C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/20 (2006.01) C08F 12/04 (2006.01) C08L 25/02 (2006.01)
Patent
CA 2258306
Process for the preparation of polymer particles containing a vinylarene polymer by pre-polymerising vinylarene polymer, which pre-polymerised mass further contains an emulsifier, suspending the pre- polymerised mass; and polymerising vinylarene monomer in the suspended droplets. Further, the invention relates to polymer particles comprising vinylarene polymer, water and emulsifier, in which the amount of water ranges from more than 8 to 15 wt.%, based on total weight of the polymer particles.
L'invention concerne un procédé pour la préparation de particules de polymère contenant un polymère de vinylarène. Ce procédé consiste à pré-polymériser ce polymère de vinylarène, laquelle matière pré-polymérisée contient également un émulsifiant; à mettre en suspension la matière pré-polymérisée et à polymériser le monomère de vinylarène dans les gouttelettes en suspension. En outre, l'invention concerne des particules de polymère comprenant un polymère de vinylarène, de l'eau et un émulsifiant, dans lequel la quantité d'eau se situe entre 8 et 15 % en poids, par rapport au poids total des particules de polymère.
Crevecoeur Jeroen Joost
Neijman Eric Wilhelmus Johannes Frederik
Nelissen Laurentius Nicolaas Ida Hubertus
Zijderveld Johannes Maria
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Nova Chemicals (international) S.a.
Shell Internationale Research Maatschappij B.v.
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