发明授权
- 专利标题: Polycarbonate resin composition and molded articles with the same
- 专利标题(中): 聚碳酸酯树脂组合物及其成型品
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申请号: US11260700申请日: 2005-10-27
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公开(公告)号: US07943692B2公开(公告)日: 2011-05-17
- 发明人: Bong Jae Lee , Kyung Tae Kim , Sung Sig Min , Jong Cheol Lim
- 申请人: Bong Jae Lee , Kyung Tae Kim , Sung Sig Min , Jong Cheol Lim
- 申请人地址: KR Gumi-si
- 专利权人: Cheil Industries Inc.
- 当前专利权人: Cheil Industries Inc.
- 当前专利权人地址: KR Gumi-si
- 代理机构: Summa, Additon & Ashe, P.A.
- 优先权: KR10-2004-0086648 20041028
- 主分类号: C08L23/00
- IPC分类号: C08L23/00 ; C08L51/00 ; C08L51/04 ; C08L67/00 ; C08L69/00 ; C08L77/12
摘要:
A polycarbonate composition and its use as a molded article and as housing or a part of electronic device are disclosed. The polycarbonate composition includes a polycarbonate resin, a liquid crystalline polymer resin, a core-shell grafted copolymer and a low molecular weight polyolefin. The composition has an impact strength of at least about 68 kg·cm/cm when a specimen of the composition is subject to a chemical treatment and the chemically treated specimen is tested according to the standard ASTM D256 (⅛″ notched). The composition has an impact resistance of exhibiting substantially no cracking when a specimen of the composition is subject to a chemical treatment and the chemically treated specimen is tested at 0.6 m according to the standard ASTM D3029. The chemical treatment includes submerging the specimen in paint thinner for 20 seconds and thereafter drying the specimen at 70° C. for 5 minutes. Further, the composition has a fatigue resistance of at least about 130,000 when a specimen of the composition is tested at 4000 psi at 5 times per second according to the standard ASTM D638.
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