DEPROTEINIZING AGENT FOR NATURAL RUBBER AND PRODUCTION OF DEPROTEINIZED NATURAL RUBBER USING SAME

摘要

PURPOSE:To obtain this agent which can eliminate simply and effectively protein from natural rubber by compounding protease and a specific nonionic surfactant as the effective components. CONSTITUTION:The agent contains, as the effective components, protease and at least one nonionic surfactant selected from the group consisting of surfactants based on a polyoxalkylene ester, a fatty acid ester of a polyhydric alcohol, a fatty acid ester of a saccharide, an alkyl polyglycoside, and a polyhydric alcohol ether of a polyoxyalkylene pref. in a wt. ratio of protease to the surfctant of (1:1)-(1:200). A deproteinized natural rubber is produced at a high productivity by adding 0.001-10wt.% the agent to a natural rubber latex.