公开(公告)号：US09845389B2

公开(公告)日：2017-12-19

申请号：US14360543

申请日：2011-12-23

申请人： Philipp Harder ,  Herbert Mossauer

发明人： Philipp Harder ,  Herbert Mossauer

IPC分类号： B60C1/00 ,  C08L77/06 ,  C08G69/26 ,  C08G69/36 ,  C09K21/12 ,  B29C45/00 ,  B29K77/00 ,  B29K105/00 ,  B29L31/34

CPC分类号： C08L77/06 ,  B29C45/0001 ,  B29C2945/00 ,  B29K2077/00 ,  B29K2105/0026 ,  B29L2031/3481 ,  C08G69/265 ,  C08G69/36 ,  C08J2377/10 ,  C08K7/14 ,  C09K21/12

摘要： A polyamide molding material is proposed, which comprises at least one partially crystalline, partially aromatic polyamide (A) and at least one amorphous polyamide (B). The polyamides (A) and (B) together make up 30-60 wt.-% of the polyamide molding material. Furthermore, the polyamide molding material comprises 40-70 wt.-% glass fibers (C) having flat cross section, 0-15 wt.-% of at least one nonhalogenated flame retardant (D), and 0-10 wt.-% further additives (E), the components (A) to (E) adding up to 100 wt.-% of the polyamide molding material. The at least one partially crystalline, partially aromatic polyamide (A) has a glass transition temperature of at least 105° C. The polyamide molding material according to the invention is preferably distinguished in an injection-molding burr formation test in that, at a melt temperature of 320° C. and a tool temperature of 90° C., and a dynamic pressure of 100 bar and a holding pressure of 400 bar, at the flow path end of a mold arm having a vent gap dimension of 30 μm, burrs having a length G of at most 30 μm result. Such a polyamide molding material results in molded parts having good surface quality and low warpage when injection molded and is suitable for the production of housings or housing parts of electrical and electronic devices.

公开(公告)号：US20140329944A1

公开(公告)日：2014-11-06

申请号：US14360543

申请日：2011-12-23

申请人： Philipp Harder ,  Herbert Mossauer

发明人： Philipp Harder ,  Herbert Mossauer

IPC分类号： C08L77/06 ,  B29C45/00

CPC分类号： C08L77/06 ,  B29C45/0001 ,  B29C2945/00 ,  B29K2077/00 ,  B29K2105/0026 ,  B29L2031/3481 ,  C08G69/265 ,  C08G69/36 ,  C08J2377/10 ,  C08K7/14 ,  C09K21/12

摘要： A polyamide molding material is proposed, which comprises at least one partially crystalline, partially aromatic polyamide (A) and at least one amorphous polyamide (B). The polyamides (A) and (B) together make up 30-60 wt.-% of the polyamide molding material. Furthermore, the polyamide molding material comprises 40-70 wt.-% glass fibers (C) having flat cross section, 0-15 wt.-% of at least one nonhalogenated flame retardant (D), and 0-10 wt.-% further additives (E), the components (A) to (E) adding up to 100 wt.-% of the polyamide molding material. The at least one partially crystalline, partially aromatic polyamide (A) has a glass transition temperature of at least 105° C. The polyamide molding material according to the invention is preferably distinguished in an injection-molding burr formation test in that, at a melt temperature of 320° C. and a tool temperature of 90° C., and a dynamic pressure of 100 bar and a holding pressure of 400 bar, at the flow path end of a mold arm having a vent gap dimension of 30 μm, burrs having a length G of at most 30 μm result. Such a polyamide molding material results in molded parts having good surface quality and low warpage when injection molded and is suitable for the production of housings or housing parts of electrical and electronic devices.

摘要翻译： 提出了一种聚酰胺成型材料，其包含至少一种部分结晶的部分芳族聚酰胺（A）和至少一种无定形聚酰胺（B）。 聚酰胺（A）和（B）一起占聚酰胺成型材料的30-60重量％。 此外，聚酰胺成型材料包含40-70重量％的具有平坦横截面的玻璃纤维（C），0-15重量％的至少一个非卤化阻燃剂（D）和0-10重量％ 其他添加剂（E），组分（A）至（E）加入聚酰胺成型材料的100重量％。 所述至少一种部分结晶的部分芳族聚酰胺（A）的玻璃化转变温度至少为105℃。根据本发明的聚酰胺成型材料优选在注射成型毛刺形成试验中区分，因为在熔体 温度为320℃，工具温度为90℃，动态压力为100巴，保持压力为400巴，在通气口尺寸为30微米的模具臂的流路端，毛刺 长度G为30μm以下。 这种聚酰胺成型材料在注射成型时产生具有良好的表面质量和低翘曲的成型部件，并且适用于电气和电子设备的壳体或壳体部件的制造。