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    • 2. 发明授权
    • Heat stabilized moulding composition
    • 热稳定成型组合物
    • US08772394B2
    • 2014-07-08
    • US11795140
    • 2006-01-12
    • Pieter GijsmanWilhelmus J. M. SourRudy RulkensRobert H. C. Janssen
    • Pieter GijsmanWilhelmus J. M. SourRudy RulkensRobert H. C. Janssen
    • C08K3/22C08L77/00
    • C08L77/00C08K3/014C08K3/22C08K5/005C08K3/0041
    • The invention relates to a thermostabilized thermoplastic molding composition comprising (a) a thermoplastic polyamide composition, consisting of a blend of at least two polyamides comprising (a.1) at least 50% mass, relative to the total mass of the thermoplastic polyamide composition, of a first polyamide (PA-1), being a semi-crystalline polyamide having a melting point Tm-1, or being an amorphous polyamide having a glass transition point Tg-1, wherein Tm-1 and Tg-1 together are denoted as T-1 and T-1 is at least 200° C. and (a.2) a second polyamide (PA-2), with a C/N ratio of at most 7, being a semi-crystalline polyamide having a melting point Tm-2 or an amorphous polyamide having a glass transition point Tg-2, wherein Tm-2 and Tg-2 together are denoted as T-2 and T-2 is at least 20° C. lower than T-1, (b) a stabilizing system comprising a thermostabilizer selected from the group consisting of phenolic thermostabilizers, organic phosphites, aromatic amines, metal salts of elements from Group IB, MB, III and IV of the Periodic Table and metal halides of alkali and alkali earth metals, and combinations thereof, and (c) a metal oxide, or salt thereof, of a transition metal element from Group VB, VIIB, VIIB and VIIIB of the Periodic Table, or a mixture thereof.
    • 本发明涉及一种热稳定热塑性模塑组合物,其包含(a)热塑性聚酰胺组合物,其由至少两种聚酰胺的混合物组成,所述聚酰胺包含相对于热塑性聚酰胺组合物的总质量至少为50质量%的(a.1) 的第一聚酰胺(PA-1),其为具有熔点Tm-1的半结晶聚酰胺,或者是具有玻璃化转变点Tg-1的无定形聚酰胺,其中Tm-1和Tg-1一起表示为 T-1和T-1是至少200℃,和(a.2)C / N比至多为7的第二聚酰胺(PA-2)是具有熔点的半结晶聚酰胺 Tm-2或玻璃化转变点Tg-2的无定形聚酰胺,其中Tm-2和Tg-2一起表示为T-2,T-2比T-1低至少20℃,(b )稳定体系,其包含选自以下的热稳定剂:酚类热稳定剂,有机亚磷酸酯,芳族胺,元素的金属盐 来自元素周期表的IB,MB,III和IV族的元素和碱金属和碱土金属的金属卤化物及其组合,和(c)金属氧化物或其盐,由VB,VIIB, 周期表的VIIB和VIIIB,或其混合物。