Light-stabilized star polymer microparticles

Details Light-stabilized star polymer microparticles Light-stabilized star polymer microparticles

C - Chemistry, Metallurgy

08

F

400/2039, 400/30

C08F 293/00 (2006.01) C08K 5/3435 (2006.01) C09D 153/00 (2006.01)

Patent

CA 1304527

3-16494/+ Light-stabilized star polymer microparticles Abstract Light-stabilized star polymer microparticles are described which are pre- pared with particular advantage by group transfer polymerization. The light stabilization is effected by carrying out at least a part step of the polymerization in the presence of a light stabilizer, for example a hindered amine or/and a UV absorber. With particular advantage, those light stabilizers are used which contain reactive groups in the molecule and, in this way, can be chemically incorporated into the polymer. The polymer microparticles show excellent light stability and are outstan- dingly suitable as constituents in coating compositions which can be processed, for example, to give coating films of high light stability.

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