| 摘要 |
Polyvinyl chloride dispersion resin heat stabilized with from about 0.1 phr to about 1.0 phr of a crystalline solid, water soluble, non-toxic nitrogen containing organic compound selected from the group consisting of urea, thiourea, dicyandiamide, guanidine, guanidine salts and their water soluble condensation polymers with formaldehyde, and mixtures thereof, in combination with from about 0.1 phr to about 1.0 phr of one or more water soluble non-toxic organic salts of calcium and/or from about 0.1 phr to about 1.0 phr of one or more water soluble nontoxic organic salts of zinc. |
