发明授权
- 专利标题: Method for the production of light-diffusing moulded items with excellent optical characteristics
- 专利标题(中): 用于生产具有优异光学特性的光漫射模制品的方法
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申请号: US10546241申请日: 2004-03-02
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公开(公告)号: US08609011B2公开(公告)日: 2013-12-17
- 发明人: Werner Hoess , Arne Schmidt , Klaus Albrecht , Klaus Schultes
- 申请人: Werner Hoess , Arne Schmidt , Klaus Albrecht , Klaus Schultes
- 申请人地址: DE Darmstadt
- 专利权人: Evonik Roehm GmbH
- 当前专利权人: Evonik Roehm GmbH
- 当前专利权人地址: DE Darmstadt
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: DE10320318 20030506
- 国际申请: PCT/EP2004/002059 WO 20040302
- 国际公布: WO2004/098857 WO 20041118
- 主分类号: B28B7/00
- IPC分类号: B28B7/00
摘要:
The invention relates to an injection molding method for the production of a complex, high optical quality light-diffusing molded item. The molding material used comprises a matrix made of polymethyl(meth)acrylate and spherical plastic particles whose particle size ranges from 1-24 μm and the concentration thereof ranges from 0.05-30 wt.-% in relation to the weight of the polymethyl(meth)acrylate. The spherical particles exhibit a refractive index differential in relation to the polymethyl(meth)acrylate matrix of 0.01 0.2.
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