| abstract |
Denatonium benzoate (Bitrex™) dissolves in molten flexible polyvinyl chloride, imparting a bitter flavor to the plastic which discourages rats from gnawing on it. Denatonium benzoate can in all likelihood be added to polymers other than polyvinyl chloride (e.g., polyurethane or polyethylene) either directly or by first dissolving the denatonium benzoate in an organic solvent which is miscible with the chosen polymer and then mixing this solution of organic solvent and denatonium benzoate into a molten solution of the chosen polymer. |