发明名称 |
Deacidification of cellulose based materials using hydrofluoroether carriers |
摘要 |
An improved method of deacidifying books, imaged paper and other imaged materials having a cellulose base wherein, for a sufficient time to raise the pH of the materials, the materials are treated with alkaline particles of a basic metal oxide, hydroxide or salt dispersed in a hydrofluorether carrier, alone, or in combination with a perfluorinated carrier. A surfactant is added.
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申请公布号 |
US6080448(A) |
申请公布日期 |
2000.06.27 |
申请号 |
US19980054690 |
申请日期 |
1998.04.03 |
申请人 |
PRESERVATION TECHNOLOGIES LP |
发明人 |
LEINER, LEE H.;BURD, JAMES E.;GAYDOS, ROBERT M. |
分类号 |
D21H17/06;D21H17/11;D21H17/64;D21H21/24;D21H25/18;(IPC1-7):B05D5/00 |
主分类号 |
D21H17/06 |
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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