C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 3/00 (2006.01) C09D 153/00 (2006.01)
Patent
CA 2438793
The invention relates to aqueous dispersions that are free or substantially free from volatile organic compounds, containing (A) at least one graft polymer, producible by two-stage or multiple-stage radical copolymerization in an aqueous medium of a) at least one olefinically unsaturated monomer, selected from the group consisting of hydrophilic and hydrophobic olefinically unsaturated monomers, and b) at least one olefinically unsaturated monomer of the general formula R1R2C=CR3R4 (I) that is different from the olefinically unsaturated monomer (a), in which formula R1, R2, R3 and R4 independently represent hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl groups, with the proviso that at least two of the variables R1, R2, R3 and R4 represent substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl groups, especially substituted or unsubstituted aryl groups; and (B) hydrophilic nanoparticles. The invention also relates to the production of said dispersions and to their use as coating materials, glues and sealing compounds or to the production thereof.
L'invention concerne des dispersions aqueuses libres ou essentiellement libres de composés organiques volatils, contenant (A) au moins un polymérisat mixte greffé pouvant être fabriqué par copolymérisation radicalaire en au moins deux étapes dans un milieu aqueux. Ledit milieux aqueux est composé a) d'au moins un monomère à insaturation oléfinique, choisi dans le groupe des monomères à insaturation oléfinique hydrophiles et hydrophobes, et b) d'au moins un monomère à insaturation oléfinique différent du monomère à insaturation oléfinique (a), de formule R?1¿R?2¿C=CR?3¿R?4¿ (I) dans laquelle les restes R?1¿, R?2¿, R?3¿ et R?4¿ sont indépendamment l'un de l'autre des restes alkyle, cycloalkyle, alkylcycloalkyle, cycloalkylalkyle, aryle, alkylaryle, cycloalkylaryle, arylalkyle ou arylcycloalkyle non substitués, au moins deux des variables R?1¿, R?2¿, R?3¿ et R?4¿ étant des restes aryle, arylalkyle ou arylcycloalkyle substitués ou non, notamment des restes aryle substitués ou non. Les dispersions aqueuses selon l'invention contiennent par ailleurs (B) des particules hydrophiles. L'invention concerne également un procédé de fabrication desdites dispersions aqueuses ainsi que leur utilisation en tant qu'agents de revêtement, agents adhésifs et agents d'étanchéité, ou dans la fabrication desdits agents.
Bremser Wolfgang
Steiner Hans-Peter
Strickmann Frank
Basf Coatings Ag
Robic
LandOfFree
Aqueous dispersions that are free or substantially free from... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aqueous dispersions that are free or substantially free from..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous dispersions that are free or substantially free from... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1605431