Preparation of conductive polyurethanes using a conductive quasi-solution
First Claim
1. A method of making a homogeneously conductive single-phase polyurethane, comprisingmixing, with heating, a combination containing between 10% and 30% by weight of a transition metal salt, a dispersing agent, and a solvent comprising a flame retardant and/or polyol to provide a conductive quasi-solution in which said transition metal salt is partially dissolved in said solvent, andcombining said conductive quasi-solution with a polyurethane precursor and a diisocyante to provide a homogeneously conductive single-phase polyurethane containing between 0.02% and 1% of said transition metal salt by weight, wherein at least part of the combining involves reaction injection molding.
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Abstract
A conductive quasi-solution useful for making a homogeneously conductive single-phase polyurethane, comprising a transition metal salt, a carrier solution, and a dispersing agent, wherein said conductive quasi-solution has a transition metal salt concentration between 10 and 30% by weight, and methods of making thermoset and thermoplastic polyurethane polymers therewith.
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Citations
12 Claims
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1. A method of making a homogeneously conductive single-phase polyurethane, comprising
mixing, with heating, a combination containing between 10% and 30% by weight of a transition metal salt, a dispersing agent, and a solvent comprising a flame retardant and/or polyol to provide a conductive quasi-solution in which said transition metal salt is partially dissolved in said solvent, and combining said conductive quasi-solution with a polyurethane precursor and a diisocyante to provide a homogeneously conductive single-phase polyurethane containing between 0.02% and 1% of said transition metal salt by weight, wherein at least part of the combining involves reaction injection molding.
Specification