VINYL CHLORIDE RESIN AGGREGATE PARTICLES, PROCESS FOR PRODUCING SAME, AND GLOVE OBTAINED USING SAME

摘要

THE PRESENT INVENTION PROVIDES: VINYL CHLORIDE-BASED RESIN AGGREGATE PARTICLES THAT CAN BE PRODUCED THROUGH A HEAT TREATMENT WHILE INHIBITING SCALE FORMATION WITHIN A VESSEL FOR THE HEAT TREATMENT AND THAT PROVIDE A PLASTISOL WITH NON-INFILTRATING PROPERTY AND A SATISFACTORY SAGGING PROPERTY; A PROCESS FOR PRODUCING THE PARTICLES; AND A GLOVE OBTAINED USING THE PARTICLES. THE VINYL CHLORIDE-BASED RESIN AGGREGATE PARTICLES OF THE PRESENT INVENTION ARE CHARACTERIZED IN THAT THE AGGREGATE PARTICLES HAVE A MEAN VOLUME PARTICLE DIAMETER OF 10 TO 60 µM, THE PERCENTAGE OF PARTICLES HAVING A PARTICLE DIAMETER OF 10 TO 60 µM IS AT LEAST 50 VOL.%, AND A PLASTISOL CONTAINING 100 WEIGHT PARTS OF THE AGGREGATE PARTICLES AND 160 WEIGHT PARTS OF DI-2-ETHYLHEXYL PHTHALATE SATISFIES THE RELATIONSHIP 3??70/?40?1000 WHERE ?40 IS THE VISCOSITY AT A SHEAR RATE OF 1 S?¹ OF THE PLASTISOL THAT HAS BEEN RETAINED AT 40°C FOR 10 MINUTES AND ?70 IS THE VISCOSITY AT A SHEAR RATE OF 1 S?¹ OF THE PLASTISOL THAT HAS BEEN WARMED FROM 40°C AT 10°C/MM. AND RETAINED AT 70°C FOR 3 MINUTES. THE VINYL CHLORIDE-BASED RESIN AGGREGATED PARTICLES ARE OBTAINED BY FLOCCULATING A VINYL CHLORIDE-BASED RESIN THROUGH A TWO-STAGE HEAT TREATMENT CONSISTING OF A PRIMARY HEAT TREATMENT AND A SECONDARY HEAT TREATMENT.