METHOD OF STABILIZING NATURAL RUBBER LATEX Russian patent published in 2002 - IPC

FIELD: rubber industry. SUBSTANCE: invention relates to production? Storage, transportation, and treatment of natural rubber latex. Stabilization of latex is achieved by adding disinfecting agent to container with latex at stirring, said disinfecting agent being a polyalkyleneguanidine salt, whereas ratio of the latter to latex is (0.000025-0.001):1. More specifically, polyalkyleneguanidine salt is salt of polyalkyleneguanidine having hydrophobic terminal groups and is depicted by formula wherein R denotes C₁₈H₃₇ or benzyl, A denotes chloride, benzoate, or acetate ion, and n varies between 5 and 20. Disinfecting agent can be added to concentrated or crude latex, or to skim-latex, or to ammonia-stabilized latex. EFFECT: reduced toxicity of stabilized latex. 6 cl, 2 tbl, 16 ex