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    • 4. 发明申请
    • POLYAMIDE MOLDING MATERIALS REINFORCED WITH FLAT GLASS FIBERS AND INJECTION MOLDED PARTS MADE THEREOF
    • 用平板玻璃纤维增​​强的聚酰胺模塑材料和其中的注塑成型件
    • US20080167415A1
    • 2008-07-10
    • US11966688
    • 2007-12-28
    • Georg STOEPPELMANNOrnulf REXINVolker EICHHORN
    • Georg STOEPPELMANNOrnulf REXINVolker EICHHORN
    • C08K3/40C08L77/00B29C45/00B29C47/00B29C49/00
    • C08L77/00C08K3/40C08L2205/02C08L2205/16C08L2666/20
    • The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix, comprising the following components: (A) 0 to 60 wt.-% of at least one aliphatic, partly crystalline polyamide with a solution viscosity, measured in m-cresol (0.5 wt-%), of ηrel less than 1.9, (B) 0 to 60 wt.-% of at least one amorphous or microcrystalline polyamide based on aliphatic, cycloaliphatic or aromatic diamines, dicarboxylic acids, lactams and/or aminocarboxylic acids, preferably with 6 to 36 carbon atoms, or a mixture of such homopolyamides and/or copolyamides, wherein the components (A) and (B) fulfill the condition: (A)+(B)=20 to 60 wt.-% and that, in the case of a mixture of components (A) and (B), at least 50 weight parts aliphatic blocks (A) are present in the mixture, and a filler component, comprising: (C) 40 to 80 wt.-% flat glass fibers with elongated shape, and the glass fibers have a non-circular cross-sectional area and a size ratio of the main cross-sectional axis to the secondary cross-sectional axis of between 2 to 5, particularly between 3 and 4, and (D) 0 to 40 wt.-% particle like or layer like fillers, with the prerequisite that carbon fibers are excluded, wherein the polyamide molding materials optionally comprise up to 5 wt.-% of further usual additives and auxiliary agents (E), and wherein the weight of the components (A) to (E) sums up to 100%.
    • 本发明涉及具有高缺口冲击强度的增强聚酰胺成型材料,其包含低粘度聚酰胺和平板玻璃纤维作为增强介质,其特征在于聚酰胺基质,其包含以下组分:(A)0至60重量% 至少一种脂族部分结晶的聚酰胺,其溶液粘度(m-甲酚(0.5重量%))小于1.9,(B)0至60重量% 至少一种基于脂族,脂环族或芳族二胺,二羧酸,内酰胺和/或氨基羧酸,优选具有6至36个碳原子的非晶或微晶聚酰胺,或这些均聚酰胺和/或共聚酰胺的混合物,其中组分(A )和(B)满足条件:<?in-line-formula description =“In-line Formulas”end =“lead”?>(A)+(B)= 20至60 wt .-% line-formula description =“In-line Formulas”end =“tail”?>而在组分(A)和(B)的混合物的情况下,至少50重 t部分脂肪族嵌段(A)存在于混合物中,以及填料组分,其包含:(C)40至80重量%的具有细长形状的扁平玻璃纤维,并且玻璃纤维具有非圆形横截面积 并且主横截面轴与二次横截面轴的尺寸比在2至5之间,特别是3至4之间,和(D)0至40重量%的颗粒状或层状填料,其中 排除碳纤维的先决条件,其中聚酰胺成型材料任选地包含最多5重量%的通常的添加剂和助剂(E),并且其中组分(A)至(E)的重量总计达100 %。