POLYAMIDE COMPOSITIONS WITH IMPROVED SALT RESISTANCE AND HEAT STABILITY
    1.
    发明申请
    POLYAMIDE COMPOSITIONS WITH IMPROVED SALT RESISTANCE AND HEAT STABILITY 失效
    具有改善耐盐碱性和耐热稳定性的聚酰胺组合物

    公开(公告)号:US20110190433A1

    公开(公告)日:2011-08-04

    申请号:US13015616

    申请日:2011-01-28

    摘要: Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula —C(O)(CH2)mC(O)NHCH2ArCH2NH—  (I) and about 45 to about 75 mole percent repeat units of the formula —C(O)(CH2)mC(O)NH(CH2)nNH—  (II) wherein m is 8, 10, and/or 12, n is 6, 10 and/or 12 and Ar is a meta-substituted benzene ring; and said polyamide has a melting point equal to or less than 225° C.; and 0.25 to 20 weight percent of one or more polyhydroxy polymer(s) having a number average molecular weight of at least 2000 and selected from the group consisting of ethylene/vinyl alcohol copolymer and poly(vinyl alcohol). Also disclosed are molded or extruded articles including the polyamide composition.

    摘要翻译: 公开了包含至少一种半芳族共聚酰胺的聚酰胺组合物,所述半芳族共聚酰胺基本上由约25至约55摩尔%的式-C(O)(CH 2)m C(O)NHCH 2 ArCH 2 NH-(I )和约45至约75摩尔%的式-C(O)(CH 2)m C(O)NH(CH 2)n NH-(II)的重复单元,其中m为8,10和/或12,n为6 ,10和/或12,Ar是间位取代的苯环; 并且所述聚酰胺具有等于或小于225℃的熔点; 和0.25至20重量%的数均分子量为至少2000的一种或多种多羟基聚合物,并且选自乙烯/乙烯醇共聚物和聚(乙烯醇)。 还公开了包括聚酰胺组合物的模制或挤出制品。

    Polyamide compositions with improved salt resistance and heat stability
    2.
    发明授权
    Polyamide compositions with improved salt resistance and heat stability 失效
    具有改善的耐盐性和热稳定性的聚酰胺组合物

    公开(公告)号:US08349932B2

    公开(公告)日:2013-01-08

    申请号:US13015616

    申请日:2011-01-28

    IPC分类号: C08K3/10 C08K3/22

    摘要: Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula —C(O)(CH2)mC(O)NHCH2ArCH2NH—  (I) and about 45 to about 75 mole percent repeat units of the formula —C(O)(CH2)mC(O)NH(CH2)nNH—  (II) wherein m is 8, 10, and/or 12, n is 6, 10 and/or 12 and Ar is a meta-substituted benzene ring; and said polyamide has a melting point equal to or less than 225° C.; and 0.25 to 20 weight percent of one or more polyhydroxy polymer(s) having a number average molecular weight of at least 2000 and selected from the group consisting of ethylene/vinyl alcohol copolymer and poly(vinyl alcohol). Also disclosed are molded or extruded articles including the polyamide composition.

    摘要翻译: 公开了包含至少一种半芳族共聚酰胺的聚酰胺组合物,所述半芳族共聚酰胺基本上由约25至约55摩尔%的式-C(O)(CH 2)m C(O)NHCH 2 ArCH 2 NH-(I )和约45至约75摩尔%的式-C(O)(CH 2)m C(O)NH(CH 2)n NH-(II)的重复单元,其中m为8,10和/或12,n为6 ,10和/或12,Ar是间位取代的苯环; 并且所述聚酰胺具有等于或小于225℃的熔点; 和0.25至20重量%的数均分子量为至少2000的一种或多种多羟基聚合物,并且选自乙烯/乙烯醇共聚物和聚(乙烯醇)。 还公开了包括聚酰胺组合物的模制或挤出制品。

    Polyamide compositions with improved salt resistance and heat stability
    4.
    发明授权
    Polyamide compositions with improved salt resistance and heat stability 失效
    具有改善的耐盐性和热稳定性的聚酰胺组合物

    公开(公告)号:US08232337B2

    公开(公告)日:2012-07-31

    申请号:US13015613

    申请日:2011-01-28

    IPC分类号: C08K5/053

    摘要: Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula —C(O)(CH2)mC(O)NHCH2ArCH2NH—  (I) and about 45 to about 75 mole percent repeat units of the formula —C(O)(CH2)mC(O)NH(CH2)nNH—  (II) wherein m is 8, 10, and/or 12, n is 6, 10 and/or 12 and Ar is a meta-substituted benzene ring; and said polyamide has a melting point equal to or less than 225° C.; and 0.1 to 15 weight percent of one or more polyhydric alcohols having more than two hydroxyl groups and having a number average molecular weight (Mn) of less than 2000. Also disclosed are molded or extruded articles including the polyamide composition.

