C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 24/00 (2006.01)
Patent
CA 2347453
This invention relates to the oligomerization, polymerization and copolymerization of substituted and unsubstituted .alpha.-methylene-.gamma.- butyrolactones and the products thereof. Cobalt (II) and cobalt (III) chain transfer catalysts are used to control the molecular weight and impart an aromatic functionality to the products formed.
Cette invention a trait à l'oligomérisation, la polymérisation et la copolymérisation de méthylène-.alpha.-butyrolactones-.gamma. substitués et non substitués ainsi qu'à des produits dérivés. On utilise, dans le cadre de cette invention, des catalyseurs de migration de chaîne à base de cobalt (II) et de cobalt (III) pour conférer une fonctionnalité aromatique aux produits obtenus.
Gridnev Alexei Alexeyevich
Ittel Steven Dale
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
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