POLYMERIZATION PROCESS INVOLVING ADDITION OF MONOFUNCTIONAL VINYL MONOMER

Provided is a process of making a collection of polymeric beads, wherein the beads comprise(i) 75 to 99.7% by weight, based on the weight of the bead, polymerized units of monofunctional vinyl monomer, and(ii) 0.3 to 25% by weight, based on the weight of the bead, polymerized units of multifunctiona...

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Bibliographische Detailangaben
Hauptverfasser: Savo, Andrew M, Jones, Thomas, Ostrander, Michael
Format: Patent
Sprache:eng
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Zusammenfassung:Provided is a process of making a collection of polymeric beads, wherein the beads comprise(i) 75 to 99.7% by weight, based on the weight of the bead, polymerized units of monofunctional vinyl monomer, and(ii) 0.3 to 25% by weight, based on the weight of the bead, polymerized units of multifunctional vinyl monomer;wherein the process comprises(a) providing an aqueous suspension of monomer droplets comprising initiator, multifunctional vinyl monomer, and monofunctional vinyl monomer;(b) initiating polymerization of the monomer in the monomer droplets;(c) while the polymerization of the monomer in the monomer droplets is occurring, adding a monomer feed solution to the suspension.