Color-loaded polymer microparticles

Details Color-loaded polymer microparticles Color-loaded polymer microparticles

C - Chemistry, Metallurgy

09

B

402/397, 400/702

C09B 67/00 (2006.01) C08F 2/44 (2006.01) C09B 67/20 (2006.01) C09B 67/42 (2006.01) C09B 69/02 (2006.01)

Patent

CA 1327419

- 18 - ABSTRACT OF THE DISCLOSURE Water-soluble dyes are loaded on polymer micro- particles having a particle size of 0.01 to 50 microns. The carrier polymer microparticles are produced by emulsion polymerizing a mixture of at least one monofunctional monomer with a crosslinking monomer in the presence of a polymerizable amino acid derivative or a hydrophilic oligomer having a plurality of amphoionic groups. Water-soluble dyes are added to the resulting emulsion. Color-loaded polymer microparticles are obtained by removing water from the emulsion followed by resuspending in an organic solvent.

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