C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/08 (2006.01) C08G 18/66 (2006.01) C08G 18/73 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2484268
The invention relates to aqueous polyurethane preparations, containing a polyurethane consisting of at least one organic isocyanate having no lateral alkyl groups, at least one alcohol that is at least bivalent and has a numerical average molecular weight ranging from 400 to 6000, at least one alcohol that is at least bivalent and has a numerical average molecular weight ranging from 62 to 399, at least one carboxylic acid having at least one hydroxy group in given proportions. The invention also relates to the use of said preparations and to substrates coated with the inventive preparations.
L'invention concerne des préparations de polyuréthanne aqueuses contenant un polyuréthanne, constitué d'au moins un isocyanate ne présentant aucun groupe alkyle latéral, d'au moins un alcool au moins bivalent présentant un poids moléculaire moyen en nombre de 400 à 6 000, d'au moins alcool au moins bivalent présentant un poids moléculaire moyen en nombre de 62 à 399, d'au moins un acide carboxylique présentant au moins un groupe hydroxy dans des rapports quantitatifs donnés. Cette invention concerne également l'utilisation desdites préparations ainsi que des substrats enduits de ces dernières.
Bingemann Rudolf
Haberle Karl
Hofer Bruno
Horner Klaus Dieter
Treiber Reinhard
Basf Aktiengesellschaft
Robic
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