Specific examples of binder agents include but are not limited to vinyl polymers, such as polyvinylpyrrolidone, polyvinyl alcohol, and the like; cellulosic polymers, such as hydroxypropylmethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and the like; acrylic polymers and copolymers such as methacrylic acid copolymers, ethyl acrylate-methylmethacrylate copolymers, and the like; natura