发明申请
- 专利标题： PROCESS FOR PREPARING INJECTION MOLDED PARTS WITH DECREASED GLASS FIBER READ OUT
- 专利标题（中）： 用玻璃纤维读出来制备注塑成型件的工艺
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申请号： US13203522申请日： 2010-02-08
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公开(公告)号： US20120043700A1公开(公告)日： 2012-02-23
- 发明人: Eric Willem Van Der Vegte , Johannes Hoekstra , Rudy Rulkens
- 申请人： Eric Willem Van Der Vegte , Johannes Hoekstra , Rudy Rulkens
- 优先权： EP09154347.0 20090304
- 国际申请： PCT/EP10/51487 WO 20100208
- 主分类号： B29C45/72
- IPC分类号： B29C45/72 ; C08K7/14
摘要：
The present invention relates to a process for preparing an injection molded part, comprising the following steps: a preparing a glass fiber reinforced polyamide-6 composition with a relative viscosity of less than 2.4; b heating a such composition to obtain a viscous liquid; c filling a mold cavity with the viscous liquid with a filling time of at least 0.8 s; d leaving the viscous liquid in the mold under pressure until it cools to form a part; e opening the mold; f ejecting the part; wherein the polyamide-6 composition has a crystallization temperature under hyper DSC conditions of less than 168° C. The invention also relates to an injection molded part a having a maximum wall thickness of at least 2.5 mm; and/or b a part weight of at least 100 g per injection point; wherein the part consists of a glass fiber reinforced semi-crystalline polyamide-6 composition having a relative solution viscosity of less than 2.4, wherein the polyamide-6 composition has a crystallization temperature under hyper DSC conditions of less than 168° C.