Patent ID: 7375178
Filing Date: 2008-05-20
Classification: C08G

Abstract:
1. A method for preparing a phosphonate homopolymer or copolymer, said method comprising reacting (a) at least one phosphonic acid halide having the formula wherein R (b) a bisphenol selected from the group consisting of hydroquinone, resorcinol, 4,4′-dihydroxybiphenyl, 4,4′-cyclohexylidene diphenol, bisphenol A, bis(4-hydroxyphenyl)methane, 2,2-bis(2-hydroxyphenyl)propane, bis P, 4,4′-bis-S, 2,2′bis-S, 2-hydroxyphenyl-4′hydroxyphenyl sulfone, dihydroxydiphenyl ether, bis(4-hydroxyphenyl)sulfide, bis(2-hydroxyphenyl)sulfide, dihydroxybenzophenone, 1,5-hydroxynaphthalene, 2,5-dihydroxynaphthalene, 2,2-bis(3,5-dimethyl-4-hydroxyphenyl) propane, thiodithiophenol, phenolphthalein, 4,4′-bis(hydroxyphenyl)phenylphosphine oxide, α,α′-bis(4-hydroxy-3-methylphenyl)-1,4diisopropylbenzene, bis E, 2,2-bis(4-hydroxy-3-methylphenyl)propane, bis(4-hydroxy-3-methylphenyl)sulfide, dihydroxydiphenylether, 1,3-bis(4-hydroxyphenoxy) benzene, phenyl HC, t-butyl HQ, 4,4′-thiobis(t-butyl cresol), 2,2′-thiobis(4-t-octylphenol), and any combination of any of the foregoing to yield said homopolymer or copolymer.