公开(公告)号：US08975325B2

公开(公告)日：2015-03-10

申请号：US14294086

申请日：2014-06-02

申请人： DSM IP Assets B.V.

发明人： Pieter Gijsman ,  Wilhelmus J. M. Sour ,  Rudy Rulkens ,  Robert H. C. Janssen

IPC分类号： C08K3/08 ,  C08L77/00 ,  B29C45/00 ,  C08L77/02

CPC分类号： C08K3/08 ,  B29C45/0001 ,  C08K2003/0856 ,  C08L77/00 ,  C08L77/02 ,  C08L2201/08 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2666/20

摘要： Non-fibrous-reinforced thermoplastic molding compositions comprising a metal powder as a heat stabilizer are provided. The metal powder has a weight average particle size (dm) of at most 1 mm and the metal in the metal powder is selected from the group consisting of elementary metals from Group VB, VIB, VIIB and VIIIB of the Periodic Table, and mixtures thereof. A thermoplastic polyamide is also provided with an Mw of at most 50,000 g/mol, or a blend of at least two thermoplastic polymers with Tmelt or Tg differing by at least 20° C., or a second thermostabilizer. The invention also relates to the use of these compositions in high temperature applications.

摘要翻译： 提供了包含金属粉末作为热稳定剂的非纤维增强热塑性模塑组合物。 金属粉末的重均粒径（dm）至多为1mm，金属粉末中的金属选自元素周期表的VB族，VIB族，VIIB族和VIIIB族的元素金属，以及它们的混合物 。 热塑性聚酰胺还具有至多50,000g / mol的Mw，或Tmelt或Tg至少为20℃的至少两种热塑性聚合物的共混物，或第二热稳定剂。 本发明还涉及这些组合物在高温应用中的用途。

公开(公告)号：US08969460B2

公开(公告)日：2015-03-03

申请号：US14288174

申请日：2014-05-27

申请人： DSM IP Assets B.V.

发明人： Pieter Gijsman ,  Wilhelmus J. M. Sour ,  Rudy Rulkens ,  Robert H. C. Janssen

IPC分类号： C08K3/22 ,  C08L77/00 ,  C08K3/00 ,  C08K5/00

CPC分类号： C08L77/00 ,  C08K3/014 ,  C08K3/22 ,  C08K5/005 ,  C08K3/0041

摘要： A thermostabilized thermoplastic molding composition includes a) a thermoplastic polyamide composition which consists of a blend of at least two polyamides. The at least two polyamides include a1) at least 50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a first polyamide (PA-1) selected from the group consisting of polyamide-4,6, polyamide-6,6 and semi-aromatic polyamides and mixtures thereof; and a2) an amount of 1-50 mass %, relative to the total mass of the thermoplastic polyamide composition, of a second polyamide (PA-2) selected from the group consisting of polyamide-6 and copolymers thereof. The composition also contains b) 0.001-3 mass %, relative to the total mass of the thermoplastic polyamide composition, of a copper salt; and c) 0.01-10 mass %, relative to the total mass of the thermoplastic polyamide composition, of iron oxide. The molding composition exhibits reduced deterioration when exposed to an elevated temperature of 230° C. for a prolonged time period of 1000 hours as compared to an identical molding composition including a Cul/KI stabilization system but not including the iron oxide.

摘要翻译： 热稳定的热塑性模塑组合物包括：a）由至少两种聚酰胺的共混物组成的热塑性聚酰胺组合物。 所述至少两种聚酰胺包括a1）相对于热塑性聚酰胺组合物的总质量为至少50质量％的选自聚酰胺-4,6，聚酰胺-6，聚酰胺-6的聚酰胺（PA-1） 6和半芳族聚酰胺及其混合物; 和a2）相对于热塑性聚酰胺组合物的总质量为1-50质量％的选自聚酰胺-6及其共聚物的第二聚酰胺（PA-2）的量。 组合物还含有相对于热塑性聚酰胺组合物的总质量为0.001-3质量％的铜盐; 和c）相对于热塑性聚酰胺组合物的总质量为0.01-10质量％的氧化铁。 与包含Cul / KI稳定体系但不包含氧化铁的相同的成型组合物相比，当与230℃的升高的温度相比长时间的1000小时时，模塑组合物显示出降低的劣化。