| 54 |
Title |
TI |
[DE] Verfahren zum Konservieren von Papier |
| 71/73 |
Applicant/owner |
PA |
Institut für neue Materialien gemeinnützige GmbH Universität des Saarlandes, 66123 Saarbrücken, DE
|
| 72 |
Inventor |
IN |
Duddeck, Helmut, 44801 Bochum, DE
;
Kasemann, Reiner, 85635 Höhenkirchen-Siegertsbrunn, DE
;
Schmidt, Helmut, 66130 Saarbrücken, DE
;
Sepeur, Stefan, 66787 Wadgassen, DE
|
| 22/96 |
Application date |
AD |
Nov 23, 1995 |
| 21 |
Application number |
AN |
19543707 |
|
Country of application |
AC |
DE |
|
Publication date |
PUB |
May 28, 1997 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
|
| 51 |
IPC main class |
ICM |
D21H 25/18
|
| 51 |
IPC secondary class |
ICS |
|
|
IPC additional class |
ICA |
D21H 17/54
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
D21H 25/18
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
B41M 7/00
(2006.01)
B44D 7/00
(2006.01)
D21H 25/18
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[DE] Beschrieben wird ein Verfahren zum Konservieren von Papier, welches umfaßt (a) das gleichzeitige Kontaktieren einer Mehrzahl von sich zumindest in Teilbereichen berührenden Lagen aus Papier mit einer Konservierungsflüssigkeit, die Polykondensate auf der Basis von einer oder mehreren zur hydrolytischen Polykondensation befähigten Verbindungen der Elemente M der Hauptgruppen III bis V und der Nebengruppen II bis IV des Periodensystems der Elemente umfaßt, wobei in diesen Polykondensaten an mindestens 0,1% der Zentralatome M mindestens eine organische Gruppe G, die mindestens 2 Kohlenstoffatome, an die jeweils mindestens ein aus Wasserstoff- und Fluoratomen ausgewähltes Atom gebunden ist, umfaßt und keine polaren Substituenten aufweist, entweder direkt über eines der Kohlenstoffatome oder über eine Verbindungsgruppe A gebunden ist; und (b) die Trocknung und/oder Härtung des mit der Konservierungsflüssigkeit behandelten Papiers.
[EN] A process is disclosed for preserving paper involving the following steps: (a) a plurality of paper layers in contact with one another at least in regions is simultaneously brought into contact with a preservative fluid containing polycondensates based on one or more hydrolytic polycondensation-capable compounds of elements M of main groups III-V and sub-groups II-IV of the periodic table; in said polycondensates, at least one organic group (G) with at least two carbon atoms and for each carbon atom at least one atom selected from hydrogen or fluorine and without polar substituents is bound, either directly via one of the carbon atoms or via a connecting group A, to at least 0.1 % of the central atoms M; and (b) the paper thus treated with the preservative fluid is dried and/or hardened. In one example of the production of the preservative fluid, 27 g (1.5 mol) of water were stirred into a solution of 55.8 g (0.2 mol) of gamma -glycidoxypropyltriethoxysilane and 5.1 g (0.01 mol) of1H,1H,2H,2H-perfluoroctyltriethoxysilane. The reaction mixture was then heated for six hours under reflux conditions. 20 g (0.08 Mol) of bisphenol S were added to the by then single-phase solution which was then diluted with 100, 150 or 200 g ethanol. After the bisphenol S had dissolved, 0.8 g (0.001 Mol) of 1-methylimidazole were added as a cross-linking catalyst and the reaction mixture was stirred for 10 minutes. For coating, the solution was poured into a crystallisation dish. |
| 56 |
Cited documents identified in the search |
CT |
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| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
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| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
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Citing documents |
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Determine documents
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Sequence listings |
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Search file IPC |
ICP |
B41M 7/00
D21H 25/18
|
