"Examples of the abovementioned polymer include polymers such as polymethyl methacrylate, an acrylic acid/methacrylic acid copolymer, a styrene/maleinimide copolymer, polyvinyl alcohol, modified polyvinyl alcohol, poly(N-methylolacrylamide), a styrene/vinyltoluene copolymer, chlorosulfonated polyethylene, nitrocellulose, polyvinyl chloride, chlorinated polyolefin, polyester, polyimide, a vinyl acet" . . . .