Impregnated films for the coating of wooden materials

The prodn. of impregnated film comprises (1) impregnating an initial base material (I) with an aq. soln. of polymer (P) derived from (a1) 50-100 wt% (meth)acrylamide and/or a N-methylol deriv. thereof, and (b1) 0-50 wt% comonomer, drying to a water content of less than 4 wt% opt., and (2) impregnati...

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Bibliographic Details
Main Authors KIRCHGAESSNER, UWE, DENZINGER, WALTER, WITTMANN, OTTO, JAECKH, CHRISTOF, DECHER, JAKOB
Format Patent
LanguageEnglish
French
German
Published 10.06.1998
Edition6
Subjects
IMPREGNATING OR COATING OF PAPER
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
TEXTILES
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Summary:The prodn. of impregnated film comprises (1) impregnating an initial base material (I) with an aq. soln. of polymer (P) derived from (a1) 50-100 wt% (meth)acrylamide and/or a N-methylol deriv. thereof, and (b1) 0-50 wt% comonomer, drying to a water content of less than 4 wt% opt., and (2) impregnating with an aq. soln. contg. a condensation prod. of (a2) 1 mole melamine, (b2) 1.4-2.5 moles formaldehyde and (c2) 0-0.2 mole of a cpd. which can undergo an addn. or condensation reaction with formaldehyde. Also claimed is impregnated film (IF) made by this process.
Bibliography:Application Number: EP19960110652