Discoloration inhibitor of deproteinized natural rubber latex, deproteinized natural rubber latex, and method for preserving the same

摘要

THE PRESENT INVENTION PROVIDES A DISCOLORATION INHIBITOR OF A DEPROTEINIZED NATURAL RUBBER LATEX, WHICH COMPRISES AT LEAST ONE SELECTED FROM THE GROUP CONSISTING OF A SALT OF A WATER-SOLUBLE DITHIOCARBAMIC ACID DERIVATIVE, A SALT OF A PYROSULFUROUS ACID, A CYCLOALKANETHIOL AND A HALOGENATED THIOPHENOL, AND PREVENTS THE DISCOLORATION CAUSED BY BLENDING A PHENOLIC ANTIOXIDANT IN THE DEPROTEINIZED NATURAL RUBBER LATEX FOR A LONG PERIOD OF TIME.