1. Modern Styrenic Polymers: Polystyrenes and Styrenic Copolymers
2. United States Patent 2701241. С08К5/32, С08К5/00; 524/189. Stabilization of polystyrene with 2, 4-dinitrophenylhydrazine/Ernest H. Wood, Westfield and James R. Wilkinson, Milwaukee; assignors to Union Carbide and Carbon Corporation. Ser. No. 356102; application May 1,91,953; patented Feb. 11,955.
3. Canadian Intellectual Property Office 552448. Stabilization of polystyrene with 2, 4-dinitrophenylhydrazine/James R. Wilkinson, Ernest H. Wood; assignors to Union Carbide and Carbon Corporation. patented Jan. 2,81,958.
4. United States Patent 2759905. C08K5/18, C08K5/00; 524/256. Stabilization of Polystyrene with N, N'-di-(3-naphthyl-p-phenylenediamine/Ernest H. Wood, Westfield and James R. Wilkinson, Milwaukee; assignors to Union Carbide and Carbon Corporation. Ser. No. 356101; application May 1,91,953; patented Aug. 2,11,956.
5. Canadian Intellectual Property Office 552449. Stabilization of Polystyrene with N, N'-di-P-naphthyl-p-phenylenediamine; assignors to Union Carbide and Carbon Corporation, patented Jan. 2,81,958.