发明授权
- 专利标题: Polycarbonate-titanium dioxide compositions and method
- 专利标题(中): 聚碳酸酯二氧化钛组合物及方法
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申请号: US979738申请日: 1992-11-23
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公开(公告)号: US5256728A公开(公告)日: 1993-10-26
- 发明人: David M. Dardaris , Gary R. Faler , Patrick J. McCloskey
- 申请人: David M. Dardaris , Gary R. Faler , Patrick J. McCloskey
- 申请人地址: 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: NY Schenectady
- 主分类号: C08G64/40
- IPC分类号: C08G64/40 ; C08K3/00 ; C08K3/22 ; C08L69/00 ; C08G64/42
摘要:
Pigmented polycarbonate compositions which are substantially stable with respect to molecular weight and melt viscosity are prepared by blending a redistributed polycarbonate with titanium dioxide free from polysiloxane coatings (i.e., "unpacified" titanium dioxide).