发明名称 |
Polycarbonate compositions containing conversion material chemistry and having enhanced optical properties, methods of making and articles comprising the same |
摘要 |
In some embodiments, a composition comprises a bisphenol-A polycarbonate, wherein a molded article of the bisphenol-A polycarbonate has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925. In some embodiments, light emitting device comprises: a lighting element located in a housing. The housing is formed from a plastic composition comprising: the polycarbonate composition and a conversion material. After the conversion material has been exposed to an excitation source, the conversion material has a luminescence lifetime of less than 10−4 seconds when the excitation source is removed. |
申请公布号 |
US9287471(B2) |
申请公布日期 |
2016.03.15 |
申请号 |
US201313779324 |
申请日期 |
2013.02.27 |
申请人 |
SABIC GLOBAL TECHNOLOGIES B.V. |
发明人 |
de Brouwer Johannes;Hein Christopher Luke;Evans Thomas L.;Eijsbouts Paulus Johannes Maria;Belfadhel Hatem Abdallah;van den Bogerd Jos Arie;DiMattia Peter Anthony |
分类号 |
B29D22/00;B29D23/00;B32B1/08;H01L33/56;C09K11/77;C09K11/59;C09K11/64;C08G64/06;C08L69/00;H01L23/29;H01L33/50 |
主分类号 |
B29D22/00 |
代理机构 |
Cantor Colburn LLP |
代理人 |
Cantor Colburn LLP |
主权项 |
1. A polycarbonate composition comprising: bisphenol-A polycarbonate, wherein a molded article of the bisphenol-A polycarbonate has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925, wherein the molded article comprises an increase in yellow index (YI) of less than 2 during 2,000 hours of heat aging at 130° C. |
地址 |
NL |