    摘要翻译: 公开了包含至少一种半芳族共聚酰胺的聚酰胺组合物,所述半芳族共聚酰胺基本上由约25至约55摩尔%的式-C(O)(CH 2)m C(O)NHCH 2 ArCH 2 NH-(I )和约45至约75摩尔%的式-C(O)(CH 2)m C(O)NH(CH 2)n NH - (II)的重复单元,其中m为8,10和/或12,n为6 ,10和/或12,Ar是间位取代的苯环; 并且所述聚酰胺具有等于或小于225℃的熔点; 和0.1至15重量%的一种或多种具有多于两个羟基并且数均分子量(Mn)小于2000的多元醇。还公开了包含聚酰胺组合物的模制或挤出制品。

    HOLLOW STRUCTURES AND ASSOCIATED METHOD FOR CONVEYING REFRIGERANT FLUIDS
    8.
    发明申请
    HOLLOW STRUCTURES AND ASSOCIATED METHOD FOR CONVEYING REFRIGERANT FLUIDS 审中-公开
    用于输送制冷剂流体的中空结构和相关方法

    公开(公告)号:US20110155359A1

    公开(公告)日:2011-06-30

    申请号:US12963772

    申请日:2010-12-09

    IPC分类号: F28F21/06

    摘要: The present invention relates to the field of flexible hollow structure suitable to convey a refrigerant fluid and methods for their use. Disclosed hollow structures comprising a layer made of a resin composition comprising one or more semi-aromatic polyamides and one or more functionalized polyolefins show a balance of properties in terms of flexibility, permeation barrier against a refrigerant fluid and retention of properties upon heat and refrigerant fluid exposure.

    摘要翻译: 本发明涉及适于输送制冷剂流体的柔性中空结构领域及其使用方法。 包括由包含一种或多种半芳族聚酰胺和一种或多种官能化聚烯烃的树脂组合物制成的层的公开的中空结构在柔性,制冷剂流体的渗透阻挡和保持热和制冷剂流体性质方面表现出平衡 曝光。

    Thermoplastic multilayer tubes and process for manufacturing
    9.
    发明授权
    Thermoplastic multilayer tubes and process for manufacturing 有权
    热塑性多层管及其制造方法

    公开(公告)号:US09200731B2

    公开(公告)日:2015-12-01

    申请号:US13426635

    申请日:2012-03-22

    摘要: Disclosed is a multi-layer tube including: A) a first layer including a first layer composition including a1) about 25 to 100 weight percent of a semi-aromatic polyamide whose repeat units consist essentially of about 60 to about 85 molar percent of repeat units of the formula —C(O)(CH2)mC(O)NH(CH2)6NH—  (I) wherein m is 8 and/or 10, and about 15 to about 40 molar percent of repeat units of the formula B) a second layer including a second layer composition including b1) 50 to 100 weight percent of poly(caprolactam); with the proviso that the first layer and second layer are in direct contact; and the weight percents are based upon the total weight of the first layer composition and the second layer composition, respectively.

    摘要翻译: 公开了一种多层管,其包括:A)包含第一层组合物的第一层,其包含a1)约25至100重量%的半芳族聚酰胺,其重复单元基本上由约60至约85摩尔%的重复单元 的式-C(O)(CH 2)m C(O)NH(CH 2)6 NH-(I)其中m为8和/或10,和约15至约40摩尔%的式B)的重复单元a) 第二层包括第二层组合物,其包含b1)50至100重量%的聚(己内酰胺); 条件是第一层和第二层直接接触; 并且重量百分数分别基于第一层组合物和第二层组合物的总重量。

    Melt-blended thermoplastic composition
    10.
    发明授权
    Melt-blended thermoplastic composition 有权
    熔融混合热塑性组合物

    公开(公告)号:US08691911B2

    公开(公告)日:2014-04-08

    申请号:US13357991

    申请日:2012-01-25

    IPC分类号: C08G69/26

    CPC分类号: C08L77/06

    摘要: Disclosed is a melt-blended thermoplastic composition including: A) a polyamide composition including a) 55 to 90 weight percent semi-crystalline semi-aromatic copolyamide; wherein the semi-aromatic copolyamide has a DMA tan delta peak value of greater than or equal to 0.23; and heat of fusion of at least 20 J/g and b) 10 to 45 weight percent aliphatic homopolyamide; wherein the aliphatic homopolyamide has a DMA tan delta peak value of less than or equal to 0.21; and heat of fusion of at least 30 J/g; B) 0 to 45 weight percent polymeric toughener; C) 0 to 20 weight percent plasticizer; and D) 0 to 45 weight percent reinforcing agent; wherein said melt-blend composition has a glass transition and has a tan delta peak (E″/E′) value of 0.21 or lower at said glass transition. Further disclosed herein is a method for providing the melt-blended thermoplastic composition.

    摘要翻译: 公开了一种熔融共混热塑性组合物,其包括:A)聚酰胺组合物,其包含a)55至90重量%的半结晶半芳族共聚酰胺; 其中所述半芳族共聚酰胺具有大于或等于0.23的DMAtanδδ峰值; 和至少20J / g的熔化热和b)10至45重量%的脂族均聚酰胺; 其中所述脂族均聚酰胺具有小于或等于0.21的DMAtanδδ峰值; 和熔化热至少为30J / g; B)0至45重量%的聚合物增韧剂; C)0〜20重量%的增塑剂; 和D)0至45重量%的增强剂; 其中所述熔融共混组合物具有玻璃化转变并且在所述玻璃化转变时具有0.21以下的tanδ峰(E“/ E')值。 本文进一步公开的是提供熔融共混的热塑性组合物的方法。