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    HEAT RESISTANT THERMOPLASTIC ARTICLES INCLUDING POLYHYDROXY POLYMERS
    4.
    发明公开
    HEAT RESISTANT THERMOPLASTIC ARTICLES INCLUDING POLYHYDROXY POLYMERS 审中-公开
    与多羟基耐热性热塑性塑料制品

    公开(公告)号：EP2307503A1

    公开(公告)日：2011-04-13

    申请号：EP09790988.1

    申请日：2009-07-30

    申请人： E. I. du Pont de Nemours and Company

    发明人： PALMER, Robert, J. ,  KOBAYASHI, Toshikazu

    IPC分类号： C08L77/02 ,  C08K5/053 ,  C08L77/00 ,  C08K5/00 ,  C08K5/18 ,  C08K5/3435 ,  C08L23/08 ,  C08L29/04

    CPC分类号： C08L77/06 ,  C08G69/265 ,  C08G69/36 ,  C08K5/005 ,  C08K5/053 ,  C08K5/06 ,  C08K5/13 ,  C08K5/18 ,  C08L77/00 ,  Y10T428/139

    摘要： Disclosed is a molded or extruded thermoplastic article, including a thermoplastic polyamide composition including (a) a polyamide resin having a melting point and/or glass transition; (b) 0.25 to 20 weight percent of one or more polyhydroxy polymer(s); (c) 0 to 3 weight percent of one or more co-stabilizer(s) selected from the group consisting of secondary aryl amines, hindered amine light stabilizers, hindered phenols, and mixtures thereof; (d)10 to about 60 weight percent of one or more reinforcement agents; (e) and 0 to 20 weight percent of a polymeric toughener; wherein molded 4 mm test bars prepared from said polyamide composition, and exposed at an test temperature of 170 °C for a test period of 500 hours, in an atmosphere of air, and tested according to ISO 527-2/1A, have, on average, a retention of tensile strength of at least 50 percent, as compared with that of an unexposed control of identical composition and shape. Further disclosed is a molded or extruded thermoplastic article, including a thermoplastic polyamide composition, that when tested at 210 °C for a test period of 500 hours, has a retention of tensile strength of at least 70 percent.

    HEAT RESISTANT THERMOPLASTIC ARTICLES INCLUDING CO-STABILIZERS
    8.
    发明公开
    HEAT RESISTANT THERMOPLASTIC ARTICLES INCLUDING CO-STABILIZERS 有权
    与KO稳定剂的耐热性热塑性塑料制品

    公开(公告)号：EP2307480A1

    公开(公告)日：2011-04-13

    申请号：EP09790983.2

    申请日：2009-07-30

    申请人： E. I. du Pont de Nemours and Company

    发明人： PALMER, Robert, J. ,  KOBAYASHI, Toshikazu

    IPC分类号： C08G69/26 ,  C08G69/36 ,  C08K5/053 ,  C08L77/00 ,  C08K5/00 ,  C08K5/18 ,  C08K5/06 ,  C08K5/103

    CPC分类号： C08L77/06 ,  C08G69/265 ,  C08G69/36 ,  C08K5/005 ,  C08K5/053 ,  C08K5/06 ,  C08K5/13 ,  C08K5/18 ,  C08L77/00 ,  Y10T428/139

    摘要： Disclosed is a molded or extruded thermoplastic article including a polyamide composition including (a) a polyamide resin having a melting point and/or glass transition; (b) 0.1 to 10 weight percent of one or more polyhydric alcohols having more than two hydroxyl groups and having a number average molecular weight (M
    n ) of less than 2000; (c) 0.1 to 3 weight percent of one or more co-stabilizer(s) selected from the group consisting of secondary aryl amines and hindered amine light stabilizers, and mixtures thereof; (d) 10 to 60 weight percent of one or more reinforcement agents; and (e) 0 to 50 weight percent of a polymeric toughener including a reactive functional group and/or a metal salt of a carboxylic acid; wherein 4 mm test bars prepared from said polyamide composition, exposed at a test temperature at 170 °C for a test period of 500 hours have a retention of tensile strength, on average, of at least 50 percent, as compared with that of unexposed control of identical composition and shape. Further disclosed is a molded or extruded thermoplastic article, including a thermoplastic polyamide composition, wherein 4 mm test bars of said thermoplastic polyamide composition, when exposed at 210 °C for a test period of 500 hours, have a retention of tensile strength of at least 70 percent. Disclosed is a molded or extruded thermoplastic article including a polyamide composition including (a) a polyamide resin having a melting point and/or glass transition; (b) 0.1 to