Luperstop® and Term-N-ator® P PVC shortstoppers
Arkema's patented Luperstop® GH1096 and TermNator® P shortstoppers are designed for suspension PVC applications to enhance resin color and quality. Both products can also be used at high concentrations as reaction killers.
Products in this range
Arkema's patented Luperstop® GH1096 hydroxy-tempo PVC shortstopper is designed for suspension PVC applications and is more active than conventional stoppers for quenching damaging radicals during polymerization. Arkema's studies have revealed a shortstopper to residual peroxide molar ratio < 1 when used with peroxydicarbonates. Clearly GH1096 provides outstanding stopping performance. This novel chemistry is water soluble and does not require solvent dilution. PVC resins protected by Luperstop® shortstoppers exhibit improved whiteness. Luperstop® GH1096 is approved for food contact PVC resin applications in Europe.
Arkema's application patented TermNator® P diethyl hydroxylamine shortstopper offers a safer and less toxic solution for polymerization control than other products in the market today. Processes involving both peroxyester and peroxydicarbonates to produce PVC function well with TermNator® P from 50ppm-150ppm. In this concentration, TermNator® P can improve whiteness of finished resins. At much higher concentrations, TermNator® P is an outstanding reaction killer, even in circumstances where continuous reactor stirring or agitation has failed. At 5000-6000 ppm, a runaway PVC reaction can be stopped in 30 seconds. As a shortstopper, the concentrations needed are similar for TermNator® P and Luperstop®. TermNator® P has the added benefit of unique reaction killing performance.
Building and construction
Chemical and plastics industry
Catalyst for resin
- Processing aid
Shortstopper of polymerisation