Process for (co)polymerization of vinyl chloride monomer and optional further monomers by continuous dosing of peroxides

• Main Authors: SCHUT JACOBUS, WESTMIJZE HANS, VAN SWIETEN ANDREAS PETRUS
• Format: Patent
• Language: English; Polish
• Published: 30.01.2009
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; COMPOSITIONS BASED THEREON; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; GENERAL PROCESSES OF COMPOUNDING; HORTICULTURE; HUMAN NECESSITIES; HUNTING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; WATERING; WORKING-UP

The invention pertains to a process wherein peroxides are dosed to a polymerization mixture, with essentially all of the organic peroxide that is used in the polymerization process having a half-life from 0.05 hour to 1.0 hour at the polymerization temperature. The dosing of such peroxide allows for accurate control of the polymerization rate, and the process will render a polymer with a low residual peroxide level.