Method of treating polymer
AssigneeKaneka Corporation
InventorsYoshiki Nakagawa, Kenichi Kitano, Nao Fujita
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Abstract
To eliminate a halogen group of a halogen group-terminated vinyl polymer, the present invention provides a method to treat said polymer with an oxy anion compound to thereby eliminate a terminal halogen group easily. Thus, it is possible to improve the storage stability of the polymer or a curable composition comprising said polymer and to prevent various materials coming into contact with the reaction apparatus or the polymer from being corroded. In particular, it is possible to improve the storage stability of a crosslinkable silyl group-containing polymer.
Claims20
A production method of a vinyl polymer comprising
- treating a halogen group-containing vinyl polymer (I) with an oxy anion compound to thereby reduce the halogen content of the polymer,
- wherein the oxy anion compound has no functional group other than an oxy anion group, and
- wherein a ratio (Mw/Mn) between weight average molecular weight (Mw) and number average molecular weight (Mn) of the vinyl polymer (I) is less than 1.8 as determined by gel permeation chromatography.
Dependencies are inferred from the claim text.