发明申请
US20090306258A1 LOW SMOKE POLYCARBONATE COMPOSITION, METHOD OF MANUFACTURE AND PRODUCT MADE THEREFROM
审中-公开
低烟雾聚碳酸酯组合物,其制造方法和产品制造
- 专利标题: LOW SMOKE POLYCARBONATE COMPOSITION, METHOD OF MANUFACTURE AND PRODUCT MADE THEREFROM
- 专利标题(中): 低烟雾聚碳酸酯组合物,其制造方法和产品制造
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申请号: US12468495申请日: 2009-05-19
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公开(公告)号: US20090306258A1公开(公告)日: 2009-12-10
- 发明人: Srinivas Siripurapu , Thomas Ebeling
- 申请人: Srinivas Siripurapu , Thomas Ebeling
- 申请人地址: US NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Schenectady
- 主分类号: C08L69/00
- IPC分类号: C08L69/00 ; C08K5/51
摘要:
A composition containing a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier, and a polyetherimide, wherein the polycarbonate comprises greater than or equal to about 50% by weight of the combined weights of the polycarbonate, polycarbonate-polysiloxane copolymer, impact modifier and polyetherimide and wherein a 3.2 millimeter thick, 7.6 centimeter square sample of the composition produces a smoke density (Ds) of less than 275 after a 4-minute burn, measured according to ASTME 662-03. In one embodiment, a composition may contain about 60 to about 85 wt. % polycarbonate, about 8 to about 20 wt. % polycarbonate-polysiloxane copolymer, about 0.5 to about 20 wt. % impact modifier, and about 1 to about 10 wt. % polyetherimide.