Production of polymer microparticles and coating...

Details Production of polymer microparticles and coating... Production of polymer microparticles and coating...

C - Chemistry, Metallurgy

08

F

402/296, 400/307

C08F 2/14 (2006.01) C08F 2/08 (2006.01) C08F 212/08 (2006.01) C08F 222/00 (2006.01)

Patent

CA 1187249

ABSTRACT OF DISCLOSURE The production is described of polymer microparticles, which may optionally be crosslinked, by dispersion polymerisation in aliphatic hydrocarbon liquid of a monomer mixture which comprises up to 50% of styrene or a substituted derivative there- of and up to 50% by weight of a derivative of maleic acid or fumaric acid which is soluble in the hydrocarbon liquid at the polymerisation temperature. The microparticles have a high refractive index and are suitable for incorporation in coating compositions which are based on a film-forming polymer, such as a thermosetting acrylic resin or an alkyd resin, containing a significant proportion of aromatic regidues and which are intended to be used either unpigmented or when containing only light-absorbing pigment.

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