Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From boron-containing reactant
Reexamination Certificate
2006-07-11
2006-07-11
Truong, Duc (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From boron-containing reactant
C528S004000, C528S008000, C528S397000, C428S690000, C428S917000
Reexamination Certificate
active
07074884
ABSTRACT:
A process for preparing a conjugated polymer, which comprises polymerizing in a reaction mixture (a) an aromatic monomer having at least two boron derivative functional groups selected from the group consisting of boronic acid groups, boronic ester groups, and borane groups, and an aromatic monomer having at least two reactive halide functional groups, or (b) an aromatic monomer having one reactive halide functional group and one boron derivative functional group selected from the group consisting of boronic acid groups, boronic ester groups, and borane groups, an amount of a catalyst suitable for catalyzing the polymerization of the aromatic monomers, and a base in an amount sufficient to convert the boron derivative functional groups into boron anionic groups, characterized in that the reaction mixture further comprises a first solvent and a second solvent with which said first solvent is substantially immiscible and an emulsifier in an amount sufficient to form an emulsion of the reaction mixture.
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Towns Carl
Wallace Paul
Cambridge Display Technology Limited
Truong Duc
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