特性粘度的系统和方法

    公开(公告)号:US6064945A

    公开(公告)日:2000-05-16

    申请号:US27443

    申请日:1998-02-20

    摘要: A system and method for analyzing data from a gel permeation chromatography (GPC) or size exclusion chromatography (SEC) system for determining a polymeric sample's molecular weight distribution (MWD) and intrinsic viscosity law (IVL). Data from two or more detectors is used with a least-squares minimization fit. A novel method includes the simultaneous determination of a sample's MWD and IVL using data from two or more detectors. Detectors include a Light Scattering (LS) detector, viscometer (V) and a refractive index (RI) detector. The present invention is insensitive to detector noise in the baseline regions of the peak curve.

    摘要翻译: 用于分析凝胶渗透色谱(GPC)或尺寸排阻色谱(SEC)系统的数据的系统和方法,用于确定聚合物样品的分子量分布(MWD)和特性粘度定律(IVL)。 来自两个或更多个检测器的数据以最小二乘法最小化拟合使用。 一种新颖的方法包括使用来自两个或更多个检测器的数据同时确定样品的MWD和IVL。 检测器包括光散射(LS)检测器,粘度计(V)和折射率(RI)检测器。 本发明对峰曲线的基线区域中的检测器噪声不敏感。

    POLYARYLENE SULFIDE-CONTAINING POLYMER MELT
    3.
    发明申请
    POLYARYLENE SULFIDE-CONTAINING POLYMER MELT 审中-公开
    含聚合物硫化聚合物熔体

    公开(公告)号:US20130005889A1

    公开(公告)日:2013-01-03

    申请号:US13634887

    申请日:2011-03-23

    IPC分类号: C08L81/04 C08K3/22 C08K5/098

    摘要: This invention relates to methods for decreasing the complex viscosity of a polyarylene sulfide polymer melt while maintaining the molecular weight of the polyarylene sulfide with time. This invention also relates to polymer melt compositions comprising a polyarylene sulfide, wherein the complex viscosity of the composition is decreased relative to the complex viscosity of the native polyarylene sulfide measured under the same conditions, and the weight average molecular weight of the polyarylene sulfide is maintained. The methods of decreasing the complex viscosity of a polyarylene sulfide-containing polymer melt, and the polymer melt compositions so obtained, are useful in processes to produce fibers, films, nonwovens, and molded parts from polyarylene sulfides.

    摘要翻译: 本发明涉及降低聚芳硫醚聚合物熔体的复数粘度同时保持聚芳硫醚的分子量随时间的方法。 本发明还涉及包含聚芳硫醚的聚合物熔融组合物,其中组合物的复合粘度相对于在相同条件下测量的天然聚芳硫醚的复数粘度降低,并且保持聚芳硫醚的重均分子量 。 降低含聚芳硫醚的聚合物熔体的复数粘度的方法和如此获得的聚合物熔体组合物可用于从聚亚芳基硫化物制备纤维,膜,无纺布和模制部件的方法中。

    THERMOOXIDATIVE STABILIZATION OF POLYARYLENE SULFIDE COMPOSITIONS
    6.
    发明申请
    THERMOOXIDATIVE STABILIZATION OF POLYARYLENE SULFIDE COMPOSITIONS 审中-公开
    聚亚烷基硫化物组合物的热氧化稳定性

    公开(公告)号:US20130018135A1

    公开(公告)日:2013-01-17

    申请号:US13635025

    申请日:2011-03-22

    IPC分类号: C08L81/04 C08K5/092

    摘要: Provided are novel compositions comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate selected from the group consisting of Sn(O2CR)2, Sn(O2CR)(O2CR′), Sn(O2CR)(O2CR″), and mixtures thereof, where the carboxylate moieties O2CR and O2CR′ independently represent branched carboxylate anions and the carboxylate moiety O2CR″ represents a linear carboxylate anion. Articles comprising the novel compositions are also provided. In addition, methods to improve the thermal stability of polyarylene sulfides, and methods to improve the thermo-oxidative stability of polyarylene sulfides, through the use of the disclosed branched tin(II) carboxylates are provided. The polyarylene sulfide compositions are useful in various applications which require superior thermal resistance, chemical resistance, and electrical insulating properties.

