Process for preparing crosslinked resin particles

Details Process for preparing crosslinked resin particles Process for preparing crosslinked resin particles

C - Chemistry, Metallurgy

08

F

400/5051

C08F 2/22 (2006.01) C08F 136/00 (2006.01) C08F 283/02 (2006.01) C08F 283/06 (2006.01) C08F 291/02 (2006.01)

Patent

CA 2034095

Disclosed is an improved process of the post-emulsion method capable of forming crosslinked resin particles which do not have fusion bonds between particles and which have good storage stability and good redispersibility in an aqueous medium. The process comprises (a) dispersing in an aqueous medium a resinous component comprising: (I) a base resin having a glass transition temperature (Tg) of 0°C or less and a polymerizable double bond, (II) a monomer which, when polymerized, provides a resin of which Tg is 20°C higher than that of said base resin, or a resin of which Tg is 20°C higher than that of said base resin, and (III) a polyvinyl compound; (b) bringing about crosslinking inside the dispersed resin particles; and (c) removing the aqueous medium therefrom.

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