专利名称：HEAT RESISTANT THERMOPLASTIC
ARTICLES INCLUDING POLYHYDROXY
POLYMERS
发明人：Robert J. Palmer,Toshikazu Kobayashi 申请号：US12512125
申请日：20090730xposed
公开号：US20100029815A1
公开日：
20100204
专利内容由知识产权出版社提供
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.
申请人：Robert J. Palmer,Toshikazu Kobayashi
地址：Jonzier-Epagny FR,Chadds Ford PA US 国籍：FR,US
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