Primary ExaminerV. P. Hoke Attorney, Agent, or Firm-J. Hughes Powell, Jr. [57] ABSTRACT Flame and smoke retardant vinyl chloride and vinylidene chloride polymer compositions are obtained by including therein a compound selected from the group consisting of Si N M05 and mixtures thereof. 5 Claims, N0 Drawings FLAME AND SMOKE RETARDANT VINYL CHLORIDE AND VINYLIDENE CHLORIDE POLYMER COMPOSITIONS This