This invention relates to novel resin compositions containing 0,0,0',0'-tetramethyl 0,0'-thiodi-p-phenylene phosphorothioate. More particularly, this invention relates to novel dry blended polyvinyl chloride resin compositions containing 0,0,0',0'-tetramethyl 0,0'-thiodi-p-phenylene phosphorothioate and to methods for preparing and using said resin compositions.
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