发明名称 |
METHOD OF COLORING POLYCARBONATE EXTRUDED OR MOLDED PRODUCTS FOR OPTICAL MEMBERS |
摘要 |
A method of coloring a polycarbonate extruded or molded product for optical members, which is colored by a liquid coloring process for obtaining a colored polycarbonate extruded or molded product for optical members by extrusion or injection molding. The process involves mixing a polycarbonate resin for optical members and a liquid coloring agent dispersion obtained by dispersing a coloring agent in a dispersing agent. The dispersing agent includes a specific saturated fatty acid ester or silicon oil. After mixing the polycarbonate resin and liquid coloring agent dispersion, the resulting mixture is melted and thereafter extruded or molded to form a product for optical members.
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申请公布号 |
US5116547(A) |
申请公布日期 |
1992.05.26 |
申请号 |
US19900554763 |
申请日期 |
1990.07.20 |
申请人 |
MITSUBISHI GAS CHEMICAL CO.;VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
TSUKAHARA, SHUJI;UMEMURA, TOSHIKAZU;ICHISE, KAZUYOSHI |
分类号 |
C08J3/20;B29B7/94;B29C45/00;B29C45/18;C08J3/22;C08K5/00;C08K5/101;C08L69/00 |
主分类号 |
C08J3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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