Aromatic polysulfone compounds and their manufacture

Details Aromatic polysulfone compounds and their manufacture Aromatic polysulfone compounds and their manufacture

C - Chemistry, Metallurgy

08

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402/320

C08G 75/00 (2006.01) C08F 283/00 (2006.01) C08G 75/20 (2006.01) C08L 81/00 (2006.01)

Patent

CA 1304537

TITLE "Aromatic Polysulfone Compounds and their Manufacture" INVENTORS Michael D. Guiver Oleh Kutowy ABSTRACT OF DISCLOSURE This invention relates to aromatic polysulfone compounds and their manufacture. More particularly, this invention relates to functional group containing aromatic polysulfones, and their manufacture by metalation with organo-lithium compounds, of halogenated (e.g. brominated or chloromethylated) aromatic polysulfone compounds. The degree of halogenation of the starting material determines the sites that may be metalated, and the degree of metalation determines how many of these sites will be metalated. At least one of the metalated sites may be treated with an electrophile so that the lithium at that site is replaced by a residuum of the electrophile.

554119

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