Melt polymer synthesis of poly ether phosphine oxides
AssigneesJohnson & Johnson Vision Products, Inc., Virginia Tech Intellectual Properties, Inc.
InventorsVenkateshwaran N. Sekharipuram, Beverly Sue Mecham, Atul Bhatnagar, James E. McGrath
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Abstract
A melt polymerization method for producing poly(arylene ethers phosphine oxide)s suited to optical applications comprising reacting a trimethyl silyl derivative of bisphenol and an activated aromatic dihalide, wherein either reactant is a phosphine oxide, is provided.
Claims17
A method for producing a poly ether phosphine oxide, said method comprising melt polymerizing reactants comprising
- (i) a trimethyl silyl derivative of a bisphenol and (ii) an activated aromatic dihalide, wherein (i), (ii), or (i) and (ii) is a phosphine oxide.
A method as defined in claim 10, wherein the weight ratio of BFPPO to DDS ranges from about 100:1 to about 5:95.
A method for producing bisphenol A poly ether phosphine oxide, said method comprising melt polymerizing trimethyl silylated bisphenol A and bis (4,4'-fluorophenyl)phenyl phosphine oxide in the presence of cesium fluoride catalyst.
A method for producing 6F Bisphenol poly ether phosphine oxide, said method comprising melt polymerizing trimethyl silylated 6F bisphenol and bis (4,4'-fluorophenyl)phenyl phosphine oxide in the presence of cesium fluoride catalyst.
Dependencies are inferred from the claim text.