The natural rubber and its production manner, and the rubber constituent and gel rate of change of viscosity rise suppression mannered null dry front and back includes the additive and that additive for the natural rubber

摘要

PURPOSE: To produce a natural rubber prevented from suffering gelation or a mol.wt. decrease and satisfactory in both processability and material properties. ;CONSTITUTION: This natural rubber is the one obtained through drying under such conditions as to result in a change in the degree of gelation of 10% or lower and a retention of mol.wt. of 85% or higher. The process for producing the natural rubber comprises drying a natural rubber under such conditions as to result in a change in the degree of gelation of 10% or lower and a retention of mol.wt. of 85% or higher.;COPYRIGHT: (C)1996,JPO