C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/457
C08F 6/06 (2006.01) C08F 6/02 (2006.01)
Patent
CA 1338872
Vinyl aromatic-conjugated diene copolymers having polymer chains which end with an alkali metal and which are obtained by the polymerization in solution of at least one vinyl aromatic hydrocarbon and of a conjugated diene in the presence of a catalyst based on an alkali metal are decolorized by treating the copolymer with a monocarboxylic acid of general formula (Y)2-n - X - (R-COOH)n in which X is S, S-CH2-S, or (S-S), and Y and R are alkyl radicals having 1 to 16 carbon atoms and n is 1 or 2.
577898
Lanza Emmanuel
Naveau Jean M. M. G.
Fina Research S.a.
Gowling Lafleur Henderson Llp
Lanza Emmanuel
Naveau Jean M. M. G.
LandOfFree
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