发明名称 |
Electro-thermal printing ribbons. |
摘要 |
<p>The present invention is concerned with a ribbon for non-impact printing. The ribbon comprises a transfer coating and a substrate containing resin which is a mixture of from 50% to 90% by weight polycarbonate and from 50% to 10% by weight of a block copolymer of bis-phenol A Carbonate and dimethyl siloxane, and containing from about 15% to about 40% by weight of the resin of electrically conductive carbon black.</p> |
申请公布号 |
EP0036936(A1) |
申请公布日期 |
1981.10.07 |
申请号 |
EP19810101078 |
申请日期 |
1981.02.16 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SMITH, THOR LOWE;WEICHE, WILLIAM JOSEPH |
分类号 |
B41M5/392;B41J2/325;B41J31/00;B41M5/382;(IPC1-7):41M5/26;41J3/20;41M5/10 |
主分类号 |
B41M5/392 |
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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