C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/08 (2006.01) C08G 18/67 (2006.01) C08J 3/03 (2006.01) C09D 11/00 (2006.01) C09D 17/00 (2006.01)
Patent
CA 2598970
The invention relates to an aqueous dispersion containing a pigment (B) that is at least partially sheathed in at least one radiation-curable polyurethane (A). Said radiation-curable polyurethane (A) is obtained by the reaction of (a) at least one diisocyanate with (b) at least one compound comprising at least two groups that are capable of reacting with isocyanate and (c) at least one compound of general formula (I), in which the variables are defined as follows: R1 and R2 are identical or different and selected independently of one another from hydrogen and C1-C10 alkyl; X1 is selected from oxygen and N- R3; A1 is selected from C1-C20 alkene, which is unsubstituted or mono- or polyvalently substituted by C1-C4 alkyl, phenyl or O-C1-C4 alkyl, whereby in the C1-C20 alkene one or more non-adjacent CH2 groups can be replaced by oxygen; X2 is selected from hydroxyl and NH-R3, where R3 is identical or different and selected from hydrogen, C1-C10 alkyl and phenyl.
L'invention concerne une dispersion aqueuse, contenant un pigment (B) recouvert au moins partiellement d'un polyuréthanne (A) durcissable aux rayonnements, ledit polyuréthanne (A) étant obtenu par transformation des composés suivants : (a) au moins un diisocyanate, comprenant (b) un composé présentant au moins deux groupes destinés à entrer en réaction avec l'isocyanate et (c) au moins un composé de formule (I). Dans cette formule, les variables sont définies ci-après : R1, R2 sont identiques ou différents et, indépendamment l'un de l'autre, représentent hydrogène ou alykle C1-C10, X1 représente oxygène et N-R3, A1 représente alkylène C1 -C20, non substitué ou substitué une ou plusieurs fois par alykle C1-C4, phényle, ou alkyle O-C1 -C4, un ou plusieurs groupes CH2 non adjacents pouvant être remplacés par oxygène dans l'alkylène C1-C20, X2 représente hydroxyle et NH-R3, R3 est identique ou différent et représente hydrogène, alkyle C1-C10 et phényle.
Dieleman Cedric
Kluge Michael
Krueger Christian
Basf Aktiengesellschaft
Robic
LandOfFree
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