发明名称 |
Erasable dense paper and improved method of manufacturing |
摘要 |
A paper which affords complete erasability of typewriter images is disclosed. The paper comprises a web of cellulosic fibers and a blend of a rigid polymeric material and a compatible filler together with a small but effective amount of tin carried by the web. A process for manufacturing the paper is also disclosed.
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申请公布号 |
US4393103(A) |
申请公布日期 |
1983.07.12 |
申请号 |
US19810297104 |
申请日期 |
1981.08.28 |
申请人 |
LOUDEN, WILLIAM G. |
发明人 |
LOUDEN, WILLIAM G. |
分类号 |
D21H17/12;(IPC1-7):B05D3/02;B32B23/08;B32B27/10 |
主分类号 |
D21H17/12 |
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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