Verfahren zur Wiederverfestigung von geschädigtem Papier
摘要
<p>In a process for restoring damaged paper, the aged, acid-damaged fragile paper is treated with a solution containing isocyanates or with an isocyanate vapour, preferably isocyanates having two or more isocyanate groups being used.</p>
申请公布号
DE4225780(C1)
申请公布日期
1994.01.05
申请号
DE19924225780
申请日期
1992.08.04
申请人
BATTELLE-INSTITUT E.V., 6000 FRANKFURT, DE
发明人
WITTEKIND, JUERGEN, 6000 FRANKFURT, DE;SCHERER, KARL-HEINZ, 6000 FRANKFURT, DE
