C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/10 (2006.01) C08F 220/68 (2006.01) C08F 265/06 (2006.01) C08F 291/00 (2006.01) C09D 133/04 (2006.01) C09D 151/00 (2006.01)
Patent
CA 2097010
- 17 - Abstract of the Disclosure: A vinyl polymer is obtain- able by polymerizing vinyl monomers in at least two stages by a procedure in which, in a first stage, from 5 to 95% by weight of vinyl monomers are polymerized in an organic solvent or in the absence of a solvent and, in the second stage, from 5 to 95% by weight of the vinyl monomers are polymerized in the presence of the vinyl polymer obtained in the first stage, likewise in an organic solvent or in the absence of a solvent, with the proviso that the polymerization in the second stage is carried out under conditions under which an average molecular weight Mn, which is at least 1,000 higher com- pared with that of the vinyl polymer, the first stage of results for the vinyl monomers of the second stage in the absence of the vinyl polymer obtained in the first stage.
Porsch Bettina
Renz Hans
Basf Aktiengesellschaft
Robic
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