Patent ID: 6593399
Filing Date: 2003-07-15
Classification: C08G,C09D,H01B

Abstract:
A method for preparing an intrinsically conductive copolymer composition comprising:preparing an emulsion latex in an aqueous medium; forming a mixture which comprises at least one cyclic heteroatom-containing monomer, the emulsion latex in the aqueous medium and an additive under first condition effective to maintain the emulsion latex in a first stabilized emulsion state; causing less than 10% by weight of the cyclic heteroatom-containing monomer based on total weight of the cyclic heteroatom containing monomer in the mixture to polymerize at a first reaction temperature and under second condition effective to produce a precursor to the intrinsically conductive copolymer in a second stabilized emulsion state; and converting the precursor and remainder of the cyclic heteroatom-containing monomer in the mixture at a second reaction temperature and under third condition effective to produce the conductive copolymer in a third stabilized emulsion state, wherein the second temperature is lower than the first temperature.