    摘要翻译: 提供了包含聚芳硫醚和至少一种锡添加剂的新型组合物,其包含选自Sn(O 2CR)2,Sn(O 2 CR)(O 2 CR'),Sn(O 2 CR)(O 2 CR) )及其混合物,其中羧酸酯部分O 2CR和O 2 CCR'独立地表示支链羧酸根阴离子,羧酸酯部分O 2 CR“表示直链羧酸根阴离子。 还提供了包含新型组合物的制品。 此外,提供了通过使用所公开的羧基支链的(II)羧酸盐来提高聚亚芳基硫醚的热稳定性的方法和改进聚亚芳基硫醚的热氧化稳定性的方法。 聚芳硫醚组合物可用于需要优异的耐热性,耐化学性和电绝缘性的各种应用中。

    THERMAL STABILIZATION OF POLYARYLENE SULFIDE COMPOSITIONS
    8.
    发明申请
    THERMAL STABILIZATION OF POLYARYLENE SULFIDE COMPOSITIONS 审中-公开
    聚亚烷基硫酸酯组合物的热稳定性

    公开(公告)号:US20130005890A1

    公开(公告)日:2013-01-03

    申请号:US13634969

    申请日:2011-03-22

    IPC分类号: C08L81/04 C08K3/22 C08K5/098

    摘要: Provided are novel compositions comprising a polyarylene sulfide and at least one tin additive comprising a branched tin(II) carboxylate selected from the group consisting of Sn(O2CR)2, Sn(O2CR)(O2CR′), Sn(O2CR)(O2CR″), and mixtures thereof, where the carboxylate moieties O2CR and O2CR′ independently represent branched carboxylate anions and the carboxylate moiety O2CR″ represents a linear carboxylate anion. Articles comprising the novel compositions are also provided. In addition, methods to improve the thermal stability of polyarylene sulfides, and methods to improve the thermo-oxidative stability of polyarylene sulfides, through the use of the disclosed branched tin(II) carboxylates are provided. The polyarylene sulfide compositions are useful in various applications which require superior thermal resistance, chemical resistance, and electrical insulating properties.

    摘要翻译: 提供了包含聚芳硫醚和至少一种锡添加剂的新型组合物,其包含选自Sn(O 2CR)2,Sn(O 2 CR)(O 2 CR'),Sn(O 2 CR)(O 2 CR) )及其混合物,其中羧酸酯部分O 2CR和O 2 CCR'独立地表示支链羧酸根阴离子,羧酸酯部分O 2 CR“表示直链羧酸根阴离子。 还提供了包含新型组合物的制品。 此外,提供了通过使用所公开的羧基支链的(II)羧酸盐来提高聚亚芳基硫醚的热稳定性的方法和改进聚亚芳基硫醚的热氧化稳定性的方法。 聚芳硫醚组合物可用于需要优异的耐热性,耐化学性和电绝缘性的各种应用中。

    High flow, toughened, weatherable polyamide compositions containing a blend of stabilizers
    9.
    发明申请
    High flow, toughened, weatherable polyamide compositions containing a blend of stabilizers 审中-公开
    含有稳定剂混合物的高流动性,增韧型,耐候性聚酰胺组合物

    公开(公告)号:US20050113532A1

    公开(公告)日:2005-05-26

    申请号:US10997719

    申请日:2004-11-23

    摘要: High flow, toughened and weatherable compositions are disclosed herein, comprising 40-94 percent by weight polyamide, 6-60 percent by weight toughener (rubber or ionic copolymer), 0.1 to 10 percent by weight organic acid, and 0.3 to 10 percent by weight of a stabilizer combination (inorganic stabilizer(s) and organic stabilizer(s)). These compositions are suitable for injection molding and can be melt mixed together. Articles of manufacture so formed exhibit outstanding appearance and integrity, even after subjected to rigorous oven aging.

    摘要翻译: 本文公开了高流动性,增韧和耐候性组合物,其包含40-94重量%的聚酰胺,6-60重量%的增韧剂(橡胶或离子共聚物),0.1-10重量%的有机酸和0.3-10重量% 的稳定剂组合(无机稳定剂和有机稳定剂)。 这些组合物适用于注射成型,并且可以熔融混合在一起。 即使经过严格的烘箱老化,这样制成的制品也表现出优异的外观和完整性。