Patent ID: 8017042
Filing Date: 2011-09-13
Classification: A61B,A61K

Abstract:
1. A method for forming a conductive composition, the method comprising the steps of: a) preparing a pre-gel reaction mixture comprising: about 33 wt % to 68 wt % of a humectant; about 1 wt % to about 8 wt % of an electrolyte; about 2 wt % to 8 wt % sodium hydroxide; about 18 wt % to about 45 wt % of a monomer mix, the monomer mix comprising about 60 wt % to 85% of acrylic acid, about 15 wt % to 40 wt % of the sodium salt of 2-acrylamido-2-methylpropane sulfonic acid, in which part of the acrylic acid is neutralized by the sodium hydroxide to form sodium acrylate; a polymerization initiator; about 5 wt % to about 18 wt % water, exclusive of water formed by the neutralization of the part of the acrylic acid by the sodium hydroxide; and b) polymerizing the monomer mix to form a copolymer.