Aqueous primary dispersions and coating matters, a method...

Details Aqueous primary dispersions and coating matters, a method... Aqueous primary dispersions and coating matters, a method...

C - Chemistry, Metallurgy

08

F

C08F 212/32 (2006.01) C08F 2/22 (2006.01) C08G 18/08 (2006.01) C08G 18/62 (2006.01) C08G 18/80 (2006.01) C09D 125/02 (2006.01) C09D 175/04 (2006.01) C08F 220/14 (2006.01) C08F 220/18 (2006.01)

Patent

CA 2393524

The invention relates to aqueous primary dispersions and coating matters containing dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core-shell particles having a particle diameter <= 500 nm. The inventive dispersions and coating matters can be produced by means of controlled radical micro or miniemulsion polymerisation of (A) at least one olefinically unsaturated monomer and (B) at least one olefinically unsaturated monomer of the general formula (I): R1R2C=CR3R4, wherein the radicals R1, R2, R3 and R4, independently from each other, stand for hydrogen atoms or substituted or unsubstituted alkyl-, cycloalkyl-, alkylcycloalkyl-, cycloalkylalkyl-, aryl, alkylaryl-, cycloalkylaryl-arylalkyl- or arylcycloalkyl radicals, whereby said last monomer is different from the monomer (A), with the proviso that at least two of the variables R1, R2, R3 and R4 stand for substituted or unsubstituted aryl-, arylalkyl- or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals, and in the presence of (C) at least one hydrophobe cross-linking agent for the copolymer resulting from the starting products (A) and (B). The invention also relates to the use thereof.

La présente invention concerne des dispersions primaires et des substances de revêtement aqueuses, qui contiennent des particules polymères solides et/ou liquides, en dispersion et/ou en émulsion, et/ou des particules noyau-couches solides, en dispersion, d'un diamètre particulaire <= 500 nm, pouvant être produites par polymérisation radicalaire contrôlée en microémulsion ou en miniémulsion A) d'au moins un monomère oléfiniquement insaturé, B) d'au moins un monomère oléfiniquement insaturé, différent du monomère oléfiniquement insaturé (A), de formule générale (I):R?1¿R?2¿C=CR?3¿R?4¿, dans laquelle les restes R?1¿, R?2¿, R?3¿ et R?4¿, respectivement indépendamment les uns des autres, représentent des atomes d'hydrogène ou des restes alkyle, cycloalkyle, alkylcycloalkyle, cycloalkylalkyle, aryle, alkylaryle, cycloalkylaryle, arylalkyle ou arylcycloalkyle, substitués ou non substitués, à condition qu'au moins deux des variables R?1¿, R?2¿, R?3¿ et R?4¿ représentent des restes aryle, arylalkyle ou arylcycloalkyle, substitués ou non substitués, notamment des restes aryle substitués ou non substitués, en présence d'au moins C) au moins un agent de réticulation hydrophobe, destiné aux copolymères résultant des produit initiaux (A) et (B). La présente invention concerne également l'utilisation de ces dispersions primaires et substances de revêtement aqueuses.

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